Maturity

• Very Good.
• 4 prototypes.
• In use since 2025/03.

Hardware

• PTFE tube OD 4mm L118 x2. You may insert AxeRigideIntTubePTFE-r00a - d2.8-l118 in it to avoid the PTFE to flatten too much. In that case you need a ID 3mm PTFE tube.
• To fix the filament guide in the side panel instead of the front-middle rivet:
  • One M3 square nut
  • One M3 screw - length between 10 and 20 fits.

Two versions

• Design with 350mm Spool in mind. Fits well a 350mm spool. On the photo it is the 350mm version as I have some 350mm spools in stock.
• Design with 300mm Spool in mind. The spool is then lower and more in the back than the 350mm version. The filament path should be better. But a 350mm doesn't fit.

Printing

• You need to change the orientation in the slicer to make the part laying on its bottom surface.

Log

• 2025/05/04: Added a better filament guide. I want to keep it simple to use.
• 2025/03/29: Added a filament guide to avoid the filament to pass over the side of the spool.