Quote:
Originally Posted by R.C.
I can believe +-.001. But +-.0001? How on earth are you measuring that and your holding that easily.
-RC
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A Haas has encoders that only resolve to .0001. It's inconceivable that one could actually hold a .0001 tolerance in practice. Too many factors out of your control-humidity, temperature, residual stress in the part, cutting forces, chip evacuation, expansion rate of the machine throughout the day, etc. I highly doubt any FRC team would even have metrology tools (or environment) capable of measuring .0001. Technically to be highly confident in your measurement you would need a tool capable of measuring to .00001. The average micrometer can measure to .0001.
I would consider our Haas to be of slightly lesser quality than others that I have used/heard of and we can usually get within .0003" (as measured on the machine with it's probe...so not at all a proper means of measurement). In reality I would guess .0005 is the tightest tolerance we can hold without babysitting the machine and changing offsets.