Hey guys, I have 5 standard servos sitting around here and I had some inspiration to make a worm robot.
I did some quick sketches and made a model out of cardboard. Its going to pick up its tail first and put it on the ground closer to body, then the wave just travels down the body eventually to the head.
With only 5 servos it has 6 segments, 4 up/down pivots and 1 left/right pivot in the middle for turning. Turning might be tricky, so Im going to mock up a better version with packing foam and play around before commiting to it.