Andrew, I don't want to rain on your parade, but I have come to the conclusion that a manual Bridgeport converted to cnc is neither fish nor fowl, and isn't particularly good as a manual machine (after conversion) or a cnc. Get yourself a broken Bridgeport MDI or Interact or Boss machine (which go for peanuts when the controllers die). The iron is very solid and will come complete with (preferably) matched servo motors (or steppers in the case of the BOSS ones) - and also already fitted ball screws. Do your conversion on such a machine and you end up with the best of both worlds rather than the worst of each.
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Andrew Mawson
East Sussex, UK |