Here's a nice ball-bearing spool holder for a Biqu BX. The standard thing is just a straight bit of plastic with a lot of friction, so I designed this to be a drop-in replacement.
You'll need about 15cm of 8mm threaded bar, and 3 or 4 M8 nuts, and 2 standard 608 ball bearings.
The original mounts through a 30mm hole in the steel support arm, and this mounts in that hole.
| Back_plate.stl | 228.1KB | |
| Rear_nut.stl | 317.1KB | |
| Retaining_knob.stl | 941.3KB | |
| Spool_support.stl | 450.2KB |
