Stress & Strength TPU Resistance/Squeeze Rings
Print Profile(9)
Bill of Materials
Description
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UPDATE 24.01.2026: as per feedback and to take into consideration even more potential injury recovery needs, I have added 2 profiles with less infill to make the force needed to exercise lower:
- XXS → Starting point (5% infill) → Lightest design, starting point for wrist/hand injuries
- XS → Next step (10% infill) → A step up from XXS, for injury progression without making a big jump to S strength
This is a set of TPU resistance rings (in a doughnut shape) designed for functional exercise, grip training, injury recovery, and muscle development. The print focuses entirely on usability and function — not aesthetics.
You’ll notice layer separation lines when bending the TPU — this is absolutely normal and unavoidable when printing TPU in this shape, but the rings are structurally sound and fully functional thanks to their internal design. Please do not mistake these for printing flaws; the rings have been extensively tested and hold up perfectly under repeated use.
Ring Sizes & Intended Use:
- S → Easiest to squeeze (approx. 15% infill) → Ideal for stress relief or early injury recovery
- M → Still easy (20% infill) → Light grip strength
- L → Medium resistance (25% infill) → Transition from therapy to training
- XL → High resistance (30% infill) → Grip & muscle development
- XXL → Very high resistance (35% infill) → Serious grip/muscle training
Each ring is marked with reverse embossed letters (S to XXL) so you can quickly grab the one you want.
5-Ring Holder:
A matching holder is included — using my signature body-extrusion design for material savings and an interesting look. It has a small finger handle on top for easy carrying.
Print Notes:
- Designed for Bambu TPU 95A HF
- Custom supports included for easy removal
- Functional design first → Visual imperfections from TPU bending are expected but do not affect usability.
If you're looking for a functional, adjustable resistance trainer, this is it. Tested and proven in daily use. Enjoy!
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License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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