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Q2 Filament Entry Sensor D2F - metal collet version — zdjęcie 1
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Q2 Filament Entry Sensor D2F - metal collet version

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Uses brass insert metal collet from E3D instead of an ECAS to eliminate teeth cutting PTFE.

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Just a small revision to the excellent filament sensor model by 53Aries and updated by Spunguh.  I used a metal collet insert from E3D to finally fix the issue of the ECAS teeth cutting the tube.  Collet rotates freely with the PTFE so no more tube failures - hopefully!

The collet insert I used from KB3D:

https://kb-3d.com/store/extruders-hotends/39-e3d-embedded-bowden-coupling-for-metal-175mm-1644688734926.html

*NOTE:  MAKE SURE YOU POST-PROCESS THE MODEL BY USING A RAT-TAIL NEEDLE FILE AS DESCRIBED IN SPUNGUH'S MODEL POSTING BEFORE YOU INSTALL THE BRASS INSERT!!!

Pictures annotated and pretty self-explanatory.  Have had no issues with tube getting cut-off with this version.  I used tight tolerances to ensure a good press-fit.  STEP is provided if you need to loosen the tolerance a bit (but if your printer is well calibrated should not be an issue).  Not sure about filled filaments as used non-filled PC-blend for the prototype. 

Happy Printing!

Tagi