Q: Is there anyone using a Faro arm for part layout or accurate work? Not your basic .002" stuff, but anyone got accuracy to use on part layout or aide in cmm program correlations. Trying to get away from surface plate layout.
thanks for the reply ...... we have a Faro we tried to improve on with software changes, but best use for repeats was on floor for press & broach die alignment checks. Sale people are suggesting newer software has improved repeat/accuracy greatly ....... I have a hard time even thinking none of the errors are in mechanics. thanks for info.
Yeah, the accuracy isn't in the software, it's in the hardware. I mean, look at the thing. It is using (more or less) a disk that is MAYBE 6" in diameter to read the position of an arm that is, say, 6 feet long. Move the end of the arm 0.012:, the disk moves 0.001". HOW are they gonna make scales that can read that correctly? In order to read a 0.001" move, the disk must have encoder increments of 0.00008". ALL the errors are in the mechanics of the thing. Add into this multiple joints and there is a LOT of error stackup.
thanks for the reply ...... we have a Faro we tried to improve on with software changes, but best use for repeats was on floor for press & broach die alignment checks. Sale people are suggesting newer software has improved repeat/accuracy greatly ....... I have a hard time even thinking none of the errors are in mechanics. thanks for info.
Yeah, the accuracy isn't in the software, it's in the hardware. I mean, look at the thing. It is using (more or less) a disk that is MAYBE 6" in diameter to read the position of an arm that is, say, 6 feet long. Move the end of the arm 0.012:, the disk moves 0.001". HOW are they gonna make scales that can read that correctly? In order to read a 0.001" move, the disk must have encoder increments of 0.00008". ALL the errors are in the mechanics of the thing. Add into this multiple joints and there is a LOT of error stackup.
