"PTFE" FDM printable BMG Bondtech extruder for Prusa

thingiverse

"PTFE" FDM Printable BMG Bondtech Extruder for Prusa This design is based on MarcoZ76's Bondtech BMG Upgrade MK3S FDM printable new sensor integrated and Bondtech BMG Prusa MK3S/MK2.5S v2 FDM printable + RHD ver.C fan Shroud with some modifications to make the part easier to print with an FDM printer, added PTFE tube as filament path to fix the jamming problem of non-smooth printed filament path. ## Feature - Use PTFE tube instead of printed filament path that might cause jam if the printed path is not smooth enough. - Custom support built in on STL - Some changes made to make the parts easier to print - Accessible to the gear for manual control (cutout body version) - Fixed filament sensor false trigger problem ## Require Printed Parts | Part Name | Link | Other Option | | --- | --- | --- | | Nozzle Duct | [MK3 RHD Fan Duct Rev. C](https://www.thingiverse.com/thing:3249344) | [Micro-tweaks to Nozzle RHD Rev C for Slic3r](https://www.thingiverse.com/thing:4054462) | | Nozzle Duct Mounter | [MK3 Nozzle RHD Rev. C Support for FDM Printable Bondtech BMG](https://www.thingiverse.com/thing:3429508) | - | | X Carrier | Bear Bondtech Mounter | Standard bondtech carrier also works on stock mk3 (not tested) | | Body Front | v2-ptfe-body-front.stl | or cutout version | | Body Back | v2-ptfe-body-back.stl | | | Filament Sensor Level | v2-fs-lever.stl | Use the fix version instead. This version has extended the level by 0.5mm to address the unstable trigger problem in the original design | | Sensor Ball Bearing Adapter | v2-adapter-printer.stl | | | Hinge | v2-hingle.stl | | | Filament Sensor Cover | v2-Sensor_Cover_MK3s.stl | v2-Sensor_Cover_MK3s-M5x08.STL, v2-Sensor_Cover_MK3s-M6x1.stl | | PTFE Cutter Guide (base & cap) | PTFE-cutter-guide-base.stl & PTFE-cutter-guide-cap.stl | | ## Require Part | Part Name | Link | | | --- | --- | --- | | 1x Shaft Assembly | https://www.bondtech.se/en/product/shaft-assembly | | | 2x Ball Bearing 5x8x2.5 | https://www.bondtech.se/en/product/ballbearing-5x8x2-5/ | | | 1x Motor Gear | https://www.bondtech.se/en/product/motor-gear/ | | | 1x 1.75 / 5.0 Bondtech Drivergear Kit | b | No need if you own a MK3 | | 1x Thumbscrew Assembly | https://www.bondtech.se/en/product-category/spare-parts/thumbscrew-assembly/ | Can use a long M3 bolt instead | ## Assembly Guide - You will need to use the PTFE cutting guide to cut and file down the PTFE tube. Use a small file or a rotary tool to file down about 0.5mm on each side of the tube. - Other steps are the same as in the Bondtech guide. ## Print Settings (Prusa Slicer) - 0.2mm layer height - No support