I like making robots and animatronic stuff, so whenever something like that comes to my plate, I get really enthusiastic about it. Few months ago, I was commissioned to make an animatronic skeleton of the soldier robot for the museum purposes. And yes, it supposed to be big

I didn’t had much time, so I didn’t take preparation photos as usual. This will be the first time we’ll move fast forward onto the roughly finished thing. The whole construction was cut and welded, and the base was supplied from another workshop.

I didn’t get the exact specification for the space between the arm and body, so I designed it to be adjustable for dressing it up in the future.

The initial wiring test.

The angle of the forearm was also made to be adjustable.

Those enclosed massive bearings came in handy because they are actually rose joint-ed, so even more alteration of the figure was possible.

For the motors, I used WV wiper ones, and here you can also see the templates for the marking during the fabrication of the motor mounts.

Thread cutting process. Multiple holes allow further adjustability.

Figuring out where to mount the sensor switch that tells when the arm is extended or retracted.

All the parts were zinc plated, to protect them against the rust.

The wiring detail – this is a two-speed motor, but I was using only one. Speed, not the motor 😀

The next step was the electronics. I mounted the mounting plate to the laser cut and fabricated the frame with rubber shock absorbers, so it can reduce a vibration from machine operating.