Asked — Edited

Need Ideas On Waist And Neck Rotation For Magnus

Here's the problem. Magnus will be mostly remote controlled as far as driving him around, making his arms move, waist rotation, neck rotation and such. However, certain features would be helpful if they were automated. Two such items are the neck and waist. If, for example, I rotate the waist via R/C to the right or left and then want to center it straight ahead again I want it to do this automatically. This would be more simple if I could use servos. But, I am having to use gear-motors due to his large size. I need some kind of feedback circuit or whatever....

I was thinking of maybe using an EZ-B and some type of slotted IR sensors placed at certain locations in the ARC of the waist or neck travel zone.

Any ideas for circuits, parts or mechanical stuff out there in forum land? All ideas welcome!


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#10  

I have one other suggestion Rgordon. I am using a similar set up to the one that you have here. But instead of the timing belt, I am putting a dado groove into the doughnut just wide enough to force a bicycle chain into it. Of course, I'll be using a sprocket on the motor instead of the cog. Due to the weight of Magnus, it might be more dependable than gluing a rubber belt on to it.