Post
105
SO-ARM 101 vs SO-ARM 102: stiffness
Same rig, same 300 g hanging from the gripper, dial indicator in the same spot.
• SO-ARM 101 — 7.5 mm
• SO-ARM 102 — 3.9 mm
About half the deflection. Both arms are built with printed servo dummies, so this is the structure being compared, not the motors. Parts printed at 25 % infill.
Same rig, same 300 g hanging from the gripper, dial indicator in the same spot.
• SO-ARM 101 — 7.5 mm
• SO-ARM 102 — 3.9 mm
About half the deflection. Both arms are built with printed servo dummies, so this is the structure being compared, not the motors. Parts printed at 25 % infill.