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Unread 15-12-2009, 12:49
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Re: [FTC]: TETRIX DC Motor failure analysis

Indeed, we noticed a large difference in the speed of the motors from the start to the end of competition this past Saturday. I'm not sure whether or not the gearboxes are the cause, but they're definitely suspect after seeing this.

I would recommend teams add "spin up" and "spin down" code to their shooters so that the instant impact of torque is smoothed out over a couple of seconds and hopefully prevents this during a single competition.

You would expect that for $28 per motor/gearbox combo, they would use cheap gears (gearboxes alone are typically $25+). Yet being that Pitsco's website is terrible for engineers who want actual information, I don't ever believe we'll get the types of information we need to keep anything running reliably.
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