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Erratic RDS


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Contura G2 - RDS/XXT/TL1. Behaving oddly. It jerks when rotating, and sometimes
abruptly stops in the middle of a rotation and errors out. No collisions have occurred.
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Your RDS could be bad. I've been told by a few Zeiss techs that the RDS is only good for so many rotations and then they will wear out. They gave a number of rotations but I can't remember what it was. My company has had to replace a few RDS on our Contura G2 and Spectrum when they started doing funny stuff like you're describing
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I know that Zeiss quantified the RDS life by the number of rotations... but how long did yours last (how many years & running how many shifts?)
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I have been told this as well.
Then Zeiss makes all these unnecessary articulations before and after every tool change... 🙄
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And let's be honest, most of them are refurbished, tested, and then sent out again. I imagine these have less life than a new one. When ours wore out, they brought one in to be installed, and it wasn't working properly. They had to ship in another next day, to be installed.
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You are totally correct. When one of our CMMs needed a new RDS, the replacement showed up with a very large gouge. The Zeiss tech installed it and did not pass his tests. He had to order another one.

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Usually the Zeiss PO will be inflated in case there are other unforeseen issues
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