diff --git a/machines.lua b/machines.lua
index 0a4865e..48e53c3 100644
--- a/machines.lua
+++ b/machines.lua
@@ -173,6 +173,7 @@ elseif industrialtest.mclAvailable then
 	definition.after_dig_node=function(pos,oldnode,oldmeta)
 		mclAfterDigNode(pos,oldmeta,{"charged","fuel"})
 	end
+	definition.sounds=mcl_sounds.node_sound_metal_defaults()
 	definition._mcl_blast_resistance=3.5
 	definition._mcl_hardness=3.9
 end
@@ -204,6 +205,15 @@ minetest.register_craft({
 		{"","",industrialtest.elementKeys.furnace}
 	}
 })
+minetest.register_craft({
+	type="shaped",
+	output="industrialtest:generator",
+	recipe={
+		{"","industrialtest:re_battery",""},
+		{"industrialtest:refined_iron_ingot","industrialtest:refined_iron_ingot","industrialtest:refined_iron_ingot"},
+		{"","industrialtest:iron_furnace",""}
+	}
+})
 
 -- Item processing machines
 local function ironFurnaceFormspec(fuelPercent,srcPercent)
@@ -402,6 +412,7 @@ if industrialtest.mtgAvailable then
 		cracky=1,
 		level=2
 	}
+	definition.sounds=default.node_sound_metal_defaults()
 	definition.can_dig=function(pos)
 		local meta=minetest.get_meta(pos)
 		local inv=meta:get_inventory()
@@ -411,6 +422,7 @@ elseif industrialtest.mclAvailable then
 	definition.after_dig_node=function(pos,oldnode,oldmeta)
 		mclAfterDigNode(pos,oldmeta,{"src","fuel","dst"})
 	end
+	definition.sounds=mcl_sounds.node_sound_metal_defaults()
 	definition._mcl_blast_resistance=3
 	definition._mcl_hardness=3.5
 end
@@ -424,6 +436,15 @@ minetest.register_craft({
 		{industrialtest.elementKeys.ironIngot,industrialtest.elementKeys.ironIngot,industrialtest.elementKeys.ironIngot}
 	}
 })
+minetest.register_craft({
+	type="shaped",
+	output="industrialtest:iron_furnace",
+	recipe={
+		{"",industrialtest.elementKeys.ironIngot,""},
+		{industrialtest.elementKeys.ironIngot,"",industrialtest.elementKeys.ironIngot},
+		{industrialtest.elementKeys.ironIngot,industrialtest.elementKeys.furnace,industrialtest.elementKeys.ironIngot}
+	}
+})
 
 local function electricFurnaceFormspec(powerPercent,srcPercent)
 	local formspec
@@ -636,6 +657,7 @@ if industrialtest.mtgAvailable then
 		cracky=1,
 		level=2
 	}
+	definition.sounds=default.node_sound_metal_defaults()
 	definition.can_dig=function(pos)
 		local meta=minetest.get_meta(pos)
 		local inv=meta:get_inventory()
@@ -645,6 +667,7 @@ elseif industrialtest.mclAvailable then
 	definition.after_dig_node=function(pos,oldnode,oldmeta)
 		mclAfterDigNode(pos,oldmeta,{"src","powerStorage","dst","upgrades"})
 	end
+	definition.sounds=mcl_sounds.node_sound_metal_defaults()
 	definition._mcl_blast_resistance=3
 	definition._mcl_hardness=3.5
 end