Drive motor options

[Ellis]

Here's their site: http://banebots.com/index.html

In their range of gearboxes (the p60 sizes) suitable for 775 motors (a step up from 550s), only the 16:1 option is close enough to useful (next closest are 4:1 and 64:1). It makes for, at nominal voltage, an output speed of roughly 1250rpm. That is a lot faster than those 36:1 Gimson gearboxes, yes, which spin at around 550rpm. But I'd expect the motors to handle it, they're very punchy.

That is your only option for the 775 motor range from banebots.

They sell many more ratios for their gearboxes suited to 550 motors, including 16:1 again, 20:1 and 26:1. I didn't bother mentioning those above because they're basically the same motors as used in Gimsons, and the overheating problem would be the same. Worse, perhaps, due to the lower reductions. The next reduction up is 64:1, which would make for a very slow robot.

You can get 775 motors coupled to "Magnum" gearboxes, which are 20:1. http://www.robotpower.com/products/magnum775_info.html - looking at 650w from one of those at 18v, I should think that would be enough! Makes for about 900rpm, again at 18v. They look very very solid to me.


It may be cheaper to come up with a custom solution?
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As for smaller shafts, I have never seen that on Banebots, but take a look at their (dodgy!) site, they might do. Could be done on a lathe. Or, you may want to look into modifying the wheels instead of the gearboxes.