TPU "Rubber" Bands

thingiverse

Yes, they work. These heavy-duty types don't stretch much at all, but they're incredibly strong and I haven't broken one yet. If you don't have a spool of TPU, I would strongly recommend getting some flexible filament around - it's definitely worth the investment. All these spools are designed with two shells total, assuming you have a 0.4mm nozzle. D stands for diameter, W stands for width, and H stands for height. All units are in millimeters. If you want a particular size that isn't posted, just leave a comment and I'll add a file. If you don't have rubber bands on hand, these spools are a great option because they're extremely strong and only take about 8 minutes average to print per band. As always, feel free to suggest improvements.