Hey all – does anyone here have experience working with these GM6208 gimbal motors? I’m trying to find out the peak current that these will tolerate, but the info online is sparse.
The manufacturer lists “working current” as “3-5S”, but I think something was lost in translation (since as far as I can tell, that’s just a battery configuration).
I’d guess around 600mA continuous, 1.2A peak.
My measurements on other motors give about 50W/kg waste heat for continuous use. The listed resistance is 32 ohms and weight ~250g, so 0.625A²·32Ω=12.5W. So the listed 1.2A is probably peak current.
My measurements also give 1Nm/kg for motors that weigh 100 grams or less, 1.5Nm/kg for 150g, and higher for 500g (my driver overheated first). So I’d guess 0.4-0.5Nm for continuous torque. The listed 3.6kg·cm is 0.35Nm, so that’s probably a conservative continuous rating.
Thanks, this is super helpful! Those torque per kilogram measurements are useful too, I had been looking for a rule-of-thumb like that. (Did you document that in another post? Just curious, no worries if not.)
I think I've mentioned it in a few other posts, but I need to collect more data before I can do a proper writeup with definitive rules of thumb.
– dekutree64