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Re: rack and pinion.
Try mounting th echain inside a piece of u shaped aluminum track. Something like what mounts to the wall for an adjustable shelf system. You can buy the track at most hardware / home stores. Cheap.
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Chris Fultz
Cyber Blue - Team 234
2016 IRI Planning Committee
2016 IndyRAGE Planning Committee
2010 - Woodie Flowers Award - Championship
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