Anycubic Filament Spool Holder Brace V1.5

thingiverse

**Updated to V1.5, see Version Updates section - model is now fully customizable** I recently acquired my Anycubic Kossel Delta (pulley version), which led to a need for several upgrades. The addition of an **acrylic spool holder** in the kit was a nice touch by Anycubic, but it has a critical flaw: The metal rod holding the spool is too small compared to the inside diameter of the spool. This causes the spool to sit on top of the rod, leading to uneven extrusion when the extruder tries to pull filament. To address this issue, I designed a brace that inserts into both sides of the spool with centered bearings (standard skateboard issue bearing). I've included the **SCAD** file for your convenience. The print requires approximately 12g (0.42oz) / 3.96m (12.99ft) of filament per brace and takes about 52 minutes according to Cura, but realistically will take around 40 minutes with the specified print settings. For assembly, you'll need: * 2x standard skateboard bearings (Z608 I believe) * 2x amounts of filament mentioned above * a rod of some kind (8mm / 0.315in or less thick, at least 13.2cm / ~5.2 in long, better 1-2cm / 0.4-0.8in longer), wood, plastic, metal etc. - ideally 8mm to fit nicely into the bearing but smaller should do also since the spool is now nearly centered and should unroll more easily I made the opening on the back of the brace a bit bigger so that the bearing can be pushed out more easily (with the back of a pen etc.) in case one wants to reuse the bearing. This is a work in progress, and there will be follow-up versions. However, it can be printed as is and already provides an improvement. **Planned Updates** For version #2, I plan to add: * small braces to hold the rod in place in the holder * spacers for the spool to keep it centered in the holder (the holder is designed to hold bigger spools also so it would be good to keep the 1kg spool in place somehow) * I might try to add small tabs where the bearing goes that press against the bearing so that the bearing stays in place even if it is removed a few times and the fit gets less snug * see if I can reduce the material demand even more (even though 12g is not too much to begin with I think) Maybe version #3: * make a lying down version, for that I would have to reverse the position of the bearing holder and would need some kind of stand or holder to put it on top of the printer but I worry about the filament twisting too much because of the odd position towards the extruder Let me know in the comments if anything is missing or if you have improvement ideas.