With the release of the v2 of the BTT smart filament sensor I saw that it had a button/plunger for easier loading of flexibles. This has been a pain on the current v1 and looking around I saw that FNM on Thingiverse had a mod to add a similar feature. I decided to remix my original design and their design to add that feature to my Voron mount.
Hardware Required
- BTT Smart Filament Sensor (remove backplate, new screws needed due to added thickness)
- 2x M3 hammerhead nuts
- 2x M3 x 8mm socket head screws
- 6x M3 x 12mm socket head screws (replaces original BTT screws)
Print Settings
- Print parts as oriented
- Supports are needed on the sensor mount or you can use the pre-supported one
- 4 walls and 40% infill
- Some filing may be needed on the sensor mount where it snaps into the top extrusion depending on your support/bridging settings
- May need to drill out the bowden guide PTFE path depending on your printer tuning/bridging settings
Assembly
- Remove the backplate from the BTT sensor
- Sandwich the sensor plate (Red), plunger (Grey), mid plate (Blue), and back plate (Green to the BTT sensor and attach with the 2 bottom screws (M3 x 12mm)
- Attach the sensor mount (Pink) with the four remaining M3 x 12mm screws
- Attach bowden guide (Purple) and sensor to the top extrusion using the M3x8 screws and hammerhead nuts
- Feed in bowden through the bowden guide and into the sensor coupler
- Insert a small length of PTFE on the other side of the sensor to guide filament in