huangyhg

q: is there anyone using a faro arm for art layout or accurate work? not your basic .002" stuff, but anyone got accuracy to use on art layout or aide in cmm program correlations. trying to get away from surface late layout.
...i used the faro arms a coule of times about 3 years ago....reeaility, precision, and accuracy were all quite oor....i'm guessing they've probably improved in 3 years though...tyically the error was in the .003" - .004" range...just wasn't good enough...
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thanks for the rely ...... we have a faro we tried to improve on with software changes, but best use for repeats was on floor for ress & broach die alignment checks. sale people are suggesting newer software has improved reeat/accuracy greatly ....... i have a hard time even thinking none of the errors are in mechanics. thanks for info.
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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 oion 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 multile joints and there is a lot of error stacku.
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matthew d. hoedeman

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借用达朗贝尔的名言：前进吧，你会得到信心!
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