Simplified Modular Spool Holder - Standalone or Extrusion Mounted, Parametric CAD included

Inspired by Elcrni's internal spool holder for the Voron Trident. A complete re-design with a much-reduced bill of materials, entirely printable on a printers for ants 120mm³ print bed.

Other notable features:

• Crush-ribs in all sockets, creating a perfect press fit for rods and bearings regardless of material warping or printer inaccuracy
• Mounting Options:
  • Mount to 2020 extrusion (e.g. as an internal spool holder for a Voron Trident)
  • Or mount flat on the table (just print a second set of “floating” jaws in place of the fixed ones
• All STL files oriented for printing

Bill of Materials:

• M3 heat-set-inserts (8x)
• M3 x 10mm Socket Head Cap Screws (8x)
• 8mm Diameter Rods (100mm or 110mm) (2x)
• 608ZZ bearings (4x)
• [M5 Screw & T-slot Nut for 2020 Extrusion Mounting] (2x)

Note: This model contains 40° overhangs. On my V0 with a .6mm nozzle, everything printed perfectly fine without any supports, even in ABS and with very low cooling. I haven't tried printing it with a .4 nozzle - If you are unsure about steeper-than-45°-overhangs, just print a single one of the 608ZZ-Rollers as a test print. If that one works without supports, everything else will too.