It occurs to me that even if I made perfectly matched replacement pillow blocks, I might still need to account for misalignment from their mounting surfaces on the lathe base casting not being coplanar and parallel to the ways.
It occurs to me that even if I made perfectly matched replacement pillow blocks, I might still need to account for misalignment from their mounting surfaces on the lathe base casting not being coplanar and parallel to the ways.
Yep. Unfortunately, in order to mate with a nonperfect lathe casting it will be necessary to make an imperfect pillow block . But there are reasons why shims have been around for a long time.
When I was faced with the same problem, I cheated and used Timesaver to lap them. Once the lead screw was smooth, I made a bronze thrust washer to take up the end play. Kinda hack but it's still smooth 9 years later.
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