Catapult msa8 : Side steps.
https://www.thingiverse.com/thing:4678911
Project : catapult msa8
Type: mini size projectile bipedal
Height : 26cm
Weight : 550g
Suitable servo: mg90s, sg92r, mg92b
Components : mg90s micro servo x13= RM85. 3, esp32 dev board(doit) x1=RM22.9, 3.7v 800mah 25c lipo+charger x1=RM28.3, mx2.0 plug(depends on battery) x1=RM1.3, MT3608 voltage regulator x3=RM6.3, mpu6050 gyro x1=RM10, KCD1-101 switch 21*15mm x1=RM5.9, m2 screws 5mm-10mm a lots, 14mm with nuts x13, 20mm x2=RM20(estimate), petg filament=RM15(estimate) . Total=RM194.7=USD44.78
3d stl, blender file, arduino code:
https://drive.google.com/file/d/1xyXPzT0hk66D7zHta6nCdPtONC3kCCYG/view?usp=drivesdk updated code:
https://drive.google.com/file/d/1O7QFbxN6lbttCua7_Niyvslp_1nd5-Aa/view?usp=drivesdkProjectile test :
https://drive.google.com/file/d/1bV4GB8SloMGr4o2u7rU7ZXL0mmd-41Gi/view?usp=drivesdkVictory dance :
https://drive.google.com/file/d/1vVCoIhI_T6LLW6N-qly5FltNdeJO4RdD/view?usp=drivesdkBattle cry:
https://drive.google.com/file/d/1zJGH3Dloy2EYLRopsLflEiyqCV7UFBwY/view?usp=drivesdkFrenzy attack :
https://drive.google.com/file/d/1JIyek81dh50Fonnx5EuSyQWBaHlMvr4t/view?usp=drivesdkTurning:
https://drive.google.com/file/d/11AnWah6As99rCCtFZjC7ntihfJO8JgTp/view?usp=drivesdkSide steps :
https://drive.google.com/file/d/17b0i4wzXuVUeV4sSzburIzs02vjs5wuc/view?usp=drivesdkServo pin for esp32:
pin2 servos[0] body case
pin4 servos[1] right foot
pin12 servos[2] right lower leg
pin13 servos[3] right upper leg
pin14 servos[4] right hip
pin15 servos[5] left hip
pin18 servos[6] left upper leg
pin19 servos[7] left lower leg
pin23 servos[8] left foot
pin25 servos[9] right shoulder
pin26 servos[10] right arm
pin27 servos[11] left shoulder
pin32 servos[12] left arm
...
https://www.youtube.com/watch?v=ZRXA6DDt7Hc