Download tested STL packs with load ratings and printer settings. Outfit your rack, cables, and storage in hours, for 70–90% less than retail.
Retail attachments are expensive, generic, and rarely fit your exact setup properly. Random files online skip testing, lack load ratings, and print poorly without dialing in settings. Our STL packs are stress-tested with clear settings, so you print once and train daily with confidence.
FitBody3D started when our founder, Alex Ramirez, hacked a grip to fix a nagging elbow pain from narrow cable handles. The quick fix worked, but the print failed under load the next week. That moment sparked a mission: test, rate, and publish fitness prints that hold up. Alex brought a mechanical design background and a home gym obsession, iterating through dozens of prototypes and materials. Early files cut wobble on a quirky rack and saved friends real money. We wrote clear print profiles, documented tests, and standardized fit notes. Today, the catalog helps makers dial prints that feel right and last longer.
Choose a themed pack for cables, storage, or grips based on your setup. In two minutes, you’ll know fit notes, load ratings, and material options.
Grab STL files and the matched print profile for your material. In 10–15 minutes, slice and preview tolerance areas so first prints seat cleanly.
Expect 1.8–3.2 hours for most parts, then simple fit checks and light-load pulls. The first successful pull feels good and takes the worry out of your session.
Mount in minutes using the fit notes and recommended hardware. You get stable, comfortable movement and the satisfaction of gear that finally feels tuned.
One themed STL pack with load ratings and material profiles. Ideal for a specific upgrade.
Three popular packs for cables, grips, and storage—our most-used bundle for home gyms.
Unlimited downloads, all updates, and member tutorials. Best for builders and creators.
I printed two cable heads and a grip in 3.1 hours and saved $128 compared to retail. The knurled insert doesn’t spin and handled a 60 kg pull. It feels purpose-built for my rack.
The PETG profile nailed first layer adhesion and strength. We cut failed prints by about 58% over our baseline. Fit notes were spot on for 2x3 tubing—zero sanding, zero wobble.
Ergonomic diameter options mattered. Clients reported less wrist strain, and my own pulldowns felt smoother. The handle wobble dropped roughly 90% after swapping in their spacer.
I filmed a build with their nylon profile and avoided reprints entirely. Filament use was 36% lower than my old settings, and the hook passed a 20 kg plate hang test.
We equipped three racks with storage cradles and cable heads in one afternoon. Parts were consistent, and the team loved the grip texture. This saved about $420 for the gym—no compromise.
Download tested STL packs with load ratings and printer settings. Outfit your rack, cables, and storage in hours, for 70–90% less than retail.
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