PTFE Cutting Tool 45° 60° 90°

thingiverse

## Introduction This PTFE cutting tool is designed for various extruders and works with PTFE tubes that require an external chamfer on their end. The tool can also cut flat on both sides, thanks to its 3-step execution and slightly angled blade. This safe tool protects your fingers from accidents. Source files in Fusion 360 and STEP format are available if you want to customize the length of the tool. I have created a dedicated guide that explains how to use this tool and what materials are needed. ## Chamfer Angles You can create an outside chamfer of 60° or 45° with these tools, or cut both sides flat. The Prusa specification states that the end of the PTFE tube should be at a 60° angle, but some users prefer to use a 45° angle because it is closer to what is inside the heatbreak. The E3D manual specifies that the PTFE tube needs to be cut flat on both sides without any outside or inside chamfers. You can do this by skipping steps #1 and #2 and only cutting the length with step #3. ## Available Lengths * 39mm: Bondtech Prusa Upgrade MK2(S), MK2.5(S) and MK3(S) extruder. * 44.2mm: Original Prusa MK2.5S and MK3S extruder. * 50mm: Original Prusa MK2(S), MK2.5 and MK3 extruder, Bear MK2.5(S) and MK3(S) extruder. Note: Bondtech has created a tool to cut the length once the PTFE tube is inserted inside the hotend. ## Materials Needed * A box cutter with a blade thickness of approximately 0.4mm. * A 60° countersink, which can have different shapes (check our guide for more details). * PTFE tube that is at least 100mm long. ## How to Use It Read the guide on how to use this tool here: [Trim PTFE Tube Guide](https://guides.bear-lab.com/Guide/Trim+PTFE+Tube/21?lang=en) ## Print Settings * Filament type: PLA or PETG * Layer height: 0.20mm * Infill: 20% * Perimeters: 3-4 * Support: No * Brim: No * Detect thin walls: No ## Credits Some inspiration for my tool comes from the [Vecko Kojchevski's PTFE Cutting Jig 45° / 60°](https://www.thingiverse.com/thing:3062809) ## License This tool is released under the GPLv3 license, which allows for commercial use, modification, distribution, patent use, and private use. However, it comes with certain limitations, including liability and warranty restrictions. The license requires that you include a copyright notice, state changes made to the original code, disclose the source of the software, and maintain the same license.