Rig 01 · Manipulation
B601 arm
A six-axis arm with a gripper that I brought up from a kit and drive with my own controller instead of a vendor black box.
- 200 Hz
- Custom joint-level control loop
- CAN bus
- Seven motors, integrated and tuned by hand
- 48 V
- Actuation bus on bench power
What it took
- Brought every joint online over CAN, one motor at a time, before anything was allowed to move.
- Chased an elbow that dropped with a thud down to the raw CAN traffic: the stock software was cutting torque once a second and letting gravity win.
- Wrote gravity compensation so the arm holds itself up instead of fighting itself.
What it achieves
- Soft grasp and lift under my own control code.
- A manipulation and safety testbed I understand end to end, from CAN frame to fingertip.