I've been looking at options to minimize the Z-axis drop on my Micro-mark mill. I've read plenty about gas lifts and counterweights. In both cases, the upward force is close to the vertical column. No matter how well the gibs are adjusted, any play is magnified and the spindle end can still tip down a tiny bit.. My thoughts are if I apply the lifting force (via a counterweight) near the spindle, this will practically eliminate any Z-axis play, even more so than a gas spring or counterweight nears the gibs.
Any thoughts? Am I out in left field?
Thanks,
Karl
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