PTFE Tube Guillotine Cutter

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Getting a precise 90-degree cut on PTFE tubing can be a frustrating task, indeed. If it's not spot on, you're essentially inviting leakage, which is never a good thing in any situation, especially when it comes to a 3D printer hotend. You could disassemble the heatblock and trim the tubing flush against the metal sleeve, but that process isn't exactly fun either. What you really need is the PTFE Tubing Guillotine! Simply slide your tubing through the hole until it's securely seated in the rear pocket and then slice - easy does it. To build one, you'll require a 25mm (1 inch) long 3mm bolt, a 3mm nut, and two 6mm long 3mm bolts, as well as a standard Stanley-type knife blade. Print Settings Supports: No Resolution: 0.2mm Infill: 100% Notes: You can print the base with less infill if you prefer - 20% or 30%, for instance, but the arm and the keeper really need to be at 100%. It doesn't consume much more filament, and the additional print time is minimal. Rotate the arm and the keeper 90 degrees so they're lying flat on their backs to avoid supports altogether.