Small Robot Arm – Wrist Progress
March 15, 2018
I am waiting to add the encoders and limit switches until I am confident I won’t need to make allowances for the mechanisms. The gripper is just about ready for this hardware. My friend, John Klein, and I discussed a better source for encoders than I was considering. His sources are so much better for the electronics. I’ll probably throw myself at his mercy for the quadrature encoder code. So, I will need at least 2 of these arms. One for the Programming Maestro to program, and one for me to experiment.
I probably could have waited a couple hours to post this. It would be more impressive to see the transmission for the wrist-pitch Degree of Freedom. The wrist-roll degree of freedom is visible in the video posted here. At this pace, I seem to be posting each time I complete a mechanism for a DOF.
Encoders and limit switches to follow… gripper first… working from end-effector to ground on every aspect of the arm.
Small Robot Arm – Gripper Started
March 12, 2018
I have wanted to build a small robotic arm for a little while and so I decided to get it started. I have pretty good progress on the gripper and expect I should have it in the rest of the arm fabricated by the end of this month. I will likely have to send out to some firm to have a rapid prototype in order to save me some time.
The width of the gripper fully opened is 50 mm, or roughly 2 inches.
More designs, sketches, and 3-D models to follow!