Quote:
Originally Posted by squirrel
In the pictures of the failed plates, it looks like the shaft is not fully engaged with the plate. In addition to hardening the plate, it might be worthwhile to look into some type of mod to the shaft to get full engagement.
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Jim,
Yes, you are right. When we first assembled the motors onto the gearboxes, we needed shims to get the spacing right. This was done in accordance with the message from Banebots. After making hasty repairs to the failed plate, we discovered that the .040 shim was not necessary, nor were any mods made to the spacer, pinion or CIM shaft.
After pulling the remaining 3 gearboxes apart, all of which had the .040 spacers, we found these to have similar wear/failure patterns. Reassembly no longer required the shims.
We should have used our heads and run them no-load for a period of time for break-in purposes.
Oh, well, add this one to the "lessons learned" list!
C. B. Petrovic