CIM Like motors for non-FRC use

[Ari423]

Does anyone know of a motor similar (CIMilar?) to a CIM but larger with more power? The idea being that you would only need one motor per drivetrain gearbox instead of 2 or 3. I believe some year before I joined the rules allowed for a larger CIM-style motor, but according to my mentor it didn't get much use and wasn't allowed again. I've seen similar motors on eBay and AliExpress like this one, but I don't really trust them (especially because the specs listed on this model don't come near to the 800W claim).

[Harrison.Smith]

Originally Posted by Ari423

Does anyone know of a motor similar (CIMilar?) to a CIM but larger with more power? The idea being that you would only need one motor per drivetrain gearbox instead of 2 or 3. I believe some year before I joined the rules allowed for a larger CIM-style motor, but according to my mentor it didn't get much use and wasn't allowed again. I've seen similar motors on eBay and AliExpress like this one, but I don't really trust them (especially because the specs listed on this model don't come near to the 800W claim).

I remember seeing megaCIMs (doubt that was the name) around the lab before. Mentors always had said they were just a precursor to the standard cim now.

[EricH]

Originally Posted by Ari423

Does anyone know of a motor similar (CIMilar?) to a CIM but larger with more power? The idea being that you would only need one motor per drivetrain gearbox instead of 2 or 3. I believe some year before I joined the rules allowed for a larger CIM-style motor, but according to my mentor it didn't get much use and wasn't allowed again. I've seen similar motors on eBay and AliExpress like this one, but I don't really trust them (especially because the specs listed on this model don't come near to the 800W claim).

Originally Posted by Harrison.Smith

I remember seeing megaCIMs (doubt that was the name) around the lab before. Mentors always had said they were just a precursor to the standard cim now.

The Big CIM is a bit of a misnomer. Here's the deal on those, from someone who was there the two(?) years they were legal:

They're electric minibike motors, came with belt drive system. They're bigger than the standard CIM, BUT they were also just a bit different. I want to say it was faster speed, slightly less torque. They were legal in '06 and I want to say '07. I know one was used on a shooter... geared up!


That being said, CIM motors don't just come in FRC sizes. I've seen 'em big enough to haul a (literal) ton at walking speed with just one, given the proper setup of course. May I suggest poking around the manufacturer's site? You just might find something in the right range.

[GeeTwo]

Originally Posted by Harrison.Smith

I remember seeing megaCIMs (doubt that was the name) around the lab before. Mentors always had said they were just a precursor to the standard cim now.

Here are the performance curves for the old 3 inch CIM Karthik posted a few years back. They actually had a lower peak power than the 2.5" CIM, though the torque (and in particular torque per amp) was better.

[troy_dietz]

The larger CIM motor is part number FP801-005 and was commonly referred to as the "minibike" motor. It was legal in 2006 and 2007.

Preformance Sheet: http://web.archive.org/web/200612142..._FR801-005.pdf

Edit: You may also want to look into AmpFlow and similar motors. They've become practically the equivalent of the CIM in combat robotics, but that's starting to change with the increasing popularity of brushless drive motors.

[Jared Russell]

Originally Posted by Ari423

Does anyone know of a motor similar (CIMilar?) to a CIM but larger with more power? The idea being that you would only need one motor per drivetrain gearbox instead of 2 or 3. I believe some year before I joined the rules allowed for a larger CIM-style motor, but according to my mentor it didn't get much use and wasn't allowed again. I've seen similar motors on eBay and AliExpress like this one, but I don't really trust them (especially because the specs listed on this model don't come near to the 800W claim).

Many BattleBots teams swear by Magmotors: http://magmotor.com/brushed/brushed.html