Climbing Grip Trainer CAD Generator
Create Your Personalized Edge
Upload a photo of your hand to generate a custom-fit climbing edge.
Take the Photo
Review & Adjust
Get Your Edge
How it works
Take the Photo
Review & Adjust
Get Your Edge
Upload Photo
About
Training
3D Print
Upload Hand Photo
You
- Place a credit-card-sized card on a horizontal surface (do not show any sensitive information).
- Place a single hand flat near the card, without touching it.
- Keep fingers close, with a small gap between the fingertips, palm facing up.
- Make sure all 4 fingers are flat — all joints and tips in contact with the surface.
Helper
- Hold the phone roughly 1 m above the hand, parallel to the surface, centered on the hand.
- Use a flash. If you don't see the creases in the photo, the software won't either.
Tips for a good photo ▸
- Use your phone's highest-resolution camera (12 MP+).
- Avoid notched or irregularly shaped cards.
- Exact distance is not critical, focus on keeping the phone parallel and centered.
- Prefer optical zoom — avoid digital zoom.
✓ Good
✗ Bad
A fully automated pipeline that generates a custom 3D-printed climbing edge from a single hand photo. Computer vision measures your hand; Python generates a unique geometry for each user.
- Consistent joint angles: comfortable, healthy joint positioning across all morphologies.
- Secure grip: the geometry keeps fingers in place without chalk while form is maintained.
- Longer sets: the comfortable geometry and the grip let you hold 30s+ sets, bringing finger training into the time-under-tension ranges used in tendon rehab and hypertrophy protocols, compared to the 6–10s a standard edge allows.
- Targeted recruitment: open-hand or crimp-specific training (FDP or FDS muscles respectively), with effective pinky engagement.
- Warmup: the fit keeps a cold-to-max ramp comfortable, and consistent joint angles make it safer than on a hangboard.
Open Hand Finger Position
- Distal Phalanx (tip): Horizontal
- Middle Phalanx: 45° angle
- Proximal Phalanx (base): Vertical
- Poor form may allow heavier weight but increases injury risk.
Crimp Finger Position
- Proximal Phalanx (base): Vertical
- Middle Phalanx: Slightly above horizontal
Training Protocol
- Volume: 3 sets of 30–240 seconds.
- Onboarding: Start slowly, avoid failure.
- Chalk: Do not use — slipping means poor form.
Crimp (FDS) — up to 100 kg
- Wall thickness: 2.9 mm
- Infill: 35%
- Material: PLA or PETG
Open Hand (FDP) — up to 60 kg
- Wall thickness: 1.7 mm
- Infill: 20%
- Material: PLA or PETG
Orientation & Supports
- Supports: Enable for both variants.
- Print orientation chosen as a compromise between low surface friction and structural strength — grip relies on geometry rather than texture.
Safety
- Open Hand model: heavily over-engineered — failure is extremely unlikely.
- Crimp model: strength depends on layer adhesion — varies by printer and filament.
- Optional strengthening:
- 100% infill
- Print flat on side (eliminates layer-adhesion weakness, trade-off: higher friction)
- Worst-case geometry held 300 kg — PLA, Bambu A1 Mini, default angle.
About
Training
3D Print
A fully automated pipeline that generates a custom 3D-printed climbing edge from a single hand photo. Computer vision measures your hand; Python generates a unique geometry per user.
Since hand morphology varies significantly between climbers, a standard edge puts every user's fingers in a different position, often into hyperextension or causing uneven joint loading.
- Consistent joint angles: comfortable, healthy joint positioning across all morphologies.
- Secure grip: the geometry keeps fingers in place without chalk while form is maintained.
- Longer sets: the comfortable geometry and the grip let you hold 30s+ sets, bringing finger training into the time-under-tension ranges used in tendon rehab and hypertrophy protocols, compared to the 6–10s a standard edge allows.
- Targeted recruitment: open-hand or crimp-specific training (FDP or FDS muscles respectively), with effective pinky engagement.
- Warmup: the fit keeps a cold-to-max ramp comfortable, and consistent joint angles make it safer than on a hangboard.
Open Hand Finger Position
- Distal Phalanx (tip): Horizontal
- Middle Phalanx: 45° angle
- Proximal Phalanx (base): Vertical
- Poor form may allow heavier weight but increases injury risk and reduces FDP isolation.
Crimp Finger Position
- Proximal Phalanx (base): Vertical
- Middle Phalanx: Slightly above horizontal
Training Protocol
- Volume: 3 sets of 30–240 seconds.
- Onboarding: Start slowly without reaching failure.
- Chalk: Do not use — slipping means you can't maintain proper form.
Open Hand Troubleshooting
- Crimp Compensation: Reduce intensity and focus on form.
- Pinky Curling: Try moving the pinky laterally along the edge. The curl may actually be the ring finger crimping (weak FDP), effectively bringing the pinky hold up.
Crimp (FDS) — up to 100 kg recommended load
2.9 mm
35%
PLA or PETG
Open Hand (FDP) — up to 60 kg recommended load
1.7 mm
20%
PLA or PETG
Orientation & Supports
- Supports: Enable for both variants.
- Print orientation chosen as a compromise between low surface friction and structural strength — grip relies on geometry rather than texture.
Safety
Open Hand model — heavily over-engineered; failure is extremely unlikely.
Crimp model — strength depends on layer adhesion (varies by printer and filament).
- Optional strengthening:
- 100% infill
- Print flat on side (eliminates layer-adhesion weakness, trade-off: higher friction)
- Worst-case geometry held 300 kg — PLA, Bambu A1 Mini, default angle.
Initializing…