Tom Plick's Course Project

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My project is a four-legged robot. Each leg is moved by a joint similar to the windshield-wiper mechanism that Dr. Regli presented in the first (?) week of class.

My robot is somewhat reminiscent of a daddy longlegs with only four legs. My original intent was for the robot to walk like a cat, having three legs on the ground at a time; but in its current configuration, that made it just shuffle back and forth. So, I put little rubber feet on the front legs, and they make the robot drag itself forward. I may change that....

Unlike everyone else in the class, I am using K'nex to build my robot. I have more experience with them and I own a bunch of them already, so this appealed to me more than using Legos. K'nex makes battery-powered motors that one can slip on a rod and have it turn like an axle; currently I am powering the robot with a hand crank. Fortunately, my design doesn't seem to need a lot of torque, so I am fairly confident that the electric motor will drive my beast just as well as my index finger has.

I will post a picture of my robot soon; I am waiting to borrow a digital camera from a friend (I don't own one myself).

Week 2

- I made the legs shorter; the robot was liable to fall down, because I was using gray rods that are all bent from a model I made years ago.

- I found a set of K'nex models for LDraw (http://home.ifriendly.com/~fourfarrs/library.zip) and am going to see how to get them into a CAD program.