Originally Posted by atemylunch I want as much precision/repeatability as I can resonably get.
To drive the bridge, twin preloaded .75 or 1" acme screws, chain sync.
I'm not sure what to use for a spindle(I'm leaning tward Porter Cable).
What is the best way(s) to connect the stepper motors to the screws?
Thanks |
I'd use GT2 timing belts instead of chain to sync the screws. I don't think chain can give quite the same accuracy.
The Porter Cable 7518 is probably the best Router to use, but if you have a big enough budget, a Columbo or Perske (or similar) would be a better option, if you want a lot of power.
I think the best way is helical couplers, or timing belts. The belts give you the option of changing gear ratios if you need to.
If you can, then I'd mill the mounting surfaces for the rails. It can't hurt.