About this 3D model

I only added channels for PTFE tubes, which made the turning of the 3kg spool a lot smoother. Can hold spools that are about 24cm in diameter and up to 9cm thick. Use the standard 4mm Ø tubes. Cut them to 11cm in length. They can be fed through the top holes and should sit snugly in the channels :) You might wanna check the handy little PTFE tube cutter I made, too. Perfect cuts every time, and no assembly is needed.