Step 1 Introduction & proper tools
⬢This guide is dedicated to the PTFE trimming for multi material Original Prusa printers, supported models are listed later on.
For single material Original Prusa printers PTFE trimming guide, go to: How to trim PTFE tube - Original Prusa printers
ATTENTION!!! Please read all instructions at least twice! If you trim or drill the tube improperly, you will have to order it again!
READ CAREFULLY instructions for the tools before you proceed further. Prusa Research is not responsible for any harm or injury.
⬢During assembly of your Multi Material, it might happen your PTFE tube is too long to fit in the Y-splitter.
⬢For trimming get a cutting tool with a thin blade. Use either razor or carpet knife. DON'T use kitchen knife.
⬢For drilling is recommended to use a drill bit with conic head or you can use a drill bit with diameter 3,5 - 4 mm. The point is to make a conical entrance in the tube.