diff --git a/basic_machines/generator.lua b/basic_machines/generator.lua
index 6b14378..f1c5439 100644
--- a/basic_machines/generator.lua
+++ b/basic_machines/generator.lua
@@ -61,7 +61,7 @@ local function start_node(pos, mem, state)
 	minetest.sound_play("techage_generator", {
 		pos = pos, 
 		gain = 1,
-		max_hear_distance = 7})
+		max_hear_distance = 10})
 end
 
 local function stop_node(pos, mem, state)
@@ -107,7 +107,7 @@ local function node_timer(pos, elapsed)
 		minetest.sound_play("techage_generator", {
 			pos = pos, 
 			gain = 1,
-			max_hear_distance = 7})
+			max_hear_distance = 10})
 		return true
 	else
 		mem.provided = 0
diff --git a/basic_machines/gravelrinser.lua b/basic_machines/gravelrinser.lua
index af5956a..457fc0f 100644
--- a/basic_machines/gravelrinser.lua
+++ b/basic_machines/gravelrinser.lua
@@ -107,8 +107,10 @@ end
 local function set_velocity(obj, pos, vel)
 	obj:set_acceleration({x = 0, y = 0, z = 0})
 	local p = obj:get_pos()
-	obj:set_pos({x=p.x, y=p.y-0.3, z=p.z})
-	obj:set_velocity(vel)
+	if p then
+		obj:set_pos({x=p.x, y=p.y-0.3, z=p.z})
+		obj:set_velocity(vel)
+	end
 end
 
 local function add_object(pos, name)
diff --git a/basis/command.lua b/basis/command.lua
index 13dff01..add2eb0 100644
--- a/basis/command.lua
+++ b/basis/command.lua
@@ -285,7 +285,7 @@ function techage.send_multi(numbers, placer_name, clicker_name, topic, payload)
 	for _,num in ipairs(string_split(numbers, " ")) do
 		if Number2Pos[num] and Number2Pos[num].name then
 			local data = Number2Pos[num]
-			if not_protected(data.pos, placer_name, clicker_name) then
+			if data.pos and not_protected(data.pos, placer_name, clicker_name) then
 				if NodeDef[data.name] and NodeDef[data.name].on_recv_message then
 					NodeDef[data.name].on_recv_message(data.pos, topic, payload)
 				end
@@ -297,7 +297,7 @@ end
 function techage.send_single(number, topic, payload)
 	if Number2Pos[number] and Number2Pos[number].name then
 		local data = Number2Pos[number]
-		if NodeDef[data.name] and NodeDef[data.name].on_recv_message then
+		if data.pos and NodeDef[data.name] and NodeDef[data.name].on_recv_message then
 			return NodeDef[data.name].on_recv_message(data.pos, topic, payload)
 		end
 	end
diff --git a/basis/consumer.lua b/basis/consumer.lua
index 53005c6..a5358a3 100644
--- a/basis/consumer.lua
+++ b/basis/consumer.lua
@@ -61,6 +61,10 @@ local function node_timer(pos, elapsed)
 		elseif state ~= techage.NOPOWER and got < crd.power_consumption then
 			crd.State:nopower(pos, mem)
 		end
+	elseif state == techage.STANDBY then
+		if not power_available(pos, 0) then
+			crd.State:nopower(pos, mem)
+		end
 	end
 	-- call the secondary timer routine with the requested frequency
 	local res
diff --git a/basis/guide.lua b/basis/guide.lua
index d86d3f8..5e4eadc 100644
--- a/basis/guide.lua
+++ b/basis/guide.lua
@@ -42,12 +42,13 @@ end
 
 local function formspec_help(idx)
 	local bttn
+	local box = "box[7.5,0.9;1,1.1;#BBBBBB]"
 	if ItemNames[idx] == "-" then
 		bttn = ""
 	elseif ItemNames[idx] == "plan" then
 		bttn = "button[7.6,1;1,1;plan;"..S("Plan").."]"
 	else
-		bttn = "item_image[7.6,1;1,1;"..ItemNames[idx].."]"
+		bttn = box.."item_image[7.6,1;1,1;"..ItemNames[idx].."]"
 	end
 	return "size[9,9]"..
 	default.gui_bg..
@@ -56,7 +57,8 @@ local function formspec_help(idx)
 	"item_image[7.6,0;1,1;techage:construction_board]"..
 	bttn..
 	"table[0.1,0;7,3;page;"..NamesAsStr..";"..idx.."]"..
-	"textarea[0.3,3.7;9,6.2;help;"..S("Help")..":;"..Recipes[idx].."]"
+	"textarea[0.3,3.7;9,6.2;help;"..S("Help")..":;"..Recipes[idx].."]"..
+	"box[0,3.7;8.775,5.25;#000000]"
 end
 
 local function formspec_plan(idx)
diff --git a/basis/junction.lua b/basis/junction.lua
deleted file mode 100644
index d7a3db4..0000000
--- a/basis/junction.lua
+++ /dev/null
@@ -1,86 +0,0 @@
---[[
-
-	TechAge
-	=======
-
-	Copyright (C) 2019 Joachim Stolberg
-
-	LGPLv2.1+
-	See LICENSE.txt for more information
-	
-	Junction for power distribution
-
-]]--
-
--- 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
-
-
-local function bit(p)
-  return 2 ^ (p - 1)  -- 1-based indexing
-end
-
--- Typical call:  if hasbit(x, bit(3)) then ...
-local function hasbit(x, p)
-  return x % (p + p) >= p       
-end
-
-local function setbit(x, p)
-  return hasbit(x, p) and x or x + p
-end
-	
-local function get_node_box(val, size, boxes)
-	local fixed = {{-size, -size, -size, size, size, size}}
-	for i = 1,6 do
-		if hasbit(val, bit(i)) then
-			for _,box in ipairs(boxes[i]) do
-				table.insert(fixed, box)
-			end
-		end
-	end
-	return {
-		type = "fixed",
-		fixed = fixed,
-	}
-end
-
--- 'size' is the size of the junction cube without any connection, e.g. 1/8
--- 'boxes' is a table with 6 table elements for the 6 possible connection arms
--- 'network' is the tubelib2 instance
--- 'node' is the node definition with tiles, callback functions, and so on
-function techage.register_junction(name, size, boxes, network, node)
-	for idx = 0,63 do
-		local ndef = table.copy(node)
-		if idx == 0 then
-			ndef.groups.not_in_creative_inventory = 0
-		else
-			ndef.groups.not_in_creative_inventory = 1
-		end
-		ndef.groups.techage_trowel = 1
-		ndef.drawtype = "nodebox"
-		ndef.node_box = get_node_box(idx, size, boxes)
-		ndef.paramtype2 = "facedir"
-		ndef.on_rotate = screwdriver.disallow
-		ndef.paramtype = "light" 
-		ndef.sunlight_propagates = true 
-		ndef.is_ground_content = false 
-		ndef.drop = name.."0" 
-		-- use the original techage table!!!
-		ndef.techage = node.techage
-		minetest.register_node(name..idx, ndef)
-		network:add_secondary_node_names({name..idx})
-	end
-end
-
-function techage.junction_type(conn)
-	local val = 0
-	for idx = 1,6 do
-		if conn[idx] then
-			val = setbit(val, bit(idx))
-		end
-	end
-	return val
-end	
-
diff --git a/intllib.sh b/intllib.sh
deleted file mode 100755
index 5b9294f..0000000
--- a/intllib.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-
-../intllib/tools/xgettext.sh ./tube_api.lua ./internal1.lua ./internal2.lua
\ No newline at end of file
diff --git a/lamps/lib.lua b/lamps/lib.lua
index 7857b2e..1e2046a 100644
--- a/lamps/lib.lua
+++ b/lamps/lib.lua
@@ -90,9 +90,11 @@ end
 function techage.register_lamp(basename, ndef_off, ndef_on)
 	ndef_off.on_construct = tubelib2.init_mem
 	ndef_off.on_rightclick = lamp_on_rightclick
-	ndef_off.on_rotate = on_rotate
+	if not ndef_off.on_rotate then
+		ndef_off.on_place = on_place
+	end
+	ndef_off.on_rotate = ndef_off.on_rotate or on_rotate
 	ndef_off.on_timer = node_timer
-	ndef_off.on_place = on_place
 	ndef_off.paramtype = "light"
 	ndef_off.light_source = 0
 	ndef_off.sunlight_propagates = true
@@ -103,7 +105,7 @@ function techage.register_lamp(basename, ndef_off, ndef_on)
 	
 	ndef_on.on_construct = tubelib2.init_mem
 	ndef_on.on_rightclick = lamp_on_rightclick
-	ndef_on.on_rotate = on_rotate
+	ndef_on.on_rotate = ndef_on.on_rotate or on_rotate
 	ndef_on.on_timer = node_timer
 	ndef_on.paramtype = "light"
 	ndef_on.light_source = minetest.LIGHT_MAX
diff --git a/lamps/streetlamp.lua b/lamps/streetlamp.lua
index a986a2e..9025e09 100644
--- a/lamps/streetlamp.lua
+++ b/lamps/streetlamp.lua
@@ -39,6 +39,8 @@ techage.register_lamp("techage:streetlamp", {
 		type = "fixed",
 		fixed = {-8/16, -8/16, -8/16,   8/16, 8/16, 8/16},
 	},
+	on_rotate = screwdriver.disallow,
+	conn_sides = {"U", "D"},
 },{
 	description = "TA Street Lamp",
 	tiles = {
@@ -60,6 +62,7 @@ techage.register_lamp("techage:streetlamp", {
 		type = "fixed",
 		fixed = {-8/16, -8/16, -8/16,   8/16, 8/16, 8/16},
 	},
+	on_rotate = screwdriver.disallow,
 })
 
 minetest.register_craft({
diff --git a/oil/drillbox.lua b/oil/drillbox.lua
index 265c743..77d1e57 100644
--- a/oil/drillbox.lua
+++ b/oil/drillbox.lua
@@ -25,7 +25,7 @@ local I,_ = dofile(MP.."/intllib.lua")
 
 local STANDBY_TICKS = 4
 local COUNTDOWN_TICKS = 6
-local CYCLE_TIME = 8
+local CYCLE_TIME = 16
 
 local formspec0 = "size[5,4]"..
 	default.gui_bg..
@@ -306,7 +306,7 @@ derrick when you press the button.
 5: Press the start button
 6: Remove the excavated material with Tubes/Pusher
 7: The drill stops when oil is found
-    (drill speed is 1m/8s)
+    (drill speed is 1m/16s)
 8: Replace the drill with the Pumpjack]]), node_name_ta3)
 
 minetest.register_lbm({
diff --git a/textures/techage_appl_hopper_top.png b/textures/techage_appl_hopper_top.png
index e940938..97ce3c2 100644
Binary files a/textures/techage_appl_hopper_top.png and b/textures/techage_appl_hopper_top.png differ