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Unread 07-09-2004, 16:53
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Re: pic: Iso view

Quote:
Originally Posted by Andy Baker
A few years ago, I was using 60% for what I called "working speed" (motor rpms at robot's top speed). The past few years, as our efficiencies have gotten better, this percentage of the free speed has gone up. Last year, we used 75%, I think.

I don't put too much faith in that number, though. It just gets us in the ballpark with regard to ratios, speed, and sizing. Our final number might have been 5% higher or lower, but it is about right.

John, you must have a very light robot or a very efficient drivetrain if you are running at 85% of your free speed.

Andy B.
Andy, I assume you are talking about a dual motor (2 CIM and 2 Drill) drivetrain. The percentage is obviously significantly lower when you have half the maximum power. This question might also explain the discrepancy between John's and your numbers.
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