Started by Edstrom, 10:24, 26 March 19
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Quote from: mjj on 21:57, 28 June 19You nailed it. I opened up the stepper and this is what I found: cracked nylon sleeve and magnet rotating freely around the shaft. Now I can't understand how I was able to read anything at all with the stepper like this.I just IMed the owner with this new piece of information. He gave me written consent to superglue the motor under the influence of a few beers, so I'm going to do the right thing and proceed with the superglue but I have a couple of questions:1. What's the risk of excess glue? As long as I let it dry completely before reassembling the stepper I can't see how it can permanently lock the motor.2. What to do you think about the state of the black rubber on those photos? I don't know what the original shape was. It's not really rubbery... Not gooey either. Actually something in between. Should I remove it completely?EDIT, question 3: what is the "correct" position of the sleeve/magnet at the end of the shaft and what's the tolerance? (ie. how far should the shaft protrude)Thanks, your advice is really helpful!
Quote from: Roverius on 21:22, 28 November 20It is a EME-156 model ME56PB31I was searching for the TP to connect the scope to.I don't find any TP on the board, so maybe someone can point me to where to look at.
Quote from: gerald on 09:58, 29 November 20the test points are grouped on a 5 pin connector at the upper right side on https://www.cpcwiki.eu/imgs/c/c4/EME-156_Bottom.jpg
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