diff --git a/basic_machines/distributor.lua b/basic_machines/distributor.lua
index 9ff7970..58133fc 100644
--- a/basic_machines/distributor.lua
+++ b/basic_machines/distributor.lua
@@ -96,7 +96,6 @@ local function filter_settings(pos)
 		ItemFilter = ItemFilter, 
 		OpenPorts = OpenPorts,
 	}
-	print("ItemFilter = "..dump(ItemFilter), "\nOpenPorts = "..dump(OpenPorts))
 end
 
 -- Return filter table and list of open ports.
@@ -197,7 +196,6 @@ local function distributing(pos, inv, trd, mem)
 		if item_filter[item_name] then
 			-- Push items based on filter
 			num_pushed = push_item(pos, item_filter[item_name], item_name, num_to_push, mem)
-			print("num_pushed",num_pushed, "num_to_push", num_to_push)
 		end
 		if num_pushed == 0 and #open_ports > 0 then
 			-- Push items based on open ports
@@ -213,7 +211,6 @@ local function distributing(pos, inv, trd, mem)
 		end
 	end
 	
-	print("sum_num_pushed",sum_num_pushed)
 	if num_pushed == 0 then
 		trd.State:blocked(pos, mem)
 	else
diff --git a/basic_machines/pusher.lua b/basic_machines/pusher.lua
index 5af0531..082938c 100644
--- a/basic_machines/pusher.lua
+++ b/basic_machines/pusher.lua
@@ -64,7 +64,6 @@ 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
diff --git a/basis/guide.lua b/basis/guide.lua
index ecc8e50..d89ed03 100644
--- a/basis/guide.lua
+++ b/basis/guide.lua
@@ -93,7 +93,6 @@ minetest.register_node("techage:construction_board", {
 		if minetest.is_protected(pos, player:get_player_name()) then
 			return
 		end
-		print(dump(fields))
 		local meta = minetest.get_meta(pos)
 		local idx = meta:get_int("help_idx")
 		idx = techage.range(idx, 1, #Recipes)
diff --git a/basis/node_states.lua b/basis/node_states.lua
index f30fb34..b370681 100644
--- a/basis/node_states.lua
+++ b/basis/node_states.lua
@@ -367,7 +367,6 @@ end
 function NodeStates:state_button_event(pos, mem, fields)
 	if fields.state_button ~= nil then
 		local state = mem.techage_state
-		print("on_receive_fields", state)
 		if state == STOPPED or state == STANDBY or state == BLOCKED then
 			self:start(pos, mem)
 		elseif state == RUNNING or state == FAULT then
diff --git a/basis/power.lua b/basis/power.lua
index bdc28fb..788a3e9 100644
--- a/basis/power.lua
+++ b/basis/power.lua
@@ -130,12 +130,10 @@ end
 
 -- Starts the overall power consumption and depending on that turns all nodes on/off
 local function start_network_power_consumption(pos, in_dir)
-	print("start_network_power_consumption", S(pos), in_dir)
 	Route = {}
 	local sum = power_consumption(pos, in_dir)
 	Route = {}
 	turn_on(pos, in_dir, sum)
-	print("consumption = "..sum)
 end
 
 --
diff --git a/iron_age/gravelsieve.lua b/iron_age/gravelsieve.lua
index 4db9864..ae0e0c9 100644
--- a/iron_age/gravelsieve.lua
+++ b/iron_age/gravelsieve.lua
@@ -141,7 +141,6 @@ end
 
 techage.register_node("techage:sieve0", {"techage:sieve1", "techage:sieve2", "techage:sieve3"}, {
 	on_push_item = function(pos, in_dir, stack)
-		print("on_push_item")
 		local meta = minetest.get_meta(pos)
 		local inv = meta:get_inventory()
 		if inv:room_for_item("src", stack) then
diff --git a/iron_age/hopper.lua b/iron_age/hopper.lua
index 217addc..a5a143f 100644
--- a/iron_age/hopper.lua
+++ b/iron_age/hopper.lua
@@ -53,7 +53,6 @@ local function push_item(pos, inv, meta)
 	if not inv:is_empty("main") then
 		local stack = inv:get_stack("main", 1)
 		local taken = stack:take_item(1)
-		print("neighbour_push_items")
 		if techage.neighbour_push_items(pos, meta:get_int("push_dir"), taken) then
 			inv:set_stack("main", 1, stack)
 		end
@@ -61,7 +60,6 @@ local function push_item(pos, inv, meta)
 end
 
 local function node_timer(pos, elapsed)
-	print("node_timer")
 	local meta = minetest.get_meta(pos)
 	local inv = meta:get_inventory()
 	if inv then