GrabCAD 模型信息
Bakeneko - 3kg Sumo Robot (Auto/RC) · 模型 123716
Bakeneko & Nekomata — Open Source 3 kg Sumo Robots Guilherme Tronfino and I are sharing our 3 kg sumo robots, which finished 2nd and 5th out of 23 competitors in the RC category at RCX. Guilherme developed the electronics and firmware; Giovani designed the mechanics. Both robots share most components, with differences noted below. MECHANICS • Motors: Chinese Maxon RE40-style 24 V brushed DC. • Wheels: JSumo 45 × 30 mm. • Gear reduction: Bakeneko 3.7:1; Nekomata 4.2:1. • Base magnets: Bakeneko 42× N52 (15 × 5 mm); Nekomata 32× N52 (15 × 5 mm). • Ramp magnets: both use 8× N32 (30 × 20 × 5 mm). • Magnet clearance: ~0.5 mm above the dohyo. • Estimated magnetic force: Bakeneko 225 kgf (173 base + 52 ramp); Nekomata 184 kgf (132 + 52). These are calculator estimates, not measured downforce: https://www.kjmagnetics.com/magnet-strength-calculator.asp • Bases: Bakeneko 5 mm carbon fiber; Nekomata 3D-printed PPA-CF. Other structures are 3D-printed ABS; ramps are PPA-CF. • Supports: 20 MR62ZZ bearings in 10 pairs; self-tapping screws in plastic. ELECTRONICS • Bakeneko: 2× GNB LiHV 6S 850 mAh in series, 45.8 V measured when charged. • Nekomata: 2× GNB LiHV 4S 850 mAh in series, 30.4 V measured when charged. • Motor drivers: 2× FLIPSKY Mini FSESC6.7 PRO 70A (VESC), configured for brushed DC motors. • Custom ESP32-S3 control PCB for RC and autonomous modes. V1 was designed in Altium and used at RCX; V2 was designed in KiCad but had a footprint error. • RC receiver → ESP32-S3 via PPM; ESP32-S3 → VESCs via PWM. FIRMWARE & SENSORS • C with ESP-IDF and minimal FreeRTOS. • At RCX, we used manual RC without sensor assistance. • Autonomous setup: 6× JSumo JS200XF opponent sensors and 4× QRE1113 edge sensors. • Code: https://github.com/tr0fin0/dolphin Disclaimer: It was not possible to upload all files to GrabCAD; there may be inconsistencies in the project assembly.
- 格式
- STEP / IGES、Rendering、SOLIDWORKS
- 分类
- 3D printing、Machine design、Robotics
- 标签
- mega sumo、sumo robot、competition、engineering、robotics
- 数据更新
- 2026-10-17T17:12:42Z
