🏎️ RC Tuner — Photo Measurement

Photo requirements: Top-down view of one side of the chassis. Front of chassis at top of image. Include the full wheel (used for scale calibration). Good lighting, minimal shadows. Phone camera works fine.

Select a known reference dimension to establish the pixel-to-mm scale. Wheel/rim lip: 54mm (visible with wheel mounted) • Wheel hex: 12mm (always visible) • Wheel diameter: ~52mm (tire, varies with compound).

Try the photo measurement flow with high-quality reference photos from the image library.

TC8 Top Down TC8 Front TC8 Rear TC8 3Q Front TC8 3Q Rear TC8 D-Bone TC8 Other Side A800RR #1 A800RR #2 A800RR #3 A800RR #4 A800RR #5 A800RR #6 A800RR #7 A800RR #8 A800RR #9 A800RR #10 MTC3 Top MTC3 Front MTC3 Rear MTC3 Bottom MTC3 L-Front MTC2R Side MTC2R Front MTC2R Rear MTC2R Corner TRF421x S1P1 TRF421x S1P2 TRF421x S1P3 TRF421x Kit TRF421x Img1 TRF421x Img2 TRF421x Img3 TRF421x Img4 TRF421x Img5 TRF421x Img6 TRF421x Img7

The system will attempt to detect suspension pickup points from the photo. You can also tap to mark points manually.

1. Scale calibration: Select a known reference dimension — rim lip exterior (54mm), wheel hex (12mm), or wheel diameter (~52mm). The system uses this to establish pixels-per-mm scale, making measurements independent of photo distance or angle.

2. Pickup point detection: Computer vision identifies hinge pins, ball studs, and suspension arm endpoints. You can verify or manually adjust each point.

3. Geometry calculation: From the pickup points, the system calculates link lengths, arm angles, instant center, and roll center — the same values needed for the setup advisor.

4. Multi-photo verification: Take 2-3 photos of the same chassis. The system cross-validates measurements across photos for higher confidence.