Make technic dusts for silver, tin, mithril to work.

mods/nalc/depends.txt

@@ -5,3 +5,4 @@ bonemeal?
 vessels?
 farming?
 cotton?
+technic?

mods/nalc/init.lua

@@ -202,3 +202,38 @@ if minetest.get_modpath("cotton") then
 			}
 		})
 end
+
+-- Technic
+
+if minetest.get_modpath("technic") then
+	-- make silver, tin, mithril to be grinded
+	local recipes = {
+		-- Dusts
+		{"default:tin_lump", "technic:tin_dust 2"},
+		{"default:silver_lump", "technic:silver_dust 2"},
+		{"default:mithril_lump", "technic:mithril_dust 2"},
+	}
+
+	for _, data in pairs(recipes) do
+		technic.register_grinder_recipe({input = {data[1]}, output = data[2]})
+	end
+
+	-- dusts
+	local function register_dust(name, ingot)
+		local lname = string.lower(name)
+		lname = string.gsub(lname, ' ', '_')
+		if ingot then
+			minetest.register_craft(
+				{
+					type = "cooking",
+					recipe = "technic:"..lname.."_dust",
+					output = ingot,
+				})
+			technic.register_grinder_recipe({ input = {ingot}, output = "technic:"..lname.."_dust 1" })
+		end
+	end
+
+	register_dust("Mithril", "default:mithril_ingot")
+	register_dust("Silver", "default:silver_ingot")
+	register_dust("Tin", "default:tin_ingot")
+end