Poll: How many CIMs are you using?

[Anupam Goli]

Originally Posted by Knufire

4 CIMs, one BB 775. Lift time < 0.5s.

I take it you're using a PTO? or a clever passive intake + low goal mechanism?

We're using 4 CIMS in our drivetrain, as well as 2 miniCIMS, 3 BAGs, and maybe another CIM or 2 elsewhere. (power hungry robot...)

[Oblarg]

449: 6 CIMs on drive, 1 bag on intake.

5830: 4 CIMs on drive, 1 bag on intake.

[Paul T.]

were doing 4 cims on the drive train, you would have to ask the students what else. i just fix things that break and machine things that they tell me are impossible.

what really concerns me is the 17 teams that are not using cims. well except apple pie, btw if you need a few extra throttle motors we'll hook you up. i think theirs one in my wives toyota i dont think she'll notice its gone.

[KrazyCarl92]

5 CIMs
no other motors (for now)

[RonnyV]

4 Cims
2 Bag
2 Snowblower
2 775Pro

[Ian Good]

4 Cim Drive
2-3 Bag Motors
2 775pros

[PayneTrain]

Originally Posted by Anupam Goli

I take it you're using a PTO? or a clever passive intake + low goal mechanism?

We're using 4 CIMS in our drivetrain, as well as 2 miniCIMS, 3 BAGs, and maybe another CIM or 2 elsewhere. (power hungry robot...)

Skid drive with two rear wheels powered by a 775pro and 4 CIMs on the climber.

[jkelleyrtp]

I'm curious as to the appeal for bag motors for the intake. Originally we had bag motors as well, but after the reduction required to get that 13,000 rpm to something usable and the potential for busting a motor, we switched to a minicim. It's more robust, requires less reduction, and can be run longer without overheating. The two disadvantages would be the size and power draw, but I don't find it significant enough to get a 100:1 versa and not direct drive.

[apalrd]

Originally Posted by jkelleyrtp

I'm curious as to the appeal for bag motors for the intake. Originally we had bag motors as well, but after the reduction required to get that 13,000 rpm to something usable and the potential for busting a motor, we switched to a minicim. It's more robust, requires less reduction, and can be run longer without overheating. The two disadvantages would be the size and power draw, but I don't find it significant enough to get a 100:1 versa and not direct drive.

It's all about power and weight.

BAG motors are good for ~150 watts of power and is listed at 0.71 lbs
MiniCIMs are good for ~215 and 2.16 lbs

So changing from a BAG motor to a MiniCIM gets you ~45% more power but with 200% more weight. For comparison, a 775Pro is rated at 130% more power and 12% more weight to a BAG.

If you don't need 215 watts, a BAG motor is a lighter and smaller alternative. If you need 215 watts or more, than the BAG motor isn't the right choice. Overall though, it's an excellent motor for most small mechanisms on robots.

[piersklein]

4 CIM
2 Mini CIM
3 775pro

[BetaHelix]

4 Cim drive
2 Mini shooter
2 Pg intake actuation
2 775pro intake roller