Replacement spool holder for Hephestos 2

thingiverse

This replacement spool holder for the Hephestos 2 has two rolls mounted on ball bearings to hold and run the filament spool. The entire assembly fits snugly on the Hephestos 2's frame, exactly where the stock spool holder attaches. This design runs much quieter than the stock one for me, and also allows for a smoother unrolling of the spool during print jobs thanks to the easy-moving rolls. To build this, you'll need to print: 2 x spoolholder_roll.stl with support from platform 4 x spoolholder_rollend.stl 4 x spoolholder_washer.stl 2 x spoolholder_side.stl 1 x spoolholder_bar.stl 1 x spoolholder_bar_filamentguide.stl (or if you don't want to use the filament guide, another spoolholder_bar.stl) Or just: 1 x spoolholder_plate.stl with support from platform (should fit nicely on the bed of the Hephestos 2) Additionally, you'll need: 4 x 625ZZ ball bearings 4 x M5x16mm screws (e.g. DIN 912) 4 x M5 hex nuts (e.g. DIN 934) 4 x M3x10mm screws (e.g. DIN 912) If you need to make any adjustments, you can find the Fusion360 files here. Print Settings Printer: Hephestos 2 Rafts: No Supports: Yes Resolution: 0.2mm layer height Infill: 15% Notes: You only need support for the two rolls due to the pockets for the bearings. All other parts should print just fine without supports. I printed all parts in orange PLA with two perimeters. Post-Printing Exploded view See the exploded view for assembly instructions. Here's a textual description: Attach one ball bearing each to the upper larger holes in the two sides. To do this, push one M5 screw through the hole, put the washer on it, put the bearing on it, then secure with an M5 nut. Make sure to mirror the assemble for one side. Attach the roll end pieces on both sides of each roll, with the flange facing outside. It should be a snug press fit. If it isn't, you might want to secure things with a bit of super glue. Plug the rolls onto the ball bearing assemblies. Put the two bars between the sides where the 3mm holes are located, screw them together with the M3 screws (it should work just screwing into the plastic). This should make the whole assembly fairly rigid. Slide on top of your Hephestos 2's frame.