On 2021-02-07 03:27, Jon Elson wrote:
For a CNC retrofit, you really want
ballscrews, why not find a machine that comes with them from the
factory?
Having got into trouble some time ago when converting from ACME to
ballscrews, I endorse Jon's view.
The problem with ballscres is that you may need to machine to sadle or
the table casting to accommodate the nuts. Machining a stable casting
always invites trouble (warping) and my experience suggests that while
we are always optimistic that it will be fine, its simply won't.
Marcus
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