Quote:
Originally Posted by Michael Hill
In your belt runs, do you add anything to the nominal C-C distance? We had designed in about a 0.002 in our shooter belt (3mm GT3 belt), but since it was waterjet out, I can't be certain it held to .002 anyway. Regardless, it worked out fine for us. I've just noticed the west coast products calculator adds a bit.
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The fixed c-c runs in our drivetrain were long by quite a bit, I think we've had a few runs were we've added as much as 50 thou. That was early on though and on runs of about 10 inches, when we first tried belts we tested a few different things and went with what we thought was good. Recently we've been trying to go closer to no addition, I don't know what the current situation is on that.
The way our drive has been set up in the past with 22T pulleys I don't think it's actually possible for the belts to skip without breaking teeth.
As far as gearbox belts, we've always built in some way to tension them, the current multiple mounting hole pattern has each pair vary by 5 thou I believe.