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Encoder codewheel slipping on CIMple shaft
While assembling our KOP CIMple box tranny's today, we attempted to install the encoders to them. When it came time to install the codewheels, we found that they just slipped on with no force required. In fact, they also spun freely on the shaft. We are not sure if it is a problem with the shaft or the disk. We will be contacting both AndyMark and US Digital to see if they are aware of this issue.
Is anyone else experiencing this issue? I can't imagine we got the only two bad sets in all of FIRST. |
Re: Encoder codewheel slipping on CIMple shaft
We had this happen a couple of years ago. We had to gently compress the codewheel where it grips on the shaft, so that it fits snugly on the shaft. I think we used a vice to carefully compress a little, test and repeat.
Brian |
Re: Encoder codewheel slipping on CIMple shaft
Sometimes the manufacturing tolerances conspire to make the disks very loose. I've also encountered problems in the other direction before, where the encoder disk wouldn't fit without applying uncomfortably high pressure.
A few years ago I think there was a semi-official document from AndyMark showing how to use a pair of pliers to carefully squeeze the plastic and make it fit a bit more snugly. |
Re: Encoder codewheel slipping on CIMple shaft
This happened with our SuperShifters this year. We're re-using the (unmodified, COTS) SuperShifters we purchased in 2008, yet putting new encoders on them. In 2008 we didn't have a problem at all; this year we had to squeeze one of the encoders a bit. It works fine now though.
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Re: Encoder codewheel slipping on CIMple shaft
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