Wednesday, November 11, 2015

More Learning

I was running a production run of parts, drilling holes accurate to .00001" position, and suddenly I noticed that Z was not returning to 0.  Was something else broken?  It appears that trying to center drill at 0.5 ipm was confusing it about where Z was?  At 0.2 IPM, no problem.  Perhaps switching to carbide center drill bits would be good.

UPDATE: Even at 0.1 IPM, Z was getting shifted.  I have changed to the glacially slow 0.5 IPM, and increased drill depth to 0.5 to compensate for possible Z errors on start.

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