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Below is a simple test work up of a track drive. Next I’ll have to get some track material and work on adding the cogs to pull the track.
http://www.geocities.com/zoomkat/pix/track1.jpg
http://www.geocities.com/zoomkat/pix/track2.jpg
It looks good but will regular tape hold that mechanism on the servo? Im using doublesided foam type for my setup, works good.
The servo horn is attached to the wood dowel collar block using the thumb tacks pictured. The little holes in the servo horn are ~the same size as the shaft on the thumb tacks. I’ve found that the thumb tacks are much easier to use than small tack nails and hold pretty well. They are easier to remove if desired. Hot glue is another possible removable attach method. The bearing is a roller skate wheel bearing from the local roller rink. They sell their new bulk wheel bearings for $.50 each, but they gave me some used ones for free to test with. The track cog is a thread type of spool from the craft section at Walmart, as is the .25" wood dowel. The servo would be one set for continuous rotation or used as a gear motor.
OK cleared up! 