I built a light box to mount behind the 10 Chest Buttons. I started with an Aluminum "project box" cover and bent the sides so that they were a little more than the original 90 deg. I cut 1/4 inch PVC for the top and bottom of the box. I was able to cut these pieces and shape them to fit the radius inside the torso.
I installed two lamp sockets in from the back of the light box. This will allow me to change the lamps without removing the entire box.
I mounted the light box onto two sets of bolts which were anchored in 1/4 inch PVC strips on each side of where the box mounts. These mounts were glued to the inside of the torso with fiberglass resin. I also installed the belly lights and belly lights micro controller circuit board on two custom PC board mounts. I made these mounts from PVC which I cut to fit the inside contour of the arm wells. I cut a slot on the inside of the mounts and slid the circuit board into place.
Read more: B9 Robot Torso Lighting
II've been working on the torso drive system. I want to be able to rotate the torso a full 180 degrees left and 180 degrees right. I envision a sentry mode where the robot scans left and right stopping at different intervals, appearing to be on guard.
This is the motor that will rotate the torso. I mounted a surplus electric auto window motor (plenty of torque) under the metal plate that the torso mounts to. I wanted a system that would "self-adjust" and maintain a constant pressure on the underside of the torso mount. I mounted the motor to a platform that has one end on a hinge and the other end of the platform is spring loaded. The idea is that it presses up against the torso mounting plate and the friction provides the movement. I had to add a third spring (two pushing and the third pulling). It rotated fine in one direction but skipped a little in the opposite direction.
It seems that driving in one direction causes the motor to work with the springs and in the other directions it is fighting the springs. Here's the torso mounting plate and the stacked shelves with the speaker and amplifier in place.
Well, I think I have a blown Oopic micro controller. Not sure what I did wrong. The Oopic was going to control the direction and speed of the torso motor. One minute, it was working and the next it wasn't. I'm looking into what I can do to replace it. I have communicated with both the Oopic tech folks and the Magnevation people who make the motor controller board. I need to find out why it failed and if there is something I overlooked when hooking the two together.
Read more: B9 Robot Torso Rotation