Biqu B1 Smart Filament Sensor Bracket

thingiverse

I decided to create a bracket in order to mount the Bigtreetech Smart Filament Sensor securely on the Biqu B1. This is for the factory fitted extruder. Been testing for a few days, and it holds well. No more noise caused by the sensor hitting things due to retraction etc. I removed the bowden coupler on the exit of the sensor. This makes it easier to insert filament into the extruder after leaving the sensor. The default runout distance for the sensor is 7mm. With the sensor in this position on my bracket, you might want to increase the runout distance to avoid the odd false positive triggering. This can be achieved by increasing the runout distance. I recommend starting at 12mm by entering the following command in the terminal (Pronterface etc.) M412 D12, followed by M500 to save to EEPROM. Once you find a good setting you can modify the setting in the firmware if you wish. If you do change it in firmware, remember to run an M502 to load EEPROM values followed again by an M500. I decided to add this as a remix, due to the fact I started with the runout sensor bracket from bluelemonband The sensor rear plate is from NDCSR https://www.thingiverse.com/thing:4573737 with an extra hole. (But credit goes to him for the cover. Note will need to print both files. The replacement rear cover for the sensor allows mounting to the bracket using suitable M3 screws and nuts. Enjoy!