On 19 Oct 2004 08:51:30 -0700, firstname.lastname@example.org (Neal)
I once made a jury rig surface grinder based on a spare
Myford ML7 bed. Y traverse was manual but the X traverse was
Instead of a rack I used a stretched tight bicycle
chain. A geared down 24v dc motor drove a standard bicycle
sprocket meshed with the chain and a microswitch at each end
tripped a relay to reverse the motor. Worked fine.
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