diff --git a/extranodes/init.lua b/extranodes/init.lua
index 06e110e..edc7e87 100644
--- a/extranodes/init.lua
+++ b/extranodes/init.lua
@@ -193,7 +193,6 @@ end
 
 minetest.register_node(":technic:insulator_clip", iclip_def)
 minetest.register_node(":technic:insulator_clip_fencepost", iclipfence_def)
-minetest.register_node(":technic:steel_strut_with_insulator_clip", sclip_def)
 
 minetest.register_craft({
 	output = "technic:insulator_clip",
@@ -215,33 +214,35 @@ minetest.register_craft({
 
 local steelmod = minetest.get_modpath("steel")
 
-if steelmod then
-	minetest.register_craft({
-		output = "technic:steel_strut_with_insulator_clip",
-		recipe = {
-			{"technic:insulator_clip_fencepost"},
-			{"steel:strut_mount"}
-		}
-	})
+if streetsmod or steelmod then
+	minetest.register_node(":technic:steel_strut_with_insulator_clip", sclip_def)
 
-	minetest.register_craft({
-		output = "technic:steel_strut_with_insulator_clip",
-		recipe = {
-			{"technic:insulator_clip_fencepost", ""                    },
-			{"steel:strut",                      "default:steel_ingot" },
-		}
-	})
+	if steelmod then
+		minetest.register_craft({
+			output = "technic:steel_strut_with_insulator_clip",
+			recipe = {
+				{"technic:insulator_clip_fencepost"},
+				{"steel:strut_mount"}
+			}
+		})
 
-end
+		minetest.register_craft({
+			output = "technic:steel_strut_with_insulator_clip",
+			recipe = {
+				{"technic:insulator_clip_fencepost", ""                    },
+				{"steel:strut",                      "default:steel_ingot" },
+			}
+		})
 
-if streetsmod then
-	minetest.register_craft({
-		output = "technic:steel_strut_with_insulator_clip",
-		recipe = {
-			{"technic:insulator_clip_fencepost", ""                   },
-			{"streets:steel_support",           "default:steel_ingot" },
-		}
-	})
+	elseif streetsmod then
+		minetest.register_craft({
+			output = "technic:steel_strut_with_insulator_clip",
+			recipe = {
+				{"technic:insulator_clip_fencepost", ""                   },
+				{"streets:steel_support",           "default:steel_ingot" },
+			}
+		})
+	end
 end
 
 if minetest.get_modpath("unifieddyes") then
diff --git a/technic/crafts.lua b/technic/crafts.lua
index 90bd2dd..3b17e6d 100644
--- a/technic/crafts.lua
+++ b/technic/crafts.lua
@@ -44,6 +44,12 @@ minetest.clear_craft({
 	output = "basic_materials:brass_ingot",
 })
 
+minetest.register_craft( {
+	type = "shapeless",
+	output = "basic_materials:brass_ingot 9",
+	recipe = { "basic_materials:brass_block" },
+})
+
 -- tubes crafting recipes
 
 minetest.register_craft({
diff --git a/technic/machines/HV/quarry.lua b/technic/machines/HV/quarry.lua
index f151975..6d3cbdd 100644
--- a/technic/machines/HV/quarry.lua
+++ b/technic/machines/HV/quarry.lua
@@ -116,6 +116,11 @@ local function quarry_run(pos, node)
 
 	if meta:get_int("enabled") and meta:get_int("HV_EU_input") >= quarry_demand and meta:get_int("purge_on") == 0 then
 		local pdir = minetest.facedir_to_dir(node.param2)
+		if pdir.y > 0 or pdir.y < 0 then
+			-- faces up or down, not valid, otherwise depth-check would run endless and hang up the server
+			return
+		end
+
 		local qdir = pdir.x == 1 and vector.new(0,0,-1) or
 			(pdir.z == -1 and vector.new(-1,0,0) or
 			(pdir.x == -1 and vector.new(0,0,1) or