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Converting a Grizzly G8689 Mini Mill to 3-axis CNC, Part 12:



The X-Axis was a lot easier- the bearing block I'd made had plenty of room (again, sorta) to fit the stepper mount.
So it was a simple (again, sorta) matter of locating off the center hole, and measuring out from there to drill all four corners.



The only fly in that particular ointment being the lower two, naturally, landed right over the two bottom clamping bolts.
Fortunately, there's enough thread there to get a decent bite with the screws, and as it turned out, with the shortened
stepper mount (and shortened shaft, just like the first one) a couple of 2" screws were just exactly the perfect length to fit.



After that, I marked things out a bit, and milled off some of the excess on the mounting block,
you know, to lower wind resistance and improve fuel economy.



Cleaned, smoothed and deburred it's ready to go back on.



Again, the bearing goes back in, the locking collar and then the coupler...



And then the stepper and mount get slipped into place, bolted down, and the coupler tightened like before.



And done! We still need an end cap/bearing carrier for the left end, but we'll get to that.






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