Bowflex 552

thingiverse

I was gifted a broken set of bowflex selecttech 552 dumbells and couldn't find any other designs that would actually work for them. The other two versions of these disks on Thingiverse caused excessive resistance when trying to adjust the weights, which made it nearly impossible to use. As I've just started learning Fusion 360, be aware that using these disks is a risk you take yourself. I still have not fully tested and vetted out the designs, so proceed with caution. To achieve the best results, I recommend using Duramic PETG filament; it's incredibly strong and produces minimal stringing when properly dialed in. I've only used two filaments so far - Overature and Duramic - but Duramic definitely wins in terms of strength. UPDATE: After printing disk 2, I realized that the design was 1 mm too large, causing the weight to fall off. To resolve this issue, I had to resize the disk and make some slight revisions to the original design. I've also found that printing at 100% infill is essential for a stable and secure fit. When I get the chance, I will upload revised designs for disks 3 and 5, but I won't be revising disk 4 since I haven't needed it yet. If you're interested in obtaining these files, let me know, but be warned that they are still somewhat messy since I'm still learning Fusion 360.