diff --git a/tubelib/command.lua b/tubelib/command.lua
index 4942897..5adab04 100644
--- a/tubelib/command.lua
+++ b/tubelib/command.lua
@@ -186,33 +186,13 @@ local function register_lbm(name, nodenames)
 	})
 end
 
-
-local DirToSide = {"B", "R", "F", "L", "D", "U"}
-
-local function dir_to_side(dir, param2)
-	if dir < 5 then
-		dir = (((dir - 1) - (param2 % 4)) % 4) + 1
-	end
-	return DirToSide[dir]
-end
-
-local SideToDir = {B=1, R=2, F=3, L=4, D=5, U=6}
-
-local function side_to_dir(side, param2)
-	local dir = SideToDir[side]
-	if dir < 5 then
-		dir = (((dir - 1) + (param2 % 4)) % 4) + 1
-	end
-	return dir
-end
-
 local function get_dest_node(pos, side)
 	local _,node = Tube:get_node(pos)
-	local dir = side_to_dir(side, node.param2)
+	local dir = tubelib2.side_to_dir(side, node.param2)
 	local spos, sdir = Tube:get_connected_node_pos(pos, dir)
 	if not (spos and sdir) then return end
 	_,node = Tube:get_node(spos)
-	local out_side = dir_to_side(tubelib2.Turn180Deg[sdir], node.param2)
+	local out_side = tubelib2.dir_to_side(tubelib2.Turn180Deg[sdir], node.param2)
 	return spos, out_side, Name2Name[node.name] or node.name
 end