diff --git a/basic_machines/chest.lua b/basic_machines/chest.lua
new file mode 100644
index 0000000..a072764
--- /dev/null
+++ b/basic_machines/chest.lua
@@ -0,0 +1,278 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2019 Joachim Stolberg
+
+	LGPLv2.1+
+	See LICENSE.txt for more information
+	
+	TA2/TA3/TA4 Chest
+	
+]]--
+
+-- for lazy programmers
+local S = function(pos) if pos then return minetest.pos_to_string(pos) end end
+local P = minetest.string_to_pos
+local M = minetest.get_meta
+-- Techage Related Data
+local TRD = function(pos) return (minetest.registered_nodes[minetest.get_node(pos).name] or {}).techage end
+
+-- Load support for intllib.
+local MP = minetest.get_modpath("techage")
+local I,_ = dofile(MP.."/intllib.lua")
+
+local PlayerActions = {}
+local InventoryState = {}
+
+
+local function store_action(pos, player, action, stack)
+	local meta = minetest.get_meta(pos)
+	local name = player and player:get_player_name() or ""
+	local number = meta:get_string("number")
+	local item = stack:get_name().." "..stack:get_count()
+	PlayerActions[number] = {name, action, item}
+end	
+
+local function send_off_command(pos)
+	local meta = minetest.get_meta(pos)
+	local dest_num = meta:get_string("dest_num")
+	local own_num = meta:get_string("number")
+	local owner = meta:get_string("owner")
+	techage.send_message(dest_num, owner, nil, "off", own_num)
+end
+
+
+local function send_command(pos)
+	local meta = minetest.get_meta(pos)
+	local dest_num = meta:get_string("dest_num")
+	if dest_num ~= "" then
+		local own_num = meta:get_string("number")
+		local owner = meta:get_string("owner")
+		techage.send_message(dest_num, owner, nil, "on", own_num)
+		minetest.after(1, send_off_command, pos)
+	end
+end
+
+local function allow_metadata_inventory_put(pos, listname, index, stack, player)
+	if minetest.is_protected(pos, player:get_player_name()) then
+		return 0
+	end
+	store_action(pos, player, "put", stack)
+	send_command(pos)
+	return stack:get_count()
+end
+
+local function allow_metadata_inventory_take(pos, listname, index, stack, player)
+	if minetest.is_protected(pos, player:get_player_name()) then
+		return 0
+	end
+	store_action(pos, player, "take", stack)
+	send_command(pos)
+	return stack:get_count()
+end
+
+local function can_dig(pos, player)
+	if minetest.is_protected(pos, player:get_player_name()) then
+		return false
+	end
+	local inv = minetest.get_meta(pos):get_inventory()
+	return inv:is_empty("main")
+end
+
+local function after_dig_node(pos, oldnode, oldmetadata, digger)
+	techage.remove_node(pos)
+end
+
+local function formspec2()
+	return "size[9,8]"..
+	default.gui_bg..
+	default.gui_bg_img..
+	default.gui_slots..
+	"list[context;main;0.5,0;8,4;]"..
+	"list[current_player;main;0.5,4.3;8,4;]"..
+	"listring[context;main]"..
+	"listring[current_player;main]"
+end
+
+minetest.register_node("techage:chest_ta2", {
+	description = I("TA2 Protected Chest"),
+	tiles = {
+		-- up, down, right, left, back, front
+		"techage_filling_ta2.png^techage_frame_ta2.png",
+		"techage_filling_ta2.png^techage_frame_ta2.png",
+		"techage_filling_ta2.png^techage_frame_ta2.png^techage_appl_chest_back_ta3.png",
+		"techage_filling_ta2.png^techage_frame_ta2.png^techage_appl_chest_back_ta3.png",
+		"techage_filling_ta2.png^techage_frame_ta2.png^techage_appl_chest_back_ta3.png",
+		"techage_filling_ta2.png^techage_frame_ta2.png^techage_appl_chest_front_ta3.png",
+	},
+
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		local inv = meta:get_inventory()
+		inv:set_size('main', 32)
+	end,
+	
+	after_place_node = function(pos, placer)
+		local meta = minetest.get_meta(pos)
+		local number = techage.add_node(pos, "techage:chest_ta2")
+		meta:set_string("number", number)
+		meta:set_string("owner", placer:get_player_name())
+		meta:set_string("formspec", formspec2())
+		meta:set_string("infotext", I("TA2 Protected Chest").." "..number)
+	end,
+
+	can_dig = can_dig,
+	after_dig_node = after_dig_node,
+	allow_metadata_inventory_put = allow_metadata_inventory_put,
+	allow_metadata_inventory_take = allow_metadata_inventory_take,
+
+	paramtype2 = "facedir",
+	groups = {choppy=2, cracky=2, crumbly=2},
+	is_ground_content = false,
+	sounds = default.node_sound_wood_defaults(),
+})
+
+local function formspec3()
+	return "size[10,8]"..
+	default.gui_bg..
+	default.gui_bg_img..
+	default.gui_slots..
+	"list[context;main;0,0;10,4;]"..
+	"list[current_player;main;1,4.3;8,4;]"..
+	"listring[context;main]"..
+	"listring[current_player;main]"
+end
+
+minetest.register_node("techage:chest_ta3", {
+	description = I("TA3 Protected Chest"),
+	tiles = {
+		-- up, down, right, left, back, front
+		"techage_filling_ta3.png^techage_frame_ta3.png",
+		"techage_filling_ta3.png^techage_frame_ta3.png",
+		"techage_filling_ta3.png^techage_frame_ta3.png^techage_appl_chest_back_ta3.png",
+		"techage_filling_ta3.png^techage_frame_ta3.png^techage_appl_chest_back_ta3.png",
+		"techage_filling_ta3.png^techage_frame_ta3.png^techage_appl_chest_back_ta3.png",
+		"techage_filling_ta3.png^techage_frame_ta3.png^techage_appl_chest_front_ta3.png",
+	},
+
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		local inv = meta:get_inventory()
+		inv:set_size('main', 40)
+	end,
+	
+	after_place_node = function(pos, placer)
+		local meta = minetest.get_meta(pos)
+		local number = techage.add_node(pos, "techage:chest_ta3")
+		meta:set_string("number", number)
+		meta:set_string("owner", placer:get_player_name())
+		meta:set_string("formspec", formspec3())
+		meta:set_string("infotext", I("TA3 Protected Chest").." "..number)
+	end,
+
+	can_dig = can_dig,
+	after_dig_node = after_dig_node,
+	allow_metadata_inventory_put = allow_metadata_inventory_put,
+	allow_metadata_inventory_take = allow_metadata_inventory_take,
+
+	paramtype2 = "facedir",
+	groups = {choppy=2, cracky=2, crumbly=2},
+	is_ground_content = false,
+	sounds = default.node_sound_wood_defaults(),
+})
+
+local function formspec4()
+	return "size[10,9]"..
+	default.gui_bg..
+	default.gui_bg_img..
+	default.gui_slots..
+	"list[context;main;0,0;10,5;]"..
+	"list[current_player;main;1,5.3;8,4;]"..
+	"listring[context;main]"..
+	"listring[current_player;main]"
+end
+
+minetest.register_node("techage:chest_ta4", {
+	description = I("TA4 Protected Chest"),
+	tiles = {
+		-- up, down, right, left, back, front
+		"techage_filling_ta4.png^techage_frame_ta4_top.png",
+		"techage_filling_ta4.png^techage_frame_ta4.png",
+		"techage_filling_ta4.png^techage_frame_ta4.png^techage_appl_chest_back_ta4.png",
+		"techage_filling_ta4.png^techage_frame_ta4.png^techage_appl_chest_back_ta4.png",
+		"techage_filling_ta4.png^techage_frame_ta4.png^techage_appl_chest_back_ta4.png",
+		"techage_filling_ta4.png^techage_frame_ta4.png^techage_appl_chest_front_ta4.png",
+	},
+
+	on_construct = function(pos)
+		local meta = minetest.get_meta(pos)
+		local inv = meta:get_inventory()
+		inv:set_size('main', 50)
+	end,
+	
+	after_place_node = function(pos, placer)
+		local meta = minetest.get_meta(pos)
+		local number = techage.add_node(pos, "techage:chest_ta4")
+		meta:set_string("number", number)
+		meta:set_string("owner", placer:get_player_name())
+		meta:set_string("formspec", formspec4())
+		meta:set_string("infotext", I("TA4 Protected Chest").." "..number)
+	end,
+
+	can_dig = can_dig,
+	after_dig_node = after_dig_node,
+	allow_metadata_inventory_put = allow_metadata_inventory_put,
+	allow_metadata_inventory_take = allow_metadata_inventory_take,
+
+	paramtype2 = "facedir",
+	groups = {choppy=2, cracky=2, crumbly=2},
+	is_ground_content = false,
+	sounds = default.node_sound_wood_defaults(),
+})
+
+minetest.register_craft({
+	type = "shapeless",
+	output = "techage:chest_ta2",
+	recipe = {"default:chest", "techage:tubeS", "default:steel_ingot"}
+})
+
+techage.register_node("techage:chest_ta2", {"techage:chest_ta3", "techage:chest_ta4"}, {
+	on_pull_item = function(pos, in_dir, num)
+		local meta = minetest.get_meta(pos)
+		local inv = meta:get_inventory()
+		return techage.get_items(inv, "main", num)
+	end,
+	on_push_item = function(pos, in_dir, stack)
+		local meta = minetest.get_meta(pos)
+		local inv = meta:get_inventory()
+		return techage.put_items(inv, "main", stack)
+	end,
+	on_unpull_item = function(pos, in_dir, stack)
+		local meta = minetest.get_meta(pos)
+		local inv = meta:get_inventory()
+		return techage.put_items(inv, "main", stack)
+	end,
+	
+	on_recv_message = function(pos, topic, payload)
+		if topic == "state" then
+			local meta = minetest.get_meta(pos)
+			return techage.get_inv_state(meta, "main")
+		elseif topic == "player_action" then
+			local meta = minetest.get_meta(pos)
+			local number = meta:get_string("number")
+			return PlayerActions[number]
+		elseif topic == "set_numbers" then
+			if techage.check_numbers(payload) then
+				local meta = minetest.get_meta(pos)
+				meta:set_string("dest_num", payload)
+				local number = meta:get_string("number")
+				meta:set_string("infotext", I("TA2 Protected Chest").." "..number.." connected with "..payload)
+				return true
+			end
+		else
+			return "unsupported"
+		end
+	end,
+})	
diff --git a/basic_machines/distributor.lua b/basic_machines/distributor.lua
index 1f28df9..a27f0e3 100644
--- a/basic_machines/distributor.lua
+++ b/basic_machines/distributor.lua
@@ -21,7 +21,7 @@ local N = minetest.get_node
 local TRD = function(pos) return (minetest.registered_nodes[minetest.get_node(pos).name] or {}).techage end
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 local SRC_INV_SIZE = 8
diff --git a/basic_machines/gravelsieve.lua b/basic_machines/gravelsieve.lua
new file mode 100644
index 0000000..867cedf
--- /dev/null
+++ b/basic_machines/gravelsieve.lua
@@ -0,0 +1,266 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2019 Joachim Stolberg
+
+	LGPLv2.1+
+	See LICENSE.txt for more information
+	
+	TA2/TA3/TA4 Gravel Sieve, sieving gravel to find ores
+	
+]]--
+
+-- for lazy programmers
+local S = function(pos) if pos then return minetest.pos_to_string(pos) end end
+local P = minetest.string_to_pos
+local M = minetest.get_meta
+-- Techage Related Data
+local TRD = function(pos) return (minetest.registered_nodes[minetest.get_node(pos).name] or {}).techage end
+
+-- Load support for intllib.
+local MP = minetest.get_modpath("techage")
+local I,_ = dofile(MP.."/intllib.lua")
+
+local STANDBY_TICKS = 10
+local COUNTDOWN_TICKS = 10
+local CYCLE_TIME = 4
+
+local function formspec(self, pos, mem)
+	return "size[8,8]"..
+	default.gui_bg..
+	default.gui_bg_img..
+	default.gui_slots..
+	"list[context;src;0,0;3,3;]"..
+	"item_image[0,0;1,1;default:gravel]"..
+	"image[0,0;1,1;techage_form_mask.png]"..
+	"image[3.5,1;1,1;techage_form_arrow.png]"..
+	"image_button[3.5,2;1,1;".. self:get_state_button_image(mem) ..";state_button;]"..
+	"list[context;dst;5,0;3,3;]"..
+	"list[current_player;main;0,4;8,4;]"..
+	"listring[context;dst]"..
+	"listring[current_player;main]"..
+	"listring[context;src]"..
+	"listring[current_player;main]"..
+	default.get_hotbar_bg(0, 4)
+end
+
+local function allow_metadata_inventory_put(pos, listname, index, stack, player)
+	if minetest.is_protected(pos, player:get_player_name()) then
+		return 0
+	end
+	local meta = minetest.get_meta(pos)
+	local inv = meta:get_inventory()
+	if listname == "src" then
+		return stack:get_count()
+	elseif listname == "dst" then
+		return 0
+	end
+end
+
+local function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
+	local meta = minetest.get_meta(pos)
+	local inv = meta:get_inventory()
+	local stack = inv:get_stack(from_list, from_index)
+	return allow_metadata_inventory_put(pos, to_list, to_index, stack, player)
+end
+
+local function allow_metadata_inventory_take(pos, listname, index, stack, player)
+	if minetest.is_protected(pos, player:get_player_name()) then
+		return 0
+	end
+	return stack:get_count()
+end
+
+
+-- determine ore based on the calculated probability
+local function get_random_ore()
+	for ore, probability in pairs(techage.ore_probability) do
+		if math.random(probability) == 1 then
+			local item = ItemStack(ore)
+			return item
+		end
+	end
+end
+
+local function sieving(pos, trd, mem, inv)
+	local gravel = ItemStack("default:gravel")
+
+	if not inv:contains_item("src", gravel) then
+		trd.State:idle(pos, mem)
+		return
+	end
+	
+	local dst = get_random_ore()
+	if not dst then
+	    -- move gravel or sieved gravel to dst
+		mem.gravel_cnt = (mem.gravel_cnt or 0) + 1
+		if (mem.gravel_cnt % 2) == 0 then
+			dst = gravel
+		else
+			dst = ItemStack("techage:sieved_gravel")
+		end
+	end
+	if not inv:room_for_item("dst", dst) then
+		--trd.State:blocked(pos, mem)
+		trd.State:idle(pos, mem)
+		return
+	end
+		
+	inv:add_item("dst", dst)
+	inv:remove_item("src", gravel)
+	trd.State:keep_running(pos, mem, COUNTDOWN_TICKS)
+end
+
+local function keep_running(pos, elapsed)
+	local mem = tubelib2.get_mem(pos)
+	local trd = TRD(pos)
+	local inv = M(pos):get_inventory()
+	sieving(pos, trd, mem, inv)
+	return trd.State:is_active(mem)
+end
+
+local function on_receive_fields(pos, formname, fields, player)
+	if minetest.is_protected(pos, player:get_player_name()) then
+		return
+	end
+	local mem = tubelib2.get_mem(pos)
+	TRD(pos).State:state_button_event(pos, mem, fields)
+end
+
+local function can_dig(pos, player)
+	if minetest.is_protected(pos, player:get_player_name()) then
+		return false
+	end
+	local inv = M(pos):get_inventory()
+	return inv:is_empty("dst") and inv:is_empty("src")
+end
+
+
+local tiles = {}
+-- '#' will be replaced by the stage number
+-- '{power}' will be replaced by the power PNG
+tiles.pas = {
+	-- up, down, right, left, back, front
+	"techage_appl_sieve_top.png^techage_frame_ta#_top.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_outp.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_inp.png",
+	"techage_filling_ta#.png^techage_appl_sieve.png^techage_frame_ta#.png",
+	"techage_filling_ta#.png^techage_appl_sieve.png^techage_frame_ta#.png",
+}
+tiles.act = {
+	-- up, down, right, left, back, front
+	{
+		image = "techage_appl_sieve4_top.png^techage_frame4_ta#_top.png",
+		backface_culling = false,
+		animation = {
+			type = "vertical_frames",
+			aspect_w = 32,
+			aspect_h = 32,
+			length = 2.0,
+		},
+	},
+	"techage_filling_ta#.png^techage_frame_ta#.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_outp.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_inp.png",
+	"techage_filling_ta#.png^techage_appl_sieve.png^techage_frame_ta#.png",
+	"techage_filling_ta#.png^techage_appl_sieve.png^techage_frame_ta#.png",
+}
+tiles.def = {
+	-- up, down, right, left, back, front
+	"techage_appl_sieve_top.png^techage_frame_ta#_top.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_outp.png^techage_appl_defect.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_inp.png^techage_appl_defect.png",
+	"techage_filling_ta#.png^techage_appl_sieve.png^techage_frame_ta#.png^techage_appl_defect.png",
+	"techage_filling_ta#.png^techage_appl_sieve.png^techage_frame_ta#.png^techage_appl_defect.png",
+}
+
+local tubing = {
+	on_pull_item = function(pos, in_dir, num)
+		local meta = minetest.get_meta(pos)
+		if meta:get_int("pull_dir") == in_dir then
+			local inv = M(pos):get_inventory()
+			return techage.get_items(inv, "dst", num)
+		end
+	end,
+	on_push_item = function(pos, in_dir, stack)
+		local meta = minetest.get_meta(pos)
+		if meta:get_int("push_dir") == in_dir  or in_dir == 5 then
+			local inv = M(pos):get_inventory()
+			return techage.put_items(inv, "src", stack)
+		end
+	end,
+	on_unpull_item = function(pos, in_dir, stack)
+		local meta = minetest.get_meta(pos)
+		if meta:get_int("pull_dir") == in_dir then
+			local inv = M(pos):get_inventory()
+			return techage.put_items(inv, "dst", stack)
+		end
+	end,
+	on_recv_message = function(pos, topic, payload)
+		local resp = TRD(pos).State:on_receive_message(pos, topic, payload)
+		if resp then
+			return resp
+		else
+			return "unsupported"
+		end
+	end,
+	on_node_load = function(pos)
+		TRD(pos).State:on_node_load(pos)
+	end,
+	on_node_repair = function(pos)
+		return TRD(pos).State:on_node_repair(pos)
+	end,
+}
+
+local node_name_ta2, node_name_ta3, node_name_ta4 = 
+	techage.register_consumer("gravelsieve", I("Gravel Sieve"), tiles, {
+		drawtype = "nodebox",
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-8/16, -8/16, -8/16,  8/16, 8/16, -6/16},
+				{-8/16, -8/16,  6/16,  8/16, 8/16,  8/16},
+				{-8/16, -8/16, -8/16, -6/16, 8/16,  8/16},
+				{ 6/16, -8/16, -8/16,  8/16, 8/16,  8/16},
+				{-6/16, -8/16, -6/16,  6/16, 4/16,  6/16},
+			},
+		},
+		selection_box = {
+			type = "fixed",
+			fixed = {-8/16, -8/16, -8/16,   8/16, 8/16, 8/16},
+		},
+		cycle_time = CYCLE_TIME,
+		standby_ticks = STANDBY_TICKS,
+		has_item_meter = true,
+		aging_factor = 10,
+		formspec = formspec,
+		tubing = tubing,
+		after_place_node = function(pos, placer)
+			local inv = M(pos):get_inventory()
+			inv:set_size('src', 9)
+			inv:set_size('dst', 9)
+		end,
+		can_dig = can_dig,
+		node_timer = keep_running,
+		on_receive_fields = on_receive_fields,
+		allow_metadata_inventory_put = allow_metadata_inventory_put,
+		allow_metadata_inventory_move = allow_metadata_inventory_move,
+		allow_metadata_inventory_take = allow_metadata_inventory_take,
+		groups = {choppy=2, cracky=2, crumbly=2},
+		sounds = default.node_sound_wood_defaults(),
+		num_items = {0,1,2,4},
+		power_consumption = {0,2,3,4},
+	})
+
+minetest.register_craft({
+	output = node_name_ta2,
+	recipe = {
+		{"group:wood", "default:tin_ingot", "group:wood"},
+		{"tubelib:tubeS", "default:steel_ingot", "tubelib:tubeS"},
+		{"group:wood", "default:tin_ingot", "group:wood"},
+	},
+})
diff --git a/basic_machines/grinder.lua b/basic_machines/grinder.lua
index 646c3b9..2f947fa 100644
--- a/basic_machines/grinder.lua
+++ b/basic_machines/grinder.lua
@@ -20,7 +20,7 @@ local M = minetest.get_meta
 local TRD = function(pos) return (minetest.registered_nodes[minetest.get_node(pos).name] or {}).techage end
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 local STANDBY_TICKS = 10
@@ -141,8 +141,8 @@ tiles.pas = {
 	"techage_filling_ta#.png^techage_frame_ta#.png",
 	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_outp.png",
 	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_inp.png",
-	"techage_filling_ta#.png^{power}^techage_frame_ta#.png",
-	"techage_filling_ta#.png^{power}^techage_frame_ta#.png",
+	"techage_filling_ta#.png^techage_appl_grinder2.png^techage_frame_ta#.png",
+	"techage_filling_ta#.png^techage_appl_grinder2.png^techage_frame_ta#.png",
 }
 tiles.act = {
 	-- up, down, right, left, back, front
@@ -159,8 +159,8 @@ tiles.act = {
 	"techage_filling_ta#.png^techage_frame_ta#.png",
 	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_outp.png",
 	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_inp.png",
-	"techage_filling_ta#.png^{power}^techage_frame_ta#.png",
-	"techage_filling_ta#.png^{power}^techage_frame_ta#.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png",
 }
 tiles.def = {
 	-- up, down, right, left, back, front
@@ -168,8 +168,8 @@ tiles.def = {
 	"techage_filling_ta#.png^techage_frame_ta#.png",
 	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_outp.png^techage_appl_defect.png",
 	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_inp.png^techage_appl_defect.png",
-	"techage_filling_ta#.png^{power}^techage_frame_ta#.png^techage_appl_defect.png",
-	"techage_filling_ta#.png^{power}^techage_frame_ta#.png^techage_appl_defect.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_defect.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_defect.png",
 }
 
 local tubing = {
@@ -182,7 +182,7 @@ local tubing = {
 	end,
 	on_push_item = function(pos, in_dir, stack)
 		local meta = minetest.get_meta(pos)
-		if meta:get_int("push_dir") == in_dir then
+		if meta:get_int("push_dir") == in_dir or in_dir == 5 then
 			local inv = M(pos):get_inventory()
 			return techage.put_items(inv, "src", stack)
 		end
@@ -212,6 +212,21 @@ local tubing = {
 
 local node_name_ta2, node_name_ta3, node_name_ta4 = 
 	techage.register_consumer("grinder", I("Grinder"), tiles, {
+		drawtype = "nodebox",
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-8/16, -8/16, -8/16,  8/16, 8/16, -6/16},
+				{-8/16, -8/16,  6/16,  8/16, 8/16,  8/16},
+				{-8/16, -8/16, -8/16, -6/16, 8/16,  8/16},
+				{ 6/16, -8/16, -8/16,  8/16, 8/16,  8/16},
+				{-6/16, -8/16, -6/16,  6/16, 6/16,  6/16},
+			},
+		},
+		selection_box = {
+			type = "fixed",
+			fixed = {-8/16, -8/16, -8/16,   8/16, 8/16, 8/16},
+		},
 		cycle_time = CYCLE_TIME,
 		standby_ticks = STANDBY_TICKS,
 		has_item_meter = true,
diff --git a/basic_machines/pusher.lua b/basic_machines/pusher.lua
index 1fb6697..746ea89 100644
--- a/basic_machines/pusher.lua
+++ b/basic_machines/pusher.lua
@@ -30,7 +30,7 @@ local M = minetest.get_meta
 local TRD = function(pos) return (minetest.registered_nodes[minetest.get_node(pos).name] or {}).techage end
 local TRDN = function(node) return (minetest.registered_nodes[node.name] or {}).techage end
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 local STANDBY_TICKS = 10
@@ -64,6 +64,7 @@ end
 local function on_rightclick(pos, node, clicker)
 	local mem = tubelib2.get_mem(pos)
 	if not minetest.is_protected(pos, clicker:get_player_name()) then
+		print("on_rightclick", TRD(pos).State:is_active(mem), mem.techage_state)
 		if TRD(pos).State:is_active(mem) then
 			TRD(pos).State:stop(pos, mem)
 		else
@@ -77,190 +78,101 @@ local function after_dig_node(pos, oldnode, oldmetadata, digger)
 	TRDN(oldnode).State:after_dig_node(pos, oldnode, oldmetadata, digger)
 end
 
-local function register_pusher(stage, num_items)
-	local State = techage.NodeStates:new({
-		node_name_passive= "techage:ta"..stage.."_pusher",
-		node_name_active = "techage:ta"..stage.."_pusher_active",
-		node_name_defect = "techage:ta"..stage.."_pusher_defect",
-		infotext_name = "TA"..stage..I(" Pusher"),
+local tiles = {}
+-- '#' will be replaced by the stage number
+-- '{power}' will be replaced by the power PNG
+tiles.pas = {
+	"techage_filling_ta#.png^techage_frame_ta#_top.png^techage_appl_arrow.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_outp.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_inp.png",
+	"techage_appl_pusher.png^[transformR180]^techage_frame_ta#.png",
+	"techage_appl_pusher.png^techage_frame_ta#.png",
+}
+tiles.act = {
+	-- up, down, right, left, back, front
+	"techage_filling_ta#.png^techage_frame_ta#_top.png^techage_appl_arrow.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_outp.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_inp.png",
+	{
+		image = "techage_appl_pusher14.png^[transformR180]^techage_frame14_ta#.png",
+		backface_culling = false,
+		animation = {
+			type = "vertical_frames",
+			aspect_w = 32,
+			aspect_h = 32,
+			length = 2.0,
+		},
+	},
+	{
+		image = "techage_appl_pusher14.png^techage_frame14_ta#.png",
+		backface_culling = false,
+		animation = {
+			type = "vertical_frames",
+			aspect_w = 32,
+			aspect_h = 32,
+			length = 2.0,
+		},
+	},
+}
+tiles.def = {
+	-- up, down, right, left, back, front
+	"techage_filling_ta#.png^techage_frame_ta#_top.png^techage_appl_arrow.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_outp.png^techage_appl_defect.png",
+	"techage_filling_ta#.png^techage_frame_ta#.png^techage_appl_inp.png^techage_appl_defect.png",
+	"techage_appl_pusher.png^[transformR180]^techage_frame_ta#.png^techage_appl_defect.png",
+	"techage_appl_pusher.png^techage_frame_ta#.png^techage_appl_defect.png",
+}
+	
+local tubing = {
+	is_pusher = true, -- is a pulling/pushing node
+	
+	on_recv_message = function(pos, topic, payload)
+		local resp = TRD(pos).State:on_receive_message(pos, topic, payload)
+		if resp then
+			return resp
+		else
+			return "unsupported"
+		end
+	end,
+	on_node_load = function(pos)
+		TRD(pos).State:on_node_load(pos)
+	end,
+	on_node_repair = function(pos)
+		return TRD(pos).State:on_node_repair(pos)
+	end,
+}
+	
+local node_name_ta2, node_name_ta3, node_name_ta4 = 
+	techage.register_consumer("pusher", I("Pusher"), tiles, {
 		cycle_time = CYCLE_TIME,
 		standby_ticks = STANDBY_TICKS,
 		has_item_meter = true,
 		aging_factor = 10,
-	})
-
-	minetest.register_node("techage:ta"..stage.."_pusher", {
-		description = "TA"..stage..I(" Pusher"),
-		tiles = {
-			-- up, down, right, left, back, front
-			"techage_filling_ta"..stage..".png^techage_frame_ta"..stage.."_top.png^techage_appl_arrow.png",
-			"techage_filling_ta"..stage..".png^techage_frame_ta"..stage..".png",
-			"techage_filling_ta"..stage..".png^techage_frame_ta"..stage..".png^techage_appl_outp.png",
-			"techage_filling_ta"..stage..".png^techage_frame_ta"..stage..".png^techage_appl_inp.png",
-			"techage_appl_pusher.png^[transformR180]^techage_frame_ta"..stage..".png",
-			"techage_appl_pusher.png^techage_frame_ta"..stage..".png",
-		},
-
-		techage = {
-			State = State,
-			num_items = num_items,
-		},
-		
+		tubing = tubing,
 		after_place_node = function(pos, placer)
-			local mem = tubelib2.init_mem(pos)
+			local mem = tubelib2.get_mem(pos)
 			local meta = M(pos)
 			local node = minetest.get_node(pos)
 			meta:set_int("pull_dir", techage.side_to_outdir("L", node.param2))
 			meta:set_int("push_dir", techage.side_to_outdir("R", node.param2))
-			local number = "-"
-			if stage > 2 then
-				number = techage.add_node(pos, "techage:ta"..stage.."_pusher")
-			end
-			TRD(pos).State:node_init(pos, mem, number)
 		end,
 
 		on_rightclick = on_rightclick,
 		after_dig_node = after_dig_node,
-		on_timer = keep_running,
+		node_timer = keep_running,
 		on_rotate = screwdriver.disallow,
-
-		drop = "",
-		paramtype2 = "facedir",
+		
 		groups = {choppy=2, cracky=2, crumbly=2},
 		is_ground_content = false,
 		sounds = default.node_sound_wood_defaults(),
+		num_items = {0,2,6,18},
 	})
 
-	minetest.register_node("techage:ta"..stage.."_pusher_active", {
-		description = "TA"..stage..I(" Pusher"),
-		tiles = {
-			-- up, down, right, left, back, front
-			"techage_filling_ta"..stage..".png^techage_frame_ta"..stage.."_top.png^techage_appl_arrow.png",
-			"techage_filling_ta"..stage..".png^techage_frame_ta"..stage..".png",
-			"techage_filling_ta"..stage..".png^techage_frame_ta"..stage..".png^techage_appl_outp.png",
-			"techage_filling_ta"..stage..".png^techage_frame_ta"..stage..".png^techage_appl_inp.png",
-			{
-				image = "techage_appl_pusher14.png^[transformR180]^techage_frame14_ta"..stage..".png",
-				backface_culling = false,
-				animation = {
-					type = "vertical_frames",
-					aspect_w = 32,
-					aspect_h = 32,
-					length = 2.0,
-				},
-			},
-			{
-				image = "techage_appl_pusher14.png^techage_frame14_ta"..stage..".png",
-				backface_culling = false,
-				animation = {
-					type = "vertical_frames",
-					aspect_w = 32,
-					aspect_h = 32,
-					length = 2.0,
-				},
-			},
-		},
-
-		techage = {
-			State = State,
-			num_items = num_items,
-		},
-		
-		on_rightclick = on_rightclick,
-		after_dig_node = after_dig_node,
-		on_timer = keep_running,
-		on_rotate = screwdriver.disallow,
-		on_timer = keep_running,
-		
-		paramtype2 = "facedir",
-		diggable = false,
-		groups = {crumbly=0, not_in_creative_inventory=1},
-		is_ground_content = false,
-		sounds = default.node_sound_wood_defaults(),
-	})
-
-	minetest.register_node("techage:ta"..stage.."_pusher_defect", {
-		description = "TA"..stage.." Pusher",
-		tiles = {
-			-- up, down, right, left, back, front
-			"techage_filling_ta"..stage..".png^techage_frame_ta"..stage.."_top.png^techage_appl_arrow.png",
-			"techage_filling_ta"..stage..".png^techage_frame_ta"..stage..".png",
-			"techage_filling_ta"..stage..".png^techage_frame_ta"..stage..".png^techage_appl_outp.png^techage_appl_defect.png",
-			"techage_filling_ta"..stage..".png^techage_frame_ta"..stage..".png^techage_appl_inp.png^techage_appl_defect.png",
-			"techage_appl_pusher.png^[transformR180]^techage_frame_ta"..stage..".png^techage_appl_defect.png",
-			"techage_appl_pusher.png^techage_frame_ta"..stage..".png^techage_appl_defect.png",
-		},
-
-		techage = {
-			State = State,
-		},
-		
-		after_place_node = function(pos, placer)
-			local mem = tubelib2.get_init(pos)
-			local number = "-"
-			if stage > 2 then
-				number = techage.add_node(pos, "techage:ta"..stage.."_pusher")
-			end
-			TRD(pos).State:node_init(pos, mem, number)
-			TRD(pos).State:defect(pos, mem)
-		end,
-
-		after_dig_node = function(pos)
-			techage.remove_node(pos)
-		end,
-		
-		on_rotate = screwdriver.disallow,
-
-		paramtype2 = "facedir",
-		groups = {choppy=2, cracky=2, crumbly=2, not_in_creative_inventory=1},
-		is_ground_content = false,
-		sounds = default.node_sound_wood_defaults(),
-	})
-
-	if stage == 2 then
-		techage.register_node("techage:ta"..stage.."_pusher", 
-			{"techage:ta"..stage.."_pusher_active", "techage:ta"..stage.."_pusher_defect"}, {
-			is_pusher = true, -- is a pulling/pushing node
-			
-			on_recv_message = function(pos, topic, payload)
-				return "unsupported"
-			end,
-			on_node_load = function(pos)
-				TRD(pos).State:on_node_load(pos)
-			end,
-			on_node_repair = function(pos)
-				return TRD(pos).State:on_node_repair(pos)
-			end,
-		})	
-	else
-		techage.register_node("techage:ta"..stage.."_pusher", 
-			{"techage:ta"..stage.."_pusher_active", "techage:ta"..stage.."_pusher_defect"}, {
-			is_pusher = true, -- is a pulling/pushing node
-			
-			on_recv_message = function(pos, topic, payload)
-				local resp = TRD(pos).State:on_receive_message(pos, topic, payload)
-				if resp then
-					return resp
-				else
-					return "unsupported"
-				end
-			end,
-			on_node_load = function(pos)
-				TRD(pos).State:on_node_load(pos)
-			end,
-			on_node_repair = function(pos)
-				return TRD(pos).State:on_node_repair(pos)
-			end,
-		})	
-	end
-end
-
-register_pusher(2, 2)
-register_pusher(3, 6)
-register_pusher(4, 18)
-
 minetest.register_craft({
-	output = "techage:ta2_pusher 2",
+	output = node_name_ta2.." 2",
 	recipe = {
 		{"group:wood", 		"wool:dark_green",   	"group:wood"},
 		{"tubelib:tubeS", 	"default:mese_crystal",	"tubelib:tubeS"},
diff --git a/basis/consumer.lua b/basis/consumer.lua
index 740c17c..36e4eab 100644
--- a/basis/consumer.lua
+++ b/basis/consumer.lua
@@ -29,7 +29,7 @@ local TRDN = function(node) return (minetest.registered_nodes[node.name] or {}).
 local consumer = techage.consumer
 
 local function valid_power_dir(pos, power_dir, in_dir)
-	return power_dir == in_dir or power_dir == tubelib2.Turn180Deg[in_dir]
+	return true
 end
 
 local function start_node(pos, mem, state)
@@ -72,27 +72,24 @@ function techage.register_consumer(base_name, inv_name, tiles, tNode)
 		local name_inv = "TA"..stage.." "..inv_name
 		names[#names+1] = name_pas
 		
-		local power_network = techage.Axle
 		local on_recv_message = tNode.tubing.on_recv_message
-		local power_png = 'techage_axle_clutch.png'
-		
 		if stage > 2 then
-			power_network = techage.ElectricCable
 			on_recv_message = function(pos, topic, payload)
 				return "unsupported"
 			end
-			power_png = 'techage_appl_hole_electric.png'
 		end
 		
-		-- No power needed?
-		if not tNode.power_consumption then
-			start_node = nil
-			stop_node = nil
-			turn_on_clbk = nil
-			valid_power_dir = nil
-			power_network = nil
-			tNode.power_consumption = {0,0,0,0} -- needed later
-		else
+		local power_network
+		local power_png = 'techage_axle_clutch.png'
+		local power_used = tNode.power_consumption ~= nil
+		-- power needed?
+		if power_used then
+			if stage > 2 then
+				power_network = techage.ElectricCable
+				power_png = 'techage_appl_hole_electric.png'
+			else
+				power_network = techage.Axle
+			end
 			power_network:add_secondary_node_names({name_pas, name_act})
 		end
 	
@@ -106,18 +103,18 @@ function techage.register_consumer(base_name, inv_name, tiles, tNode)
 			has_item_meter = tNode.has_item_meter,
 			aging_factor = tNode.aging_factor,
 			formspec_func = tNode.formspec,
-			start_node = start_node,
-			stop_node = stop_node,
+			start_node = power_used and start_node or nil,
+			stop_node = power_used and stop_node or nil,
 		})
 		local tTechage = {
 			State = tState,
 			num_items = tNode.num_items[stage],
-			turn_on = turn_on_clbk,
+			turn_on = power_used and turn_on_clbk or nil,
 			read_power_consumption = consumer.read_power_consumption,
-			power_network = power_network,
+			power_network = power_used and power_network or nil,
 			power_side = "F",
-			valid_power_dir = valid_power_dir,
-			power_consumption = tNode.power_consumption[stage],
+			valid_power_dir = power_used and valid_power_dir or nil,
+			power_consumption = power_used and tNode.power_consumption[stage] or {0,0,0,0},
 		}
 		
 		tNode.groups.not_in_creative_inventory = 0
@@ -126,6 +123,9 @@ function techage.register_consumer(base_name, inv_name, tiles, tNode)
 			description = name_inv,
 			tiles = prepare_tiles(tiles.pas, stage, power_png),
 			techage = tTechage,
+			drawtype = tNode.drawtype,
+			node_box = tNode.node_box,
+			selection_box = tNode.selection_box,
 			
 			after_place_node = function(pos, placer, itemstack, pointed_thing)
 				local mem
@@ -164,6 +164,7 @@ function techage.register_consumer(base_name, inv_name, tiles, tNode)
 			on_rotate = screwdriver.disallow,
 			on_timer = tNode.node_timer,
 			on_receive_fields = tNode.on_receive_fields,
+			on_rightclick = tNode.on_rightclick,
 			allow_metadata_inventory_put = tNode.allow_metadata_inventory_put,
 			allow_metadata_inventory_move = tNode.allow_metadata_inventory_move,
 			allow_metadata_inventory_take = tNode.allow_metadata_inventory_take,
@@ -184,11 +185,15 @@ function techage.register_consumer(base_name, inv_name, tiles, tNode)
 			description = name_inv,
 			tiles = prepare_tiles(tiles.act, stage, power_png),
 			techage = tTechage,
+			drawtype = tNode.drawtype,
+			node_box = tNode.node_box,
+			selection_box = tNode.selection_box,
 			
 			after_tube_update = consumer.after_tube_update,
 			on_rotate = screwdriver.disallow,
 			on_timer = tNode.node_timer,
 			on_receive_fields = tNode.on_receive_fields,
+			on_rightclick = tNode.on_rightclick,
 			allow_metadata_inventory_put = tNode.allow_metadata_inventory_put,
 			allow_metadata_inventory_move = tNode.allow_metadata_inventory_move,
 			allow_metadata_inventory_take = tNode.allow_metadata_inventory_take,
@@ -207,6 +212,9 @@ function techage.register_consumer(base_name, inv_name, tiles, tNode)
 			description = name_inv,
 			tiles = prepare_tiles(tiles.def, stage, power_png),
 			techage = tTechage,
+			drawtype = tNode.drawtype,
+			node_box = tNode.node_box,
+			selection_box = tNode.selection_box,
 			
 			after_place_node = function(pos, placer, itemstack, pointed_thing)
 				local mem = consumer.after_place_node(pos, placer)
@@ -227,6 +235,7 @@ function techage.register_consumer(base_name, inv_name, tiles, tNode)
 			after_tube_update = consumer.after_tube_update,
 			on_rotate = screwdriver.disallow,
 			on_receive_fields = tNode.on_receive_fields,
+			on_rightclick = tNode.on_rightclick,
 			allow_metadata_inventory_put = tNode.allow_metadata_inventory_put,
 			allow_metadata_inventory_move = tNode.allow_metadata_inventory_move,
 			allow_metadata_inventory_take = tNode.allow_metadata_inventory_take,
diff --git a/basis/trowel.lua b/basis/trowel.lua
index 344be43..3553530 100644
--- a/basis/trowel.lua
+++ b/basis/trowel.lua
@@ -18,9 +18,11 @@ local P = minetest.string_to_pos
 local M = minetest.get_meta
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
+-- used by other tools: dug_node[player_name] = pos
+techage.dug_node = {}
 
 -- Overridden method of tubelib2!
 function techage.get_primary_node_param2(pos, dir)
@@ -102,11 +104,14 @@ minetest.register_node("techage:trowel", {
 })
 
 minetest.register_on_dignode(function(pos, oldnode, digger)
+	if not digger then return end
 	-- If hidden nodes are arround, the removed one was probably
 	-- a hidden node, too.
 	if other_hidden_nodes(pos, "techage_hidden_nodename") then
 		-- test both hidden networks
 		techage.ElectricCable:after_dig_node(pos, oldnode, digger)
 		techage.BiogasPipe:after_dig_node(pos, oldnode, digger)
+	else
+		techage.dug_node[digger:get_player_name()] = pos
 	end
 end)
diff --git a/electric/consumer.lua b/electric/consumer.lua
index 0cf38c9..7a94db0 100644
--- a/electric/consumer.lua
+++ b/electric/consumer.lua
@@ -4,7 +4,7 @@ local P = minetest.string_to_pos
 local M = minetest.get_meta
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 local POWER_CONSUMPTION = 2
diff --git a/electric/electric_cable.lua b/electric/electric_cable.lua
index b0ecea9..2fe500b 100644
--- a/electric/electric_cable.lua
+++ b/electric/electric_cable.lua
@@ -18,7 +18,7 @@ local P = minetest.string_to_pos
 local M = minetest.get_meta
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 
diff --git a/electric/generator.lua b/electric/generator.lua
index b5be9ad..20303e4 100644
--- a/electric/generator.lua
+++ b/electric/generator.lua
@@ -4,7 +4,7 @@ local P = minetest.string_to_pos
 local M = minetest.get_meta
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 local STANDBY_TICKS = 4
diff --git a/fermenter/biogas_pipe.lua b/fermenter/biogas_pipe.lua
index e9436f4..1854203 100644
--- a/fermenter/biogas_pipe.lua
+++ b/fermenter/biogas_pipe.lua
@@ -18,7 +18,7 @@ local P = minetest.string_to_pos
 local M = minetest.get_meta
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 
diff --git a/init.lua b/init.lua
index bccecc1..149d58f 100644
--- a/init.lua
+++ b/init.lua
@@ -6,6 +6,7 @@ techage = {
 techage.max_num_forceload_blocks = tonumber(minetest.setting_get("techage_max_num_forceload_blocks")) or 12
 techage.basalt_stone_enabled = minetest.setting_get("techage_basalt_stone_enabled") == "true"
 techage.machine_aging_value = tonumber(minetest.setting_get("techage_machine_aging_value")) or 100
+techage.ore_rarity = tonumber(minetest.setting_get("techage_ore_rarity")) or 1
 
 
 local MP = minetest.get_modpath("techage")
@@ -21,6 +22,11 @@ dofile(MP.."/basis/tubes.lua")  -- tubelib replacement
 dofile(MP.."/basis/command.lua")  -- tubelib replacement
 dofile(MP.."/basis/consumer.lua")  -- consumer base model
 
+-- Iron Age
+dofile(MP.."/iron_age/gravelsieve.lua")
+dofile(MP.."/iron_age/hammer.lua")
+
+
 -- Steam Engine
 dofile(MP.."/steam_engine/drive_axle.lua")
 dofile(MP.."/steam_engine/steam_pipe.lua")
@@ -37,10 +43,13 @@ dofile(MP.."/electric/test.lua")
 dofile(MP.."/electric/generator.lua")
 dofile(MP.."/electric/consumer.lua")
 
+-- Basic Machines
 dofile(MP.."/basic_machines/pusher.lua")
 dofile(MP.."/basic_machines/legacy_nodes.lua")
 dofile(MP.."/basic_machines/grinder.lua")
 dofile(MP.."/basic_machines/distributor.lua")
+dofile(MP.."/basic_machines/gravelsieve.lua")
+dofile(MP.."/basic_machines/chest.lua")
 
 
 --dofile(MP.."/fermenter/biogas_pipe.lua")
diff --git a/intllib.lua b/intllib.lua
new file mode 100644
index 0000000..6669d72
--- /dev/null
+++ b/intllib.lua
@@ -0,0 +1,45 @@
+
+-- Fallback functions for when `intllib` is not installed.
+-- Code released under Unlicense <http://unlicense.org>.
+
+-- Get the latest version of this file at:
+--   https://raw.githubusercontent.com/minetest-mods/intllib/master/lib/intllib.lua
+
+local function format(str, ...)
+	local args = { ... }
+	local function repl(escape, open, num, close)
+		if escape == "" then
+			local replacement = tostring(args[tonumber(num)])
+			if open == "" then
+				replacement = replacement..close
+			end
+			return replacement
+		else
+			return "@"..open..num..close
+		end
+	end
+	return (str:gsub("(@?)@(%(?)(%d+)(%)?)", repl))
+end
+
+local gettext, ngettext
+if minetest.get_modpath("intllib") then
+	if intllib.make_gettext_pair then
+		-- New method using gettext.
+		gettext, ngettext = intllib.make_gettext_pair()
+	else
+		-- Old method using text files.
+		gettext = intllib.Getter()
+	end
+end
+
+-- Fill in missing functions.
+
+gettext = gettext or function(msgid, ...)
+	return format(msgid, ...)
+end
+
+ngettext = ngettext or function(msgid, msgid_plural, n, ...)
+	return format(n==1 and msgid or msgid_plural, ...)
+end
+
+return gettext, ngettext
diff --git a/iron_age/gravelsieve.lua b/iron_age/gravelsieve.lua
new file mode 100644
index 0000000..4ae7461
--- /dev/null
+++ b/iron_age/gravelsieve.lua
@@ -0,0 +1,376 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2019 Joachim Stolberg
+
+	LGPLv2.1+
+	See LICENSE.txt for more information
+	
+	TA2/TA3/TA4 Gravel Sieve, sieving gravel to find ores
+	
+]]--
+
+-- for lazy programmers
+local S = function(pos) if pos then return minetest.pos_to_string(pos) end end
+local P = minetest.string_to_pos
+local M = minetest.get_meta
+-- Techage Related Data
+local TRD = function(pos) return (minetest.registered_nodes[minetest.get_node(pos).name] or {}).techage end
+
+-- Load support for intllib.
+local MP = minetest.get_modpath("techage")
+local I,_ = dofile(MP.."/intllib.lua")
+
+-- Increase the probability over the natural occurrence
+local PROBABILITY_FACTOR = 3
+
+-- Ore probability table  (1/n)
+techage.ore_probability = {
+}
+
+-- collect all registered ores and calculate the probability
+local function add_ores()
+	for _,item in  pairs(minetest.registered_ores) do
+		if minetest.registered_nodes[item.ore] then
+			local drop = minetest.registered_nodes[item.ore].drop
+			if type(drop) == "string"
+			and drop ~= item.ore
+			and drop ~= ""
+			and item.ore_type == "scatter"
+			and item.wherein == "default:stone"
+			and item.clust_scarcity ~= nil and item.clust_scarcity > 0 
+			and item.clust_num_ores ~= nil and item.clust_num_ores > 0 
+			and item.y_max ~= nil and item.y_min ~= nil then
+				local probability = (techage.ore_rarity / PROBABILITY_FACTOR) * item.clust_scarcity /
+						(item.clust_num_ores * ((item.y_max - item.y_min) / 65535))
+				if techage.ore_probability[drop] == nil then
+					techage.ore_probability[drop] = probability
+				else
+					-- harmonic sum
+					techage.ore_probability[drop] = 1.0 / ((1.0 / techage.ore_probability[drop]) +
+							(1.0 / probability))
+				end
+			end
+		end
+	end
+	local overall_probability = 0.0
+	for name,probability in pairs(techage.ore_probability) do
+		minetest.log("info", string.format("[techage] %-32s %u", name, probability))
+		overall_probability = overall_probability + 1.0/probability
+	end
+	minetest.log("info", string.format("[techage] Overall probability %g", overall_probability))
+end	
+
+minetest.after(1, add_ores)
+
+local sieve_formspec =
+	"size[8,8]"..
+	default.gui_bg..
+	default.gui_bg_img..
+	default.gui_slots..
+	"list[context;src;1,1.5;1,1;]"..
+	"image[3,1.5;1,1;techage_form_arrow.png]"..
+	"list[context;dst;4,0;4,4;]"..
+	"list[current_player;main;0,4.2;8,4;]"..
+	"listring[context;dst]"..
+	"listring[current_player;main]"..
+	"listring[context;src]"..
+	"listring[current_player;main]"
+
+
+local function allow_metadata_inventory_put(pos, listname, index, stack, player)
+	if minetest.is_protected(pos, player:get_player_name()) then
+		return 0
+	end
+	local meta = minetest.get_meta(pos)
+	local inv = meta:get_inventory()
+	if listname == "src" then
+		return stack:get_count()
+	elseif listname == "dst" then
+		return 0
+	end
+end
+
+local function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
+	local meta = minetest.get_meta(pos)
+	local inv = meta:get_inventory()
+	local stack = inv:get_stack(from_list, from_index)
+	return allow_metadata_inventory_put(pos, to_list, to_index, stack, player)
+end
+
+local function allow_metadata_inventory_take(pos, listname, index, stack, player)
+	if minetest.is_protected(pos, player:get_player_name()) then
+		return 0
+	end
+	return stack:get_count()
+end
+
+-- handle the sieve animation
+local function swap_node(pos, meta, start)
+	local node = minetest.get_node(pos)
+	local idx = meta:get_int("idx")
+	if start then
+		if idx == 3 then
+			idx = 0
+		end
+	else
+		idx = (idx + 1) % 4
+	end
+	meta:set_int("idx", idx)
+	node.name = meta:get_string("node_name")..idx
+	minetest.swap_node(pos, node)
+	return idx == 3
+end
+
+-- place ores to dst according to the calculated probability
+local function random_ore(inv, src)
+	local num
+	for ore, probability in pairs(techage.ore_probability) do
+		if math.random(probability) == 1 then
+			local item = ItemStack(ore)
+			if inv:room_for_item("dst", item) then
+				inv:add_item("dst", item)
+				return true     -- ore placed
+			end
+		end
+	end
+	return false    -- gravel has to be moved
+end
+
+
+local function add_gravel_to_dst(meta, inv)
+	-- maintain a counter for gravel kind selection
+	local gravel_cnt = meta:get_int("gravel_cnt") + 1
+	meta:set_int("gravel_cnt", gravel_cnt)
+
+	if (gravel_cnt % 2) == 0 then  -- gravel or sieved gravel?
+		inv:add_item("dst", ItemStack("default:gravel"))  -- add to dest
+	else
+		inv:add_item("dst", ItemStack("techage:sieved_gravel")) -- add to dest
+	end
+end
+
+
+-- move gravel and ores to dst
+local function move_src2dst(meta, pos, inv, src, dst)
+	if inv:room_for_item("dst", dst) and inv:contains_item("src", src) then
+		local res = swap_node(pos, meta, false)
+		if res then                                     -- time to move one item?
+			if src:get_name() == "default:gravel" then  -- will we find ore?
+				if not random_ore(inv, src) then        -- no ore found?
+					add_gravel_to_dst(meta, inv)
+				end
+			else
+				inv:add_item("dst", ItemStack("techage:sieved_gravel")) -- add to dest
+			end
+			inv:remove_item("src", src)
+		end
+		return true  -- process finished
+	end
+	return false -- process still running
+end
+
+-- timer callback, alternatively called by on_punch
+local function sieve_node_timer(pos, elapsed)
+	local meta = minetest.get_meta(pos)
+	local inv = meta:get_inventory()
+	local gravel = ItemStack("default:gravel")
+	local gravel_sieved = ItemStack("techage:sieved_gravel")
+
+	if move_src2dst(meta, pos, inv, gravel) then
+		return true
+	elseif move_src2dst(meta, pos, inv, gravel_sieved) then
+		return true
+	else
+		minetest.get_node_timer(pos):stop()
+		return false
+	end
+end
+
+
+for idx = 0,4 do
+	local nodebox_data = {
+		{ -8/16, -8/16, -8/16,   8/16, 4/16, -6/16 },
+		{ -8/16, -8/16,  6/16,   8/16, 4/16,  8/16 },
+		{ -8/16, -8/16, -8/16,  -6/16, 4/16,  8/16 },
+		{  6/16, -8/16, -8/16,   8/16, 4/16,  8/16 },
+		{ -6/16, -2/16, -6/16,  6/16, 8/16, 6/16 },
+	}
+	nodebox_data[5][5] = (8 - 2*idx) / 16
+
+	local node_name
+	local description
+	local tiles_data
+	local tube_info
+	local not_in_creative_inventory
+	node_name = "techage:sieve"
+	description = "Gravel Sieve"
+	tiles_data = {
+		-- up, down, right, left, back, front
+		"techage_handsieve_gravel.png",
+		"techage_handsieve_gravel.png",
+		"techage_handsieve_sieve.png",
+		"techage_handsieve_sieve.png",
+		"techage_handsieve_sieve.png",
+		"techage_handsieve_sieve.png",
+	}
+
+	if idx == 3 then
+		tiles_data[1] = "techage_handsieve_top.png"
+		not_in_creative_inventory = 0
+	else
+		not_in_creative_inventory = 1
+	end
+
+
+	minetest.register_node(node_name..idx, {
+		description = description,
+		tiles = tiles_data,
+		drawtype = "nodebox",
+        drop = node_name,
+		
+		tube = tube_info,     --  NEW
+		
+		node_box = {
+			type = "fixed",
+			fixed = nodebox_data,
+		},
+		selection_box = {
+			type = "fixed",
+			fixed = { -8/16, -8/16, -8/16,   8/16, 4/16, 8/16 },
+		},
+
+		on_timer = sieve_node_timer,
+
+		on_construct = function(pos)
+			local meta = minetest.get_meta(pos)
+			meta:set_int("idx", idx)        -- for the 4 sieve phases
+			meta:set_int("gravel_cnt", 0)   -- counter to switch between gravel and sieved gravel
+			meta:set_string("node_name", node_name)
+			meta:set_string("formspec", sieve_formspec)
+			local inv = meta:get_inventory()
+			inv:set_size('src', 1)
+			inv:set_size('dst', 16)
+		end,
+		
+		after_place_node = function(pos, placer)
+			local meta = minetest.get_meta(pos)
+			meta:set_string("infotext", I("TA1 Gravel Sieve"))
+		end,
+			
+		on_metadata_inventory_move = function(pos)
+			local meta = minetest.get_meta(pos)
+			swap_node(pos, meta, true)
+		end,
+
+		on_metadata_inventory_take = function(pos)
+			local meta = minetest.get_meta(pos)
+			local inv = meta:get_inventory()
+			if inv:is_empty("src") then
+				-- sieve should be empty
+				meta:set_int("idx", 2)
+				swap_node(pos, meta, false)
+				meta:set_int("gravel_cnt", 0)
+			end
+		end,
+
+		on_metadata_inventory_put = function(pos)
+			local meta = minetest.get_meta(pos)
+			swap_node(pos, meta, true)
+		end,
+
+		on_punch = function(pos, node, puncher, pointed_thing)
+			local meta = minetest.get_meta(pos)
+			local inv = meta:get_inventory()
+			if inv:is_empty("dst") and inv:is_empty("src") then
+				minetest.node_punch(pos, node, puncher, pointed_thing)
+			else
+				sieve_node_timer(pos, 0)
+			end
+		end,
+
+		on_dig = function(pos, node, puncher, pointed_thing)
+			local meta = minetest.get_meta(pos)
+			local inv = meta:get_inventory()
+			if inv:is_empty("dst") and inv:is_empty("src") then
+				minetest.node_dig(pos, node, puncher, pointed_thing)
+			end
+		end,
+
+		allow_metadata_inventory_put = allow_metadata_inventory_put,
+		allow_metadata_inventory_move = allow_metadata_inventory_move,
+		allow_metadata_inventory_take = allow_metadata_inventory_take,
+
+		paramtype = "light",
+		sounds = default.node_sound_wood_defaults(),
+		paramtype2 = "facedir",
+		sunlight_propagates = true,
+		is_ground_content = false,
+		groups = {choppy=2, cracky=1, not_in_creative_inventory=not_in_creative_inventory},
+		drop = node_name.."3",
+	})
+end
+
+minetest.register_node("techage:sieved_gravel", {
+	description = I("Sieved Gravel"),
+	tiles = {"default_gravel.png"},
+	groups = {crumbly=2, falling_node=1, not_in_creative_inventory=1},
+	sounds = default.node_sound_gravel_defaults(),
+})
+
+minetest.register_node("techage:compressed_gravel", {
+	description = I("Compressed Gravel"),
+	tiles = {"techage_compressed_gravel.png"},
+	groups = {cracky=2, crumbly = 2, cracky = 2},
+	sounds = default.node_sound_gravel_defaults(),
+})
+
+minetest.register_craft({
+	output = "techage:sieve",
+	recipe = {
+		{"group:wood", "",                      "group:wood"},
+		{"group:wood", "default:steel_ingot",   "group:wood"},
+		{"group:wood", "",                      "group:wood"},
+	},
+})
+
+minetest.register_craft({
+	output = "techage:auto_sieve",
+	type = "shapeless",
+	recipe = {
+		"techage:sieve", "default:mese_crystal",  "default:mese_crystal",
+	},
+})
+
+minetest.register_craft({
+	output = "techage:compressed_gravel",
+	recipe = {
+		{"techage:sieved_gravel", "techage:sieved_gravel"},
+		{"techage:sieved_gravel", "techage:sieved_gravel"},
+	},
+})
+
+minetest.register_craft({
+	type = "cooking",
+	output = "default:cobble",
+	recipe = "techage:compressed_gravel",
+	cooktime = 10,
+})
+
+minetest.register_alias("techage:sieve", "techage:sieve3")
+minetest.register_alias("techage:auto_sieve", "techage:auto_sieve3")
+
+-- adaption to Circular Saw
+--if minetest.get_modpath("moreblocks") then
+	
+--	stairsplus:register_all("techage", "compressed_gravel", "techage:compressed_gravel", {
+--		description= I("Compressed Gravel"),
+--		groups={cracky=2, crumbly=2, choppy=2, not_in_creative_inventory=1},
+--		tiles = {"techage_compressed_gravel.png"},
+--		sounds = default.node_sound_stone_defaults(),
+--	})
+--end
+
+
diff --git a/iron_age/hammer.lua b/iron_age/hammer.lua
new file mode 100644
index 0000000..62a12a6
--- /dev/null
+++ b/iron_age/hammer.lua
@@ -0,0 +1,141 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2019 Joachim Stolberg
+
+	LGPLv2.1+
+	See LICENSE.txt for more information
+	
+	Hammer to convert stone into gravel
+	
+]]--
+
+-- Load support for intllib.
+local MP = minetest.get_modpath("techage")
+local I,_ = dofile(MP.."/intllib.lua")
+
+local function handler(player_name, node, itemstack, digparams)
+	local pos = techage.dug_node[player_name]
+	if not pos then return end
+
+	if minetest.is_protected(pos, player_name) then
+		minetest.record_protection_violation(pos, player_name)
+		return
+	end
+
+	if minetest.get_item_group(node.name, "stone") > 0 then
+		node.name = "default:gravel"
+		minetest.swap_node(pos, node)
+	end
+end
+
+minetest.register_tool("techage:hammer_bronze", {
+	description = I("Bronze Hammer (converts stone into gravel)"),
+	inventory_image = "techage_tool_hammer_bronze.png",
+	tool_capabilities = {
+		full_punch_interval = 1.0,
+		max_drop_level=1,
+		groupcaps={
+			cracky = {times={[1]=5.00, [2]=2.0, [3]=1.0}, uses=30, maxlevel=2},
+		},
+		damage_groups = {fleshy=4},
+	},
+	sound = {breaks = "default_tool_breaks"},
+	after_use = function(itemstack, user, node, digparams)
+		minetest.after(0.05, handler, user:get_player_name(), node)
+		itemstack:add_wear(digparams.wear)
+		return itemstack
+	end,
+})
+
+minetest.register_tool("techage:hammer_steel", {
+	description = I("Steel Hammer (converts stone into gravel)"),
+	inventory_image = "techage_tool_hammer_steel.png",
+	tool_capabilities = {
+		full_punch_interval = 1.0,
+		max_drop_level=1,
+		groupcaps={
+			cracky = {times={[1]=4.00, [2]=1.60, [3]=0.80}, uses=30, maxlevel=2},
+		},
+		damage_groups = {fleshy=4},
+	},
+	sound = {breaks = "default_tool_breaks"},
+	after_use = function(itemstack, user, node, digparams)
+		minetest.after(0.05, handler, user:get_player_name(), node)
+		itemstack:add_wear(digparams.wear)
+		return itemstack
+	end,
+})
+
+minetest.register_tool("techage:hammer_mese", {
+	description = I("Mese Hammer (converts stone into gravel)"),
+	inventory_image = "techage_tool_hammer_mese.png",
+	tool_capabilities = {
+		full_punch_interval = 0.9,
+		max_drop_level=3,
+		groupcaps={
+			cracky = {times={[1]=2.4, [2]=1.2, [3]=0.60}, uses=40, maxlevel=3},
+		},
+		damage_groups = {fleshy=5},
+	},
+	sound = {breaks = "default_tool_breaks"},
+	after_use = function(itemstack, user, node, digparams)
+		minetest.after(0.05, handler, user:get_player_name(), node)
+		itemstack:add_wear(digparams.wear)
+		return itemstack
+	end,
+})
+
+minetest.register_tool("techage:hammer_diamond", {
+	description = I("Diamond Hammer (converts stone into gravel)"),
+	inventory_image = "techage_tool_hammer_diamond.png",
+	tool_capabilities = {
+		full_punch_interval = 0.9,
+		max_drop_level=3,
+		groupcaps={
+			cracky = {times={[1]=2.0, [2]=1.0, [3]=0.50}, uses=40, maxlevel=3},
+		},
+		damage_groups = {fleshy=5},
+	},
+	sound = {breaks = "default_tool_breaks"},
+	after_use = function(itemstack, user, node, digparams)
+		minetest.after(0.05, handler, user:get_player_name(), node)
+		itemstack:add_wear(digparams.wear)
+		return itemstack
+	end,
+})
+
+minetest.register_craft({
+	output = "techage:hammer_bronze",
+	recipe = {
+		{"default:bronze_ingot", "group:stick", "default:bronze_ingot"},
+		{"default:bronze_ingot", "group:stick", "default:bronze_ingot"},
+		{"", "group:stick", ""},
+	}
+})
+minetest.register_craft({
+	output = "techage:hammer_steel",
+	recipe = {
+		{"default:steel_ingot", "group:stick", "default:steel_ingot"},
+		{"default:steel_ingot", "group:stick", "default:steel_ingot"},
+		{"", "group:stick", ""},
+	}
+})
+minetest.register_craft({
+	output = "techage:hammer_mese",
+	recipe = {
+		{"default:mese_crystal", "group:stick", "default:mese_crystal"},
+		{"default:mese_crystal", "group:stick", "default:mese_crystal"},
+		{"", "group:stick", ""},
+	}
+})
+minetest.register_craft({
+	output = "techage:hammer_diamond",
+	recipe = {
+		{"default:diamond", "group:stick", "default:diamond"},
+		{"default:diamond", "group:stick", "default:diamond"},
+		{"", "group:stick", ""},
+	}
+})
diff --git a/mod.conf b/mod.conf
index 6f5624b..95386aa 100644
--- a/mod.conf
+++ b/mod.conf
@@ -1 +1,3 @@
-name = techage
\ No newline at end of file
+name = techage
+depends = default, tubelib2, basic_materials
+description = Hello World!
\ No newline at end of file
diff --git a/steam_engine/battery.lua b/steam_engine/battery.lua
index 5a194d1..8feac0e 100644
--- a/steam_engine/battery.lua
+++ b/steam_engine/battery.lua
@@ -4,7 +4,7 @@ local P = minetest.string_to_pos
 local M = minetest.get_meta
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 local STANDBY_TICKS = 4
diff --git a/steam_engine/boiler.lua b/steam_engine/boiler.lua
index d01e2ec..c3e669c 100644
--- a/steam_engine/boiler.lua
+++ b/steam_engine/boiler.lua
@@ -18,7 +18,7 @@ local P = minetest.string_to_pos
 local M = minetest.get_meta
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 local CYCLE_TIME = 4
diff --git a/steam_engine/cylinder.lua b/steam_engine/cylinder.lua
index f0edf35..72e0334 100644
--- a/steam_engine/cylinder.lua
+++ b/steam_engine/cylinder.lua
@@ -18,7 +18,7 @@ local P = minetest.string_to_pos
 local M = minetest.get_meta
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 local POWER_CONSUMPTION = 8
diff --git a/steam_engine/drive_axle.lua b/steam_engine/drive_axle.lua
index c7d4cd3..3530330 100644
--- a/steam_engine/drive_axle.lua
+++ b/steam_engine/drive_axle.lua
@@ -18,7 +18,7 @@ local P = minetest.string_to_pos
 local M = minetest.get_meta
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 
diff --git a/steam_engine/firebox.lua b/steam_engine/firebox.lua
index 0554ae6..6f88ee1 100644
--- a/steam_engine/firebox.lua
+++ b/steam_engine/firebox.lua
@@ -20,7 +20,7 @@ local M = minetest.get_meta
 local TRD = function(pos) return (minetest.registered_nodes[minetest.get_node(pos).name] or {}).techage end
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 local CYCLE_TIME = 2
diff --git a/steam_engine/flywheel.lua b/steam_engine/flywheel.lua
index d47d5e8..74bf475 100644
--- a/steam_engine/flywheel.lua
+++ b/steam_engine/flywheel.lua
@@ -20,7 +20,7 @@ local M = minetest.get_meta
 local TRD = function(pos) return (minetest.registered_nodes[minetest.get_node(pos).name] or {}).techage end
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 local STANDBY_TICKS = 4
diff --git a/steam_engine/gearbox.lua b/steam_engine/gearbox.lua
index 79b583c..027c660 100644
--- a/steam_engine/gearbox.lua
+++ b/steam_engine/gearbox.lua
@@ -18,7 +18,7 @@ local P = minetest.string_to_pos
 local M = minetest.get_meta
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 local POWER_CONSUMPTION = 1
diff --git a/steam_engine/steam_pipe.lua b/steam_engine/steam_pipe.lua
index 6be9892..adb2ea4 100644
--- a/steam_engine/steam_pipe.lua
+++ b/steam_engine/steam_pipe.lua
@@ -18,7 +18,7 @@ local P = minetest.string_to_pos
 local M = minetest.get_meta
 
 -- Load support for intllib.
-local MP = minetest.get_modpath("tubelib2")
+local MP = minetest.get_modpath("techage")
 local I,_ = dofile(MP.."/intllib.lua")
 
 
diff --git a/textures/techage_appl_sieve.png b/textures/techage_appl_sieve.png
new file mode 100644
index 0000000..c0d6515
Binary files /dev/null and b/textures/techage_appl_sieve.png differ
diff --git a/textures/techage_appl_sieve4.png b/textures/techage_appl_sieve4.png
index 242b85e..deaa6f7 100644
Binary files a/textures/techage_appl_sieve4.png and b/textures/techage_appl_sieve4.png differ
diff --git a/textures/techage_appl_sieve4_top.png b/textures/techage_appl_sieve4_top.png
new file mode 100644
index 0000000..6a836ad
Binary files /dev/null and b/textures/techage_appl_sieve4_top.png differ
diff --git a/textures/techage_appl_sieve_top.png b/textures/techage_appl_sieve_top.png
new file mode 100644
index 0000000..d54fe63
Binary files /dev/null and b/textures/techage_appl_sieve_top.png differ
diff --git a/textures/techage_compressed_gravel.png b/textures/techage_compressed_gravel.png
new file mode 100644
index 0000000..858aebe
Binary files /dev/null and b/textures/techage_compressed_gravel.png differ
diff --git a/textures/techage_frame_ta2_top.png b/textures/techage_frame_ta2_top.png
index cc722dd..1b4c3dd 100644
Binary files a/textures/techage_frame_ta2_top.png and b/textures/techage_frame_ta2_top.png differ
diff --git a/textures/techage_handsieve_gravel.png b/textures/techage_handsieve_gravel.png
new file mode 100644
index 0000000..8b0597a
Binary files /dev/null and b/textures/techage_handsieve_gravel.png differ
diff --git a/textures/techage_handsieve_sieve.png b/textures/techage_handsieve_sieve.png
new file mode 100644
index 0000000..dbf785c
Binary files /dev/null and b/textures/techage_handsieve_sieve.png differ
diff --git a/textures/techage_handsieve_top.png b/textures/techage_handsieve_top.png
new file mode 100644
index 0000000..32f6159
Binary files /dev/null and b/textures/techage_handsieve_top.png differ
diff --git a/textures/techage_tool_hammer_bronze.png b/textures/techage_tool_hammer_bronze.png
new file mode 100644
index 0000000..3c48e9f
Binary files /dev/null and b/textures/techage_tool_hammer_bronze.png differ
diff --git a/textures/techage_tool_hammer_diamond.png b/textures/techage_tool_hammer_diamond.png
new file mode 100644
index 0000000..5be814e
Binary files /dev/null and b/textures/techage_tool_hammer_diamond.png differ
diff --git a/textures/techage_tool_hammer_mese.png b/textures/techage_tool_hammer_mese.png
new file mode 100644
index 0000000..a870729
Binary files /dev/null and b/textures/techage_tool_hammer_mese.png differ
diff --git a/textures/techage_tool_hammer_steel.png b/textures/techage_tool_hammer_steel.png
new file mode 100644
index 0000000..680717e
Binary files /dev/null and b/textures/techage_tool_hammer_steel.png differ