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Step 16Linear Slides
Without something holding the two segments of the robot in the same plane, the top segment would turn when the threaded rod turned, instead of moving up or down. To keep the two halves of the robot in the same plane, I built linear slides out of two steel rods and brass tubing.
First, I added a pair of aluminum bars to the segment of the robot without the electronics, to match the pair on the other segment. To mount the steel rods and the brass tubing to these, I made a clamp system similar to the clamps holding the feet in place. To do this for the large diameter rods, I first clamped two 3/4" squares of aluminum together. I then drilled a 1/8" hole down the intersection of the squares, and then took them apart. I drilled two holes in each square, and corresponding holes in each supporting arm. Then I repeated the process four times. To get the slides perfectly parallel to the threaded rod, I had to bend up the supporting arms on the non-electronics segment of the robot.
First, I added a pair of aluminum bars to the segment of the robot without the electronics, to match the pair on the other segment. To mount the steel rods and the brass tubing to these, I made a clamp system similar to the clamps holding the feet in place. To do this for the large diameter rods, I first clamped two 3/4" squares of aluminum together. I then drilled a 1/8" hole down the intersection of the squares, and then took them apart. I drilled two holes in each square, and corresponding holes in each supporting arm. Then I repeated the process four times. To get the slides perfectly parallel to the threaded rod, I had to bend up the supporting arms on the non-electronics segment of the robot.
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