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Logan Lathe CNC Conversion

With the cross slide ballscrew mounted and the stepper wired, it was time to mount it to the slide.
There's several ways to do it, and after a bit of pondering, I decided on a setup that, while a bit crude,
would be fairly easy, functional and strong. I started with a pair of double-row angular-contact bearings.

Logan Lathe CNC Conversion

I whipped up two quick plates out of 4" x 1/2" aluminum flat stock, then located,
drilled and bored a mounting hole through both of them.

Logan Lathe CNC Conversion

The bearings were finger-press fits, with just a 0.0005" clearance, with the tops
of the plates just level with the top of the slide.

Logan Lathe CNC Conversion

After determining where would be the best place, I drilled three slightly-oversize mounting holes
through the two plates, for 3/8" bolts.

Logan Lathe CNC Conversion

I then made a thin 10-ga aluminum "thrust plate" to go between the two main plates.
I could have bored a stepped hole in one plate, or even bored a stepped hole in a single, thick plate,
but this was all kind of designed on the fly- and I fully expect this to be in effect a prototype,
and will likely be extensively changed later.

Logan Lathe CNC Conversion

With the three plates on place, I was able to carefully locate the holes for the mounting screws.

Logan Lathe CNC Conversion

Then, carefully drilled and tapped in the slide.

Logan Lathe CNC Conversion

And (sort of) mounted, with temporary screws.

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