PTFE Tube Chamfer and Cut Jig

prusaprinters

<p>Simple jig for PTFE tube cutting (4mm OD), having:</p><ul><li>60° (30), 90° (45) and 120° (60) degree chamfer tool (works like pencil sharpener)</li><li>Length of 13, 15, 19, 35.3, 38.8, 42.3, 43.4, 44.2, 50 and 66mm cutting tool</li></ul><p>Needed tools:</p><ul><li>Sharp blade knife for cutting (9mm blade)</li><li>Center drill for an easy way to make 60° degree inside chamfer (<a href="https://www.ebay.com/sch/i.html?_nkw=center+drill">eBay Search for Center Drill</a>) - Or a regular 4mm drill as an alternative</li></ul><p>See photos for usage.</p><p>Tube length for Prusa Printers can be found here: <a href="https://help.prusa3d.com/en/guide/how-to-trim-ptfe-tube-original-prusa-printers_22424">How to trim PTFE tube - Original Prusa printers</a></p><p><i><strong>&gt;&gt; If you like it, please leave a rating, a like or maybe a donation :)</strong></i></p><p>&nbsp;</p><h3><strong>Updates:</strong></h3><p><strong>18. May 2021:</strong><br>Added 38.8 mm cutting length for the Prusa Mini titanium BROZZL option. As there is no official specifications yet, the length is estimated from samples.</p><p><strong>10. Dec 2020:</strong><br>Added 42.3 mm cutting length for the Prusa I3 MK3S+.<br>All cutting tools now has the length written on the underside of the tool.</p><p><strong>17. May 2020:</strong><br>Added PTFE tube cutting length of 35.3mm for Prusa Mini Bondtech edition. Can be used with the 120° chamfer tool.</p><p><strong>24. February 2020:</strong><br>Cutting length of 43.4mm for Prusa Mini hot end PTFE tube and external 120° chamfer tool.</p><p><strong>19. November 2018:</strong><br>For some hot ends the external chamfer angle is now 60° degrees - this made me add a tool for this angle.</p><p>To make it easier to distinguish the tools, they are marked with 60°and 90°.</p><p>All tools can be found in the files section.</p><h3>Print instructions</h3><p>Shown models is printed in Devil Design PETG Black and Gray.</p><h3>Post-Printing</h3><p>The 60°/90°/120° degree chamfer tool may need to have the hole cleaned with a 4mm drill/reamer as it has to be a tight fit to work properly.</p>