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rein-o
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Post subject: Re: CLD-99 Spindle shaft turning inside clamp Posted: 20 Oct 2019, 04:15 |
Jedi Master |
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Joined: 03 May 2004, 19:05 Posts: 8119 Location: Dullaware Has thanked: 1228 times Been thanked: 851 times
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Sorry I really don't know how to repair but I do know that the epoxy will fix it for sure If you do need to remove it you are SOL so yes make sure you have it at the right height etc.
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remav
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Post subject: Re: CLD-99 Spindle shaft turning inside clamp Posted: 23 Oct 2019, 06:04 |
Honest fan |
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Joined: 15 Aug 2018, 02:00 Posts: 100 Location: United States Has thanked: 2 times Been thanked: 13 times
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Nope, no more errors after my post and the extra added weight is so small as to be totally inconsequential. There's only about a 1mm layer of glue or epoxy around the shaft from the factory that holds the clamp to the shaft. This fix adds several more mm (width of the washers) greatly reinforcing the weakest link of the structure, but the two tiny washers are probably less than 2mm tall total. With the epoxy I think we're talking only a couple grams. My best guess is that the alignment on the motor is going to be slightly different when moved to a new machine especially since there's a pretty wide tolerance on "correct" height. My epoxy/washer spacers are certainly not going to put the clamp at the exact height it was. I just chose a spacing that put the RPM wheel 1/2 way between the top & bottom of the sensor gap. I wish I knew what the bottom gap spec for a new machine is, but one possible cause listed on the error chart is "bearing too tight". I probably moved the placement up just a hair thus putting slightly more down force when it clamps. Playing discs probably allowed the bearing to re-seat; a much preferred situation than if it had been loosened & left with more play than before. (I think, ...leveraging my quite possibly useless knowledge on "pre-load" effects on wheel bearings ) Whether this shortened or extended this motor's life may eventually be revealed, right? Well, at least I have a spare motor for that day and for most of today it performed flawlessly.
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