I use a Hafco cl40a lathe. The cross slide dial is inaccurate and has been so since new as told by the previous owner. The lathe has an accurate DS10 DRO. I can verify by the DRO and my micrometer the lathe is accurate and can consistently be within 0.02mm on the final cut. Sometime better. However, the cross-slide dial is not even close. 1 mm on the cross-slide dial show 1.5mm on the DRO. 2.0mm show 3.0mm on the DRO and 5mm on the cross-slide shows roughly 8mm on the DRO. The DRO is correct. To me it looks like something is mismatched from new.

I’m thinking either the internal screw of the cross-slide dials are mismatched.


What do others think?


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