Poll: How many CIMs are you using?

[MaGiC_PiKaChU]

Because polls are fun!

[waialua359]

Last year we used 2, this year 2.;)

[GeeTwo]

Four drive CIMs this year, supplemented with a PG-27 on our intake wheels and pneumatics for intake extend/retract, stretching the launch springs, and engaging/releasing the latch on the launch springs.

Last year we also had four CIMs, three for the H/slide drive, and one for the lift, no other actuators. (We had a passive pickup.)

[Dibit1010]

We are using 6 CIMs, 2 miniCIMs, and two window motors

[Dalas]

I voted 6, but we're actually using 4-CIMs and 4-miniCIMs (in our drivetrain), as well as 2 RS775's and another mini-CIM for a mechanism.

[Sperkowsky]

5 Cims 2 Mini cims. We were originally using 6 cims 2 mini cims and 2 bags but we abandoned a mechanism.

[Type]

6 cims, 2 mini cims and a 775

[Mineboy2300]

We are using 4 cims for our drive train, a mini cim for our intake, and 2 banebots (or servos if we get them working) for our arm.

[Boltman]

6 Sim, 5 other

[MrJohnston]

Currently 4, but we have a couple of mechanisms that might need a little more power than the current motors, so it could very well be six by the end of the week....

There have been a few times that we have put six on our drive train....

[MrJohnston]

Currently 4, but we have a couple of mechanisms that might need a little more power than the current motors, so it could very well be six by the end of the week....

There have been a few times that we have put six on our drive train....

I think we have a total of 13 motors....

[Chris is me]

4 CIMs 3 mini 3 BAG. That's the whole thing.

[dradel]

4 cims, 2 775 pro, 1 snowblower motor, 1 window motor, and if it works out 2 bag motors

[JacobD]

4 Mini-cims 2 cims 2 bags and a pg71

You can imagine the power draw

[Bob Steele]

6 CIMS (drive train)
2 MiniCIMS
8 775 Pros

[MaGiC_PiKaChU]

6 CIMS (drive train)
2 MiniCIMS
8 775 Pros

and i tought we were insane

[AngryCalculator]

4 CIMs drivetrain
2 CIMs Climber
4 775pros shooter/intake
One bag motor Intake

[mrnoble]

4 CIM 2 bag 2 775; we're leaving a couple extra talons in in case we manage another mechanism.

[Anthony Galea]

6 CIMs, 2 775pros, may add a BAG motor after some problems we found today at practice.

[trumpthero786]

4 CIMs
2 Mini-CIMs
5 BAGs

[Max Boord]

4 cim drivetrain (may switch to 6)
6 775pros (2 for intake rollers, 2 to tilt intake, and 2 for shooting).

[pipsqueaker]

2 bags, a mini, and 6 cims

[Peyton Yeung]

4 CIMs
2 bags

[Caleb Sykes]

5 CIMs, 1 Mini-CIM

[page2067]

We are going with 42 throttle motors. That's it.

[PayneTrain]

6 CIMS (drive train)
2 MiniCIMS
8 775 Pros

That's interesting; it was hard to get more than 6 775pros this year between the limit from the supplier on their website and FIRST Choice.

[PayneTrain]

That's interesting; it was hard to get more than 6 775pros this year between the limit from the supplier on their website and FIRST Choice.

Oh hey, they're back in stock! Never mind.

[Lil' Lavery]

Currently mounted on robot:
4 CIMs
2 775 Pros
2 AM775 (PG77)
1 AM 9015


We are going with 42 throttle motors. That's it.

If you want spares, we have a giant bag we can send you. :rolleyes:

[Mike Marandola]

We're currently at:
5 CIMs
1 550
4 window motors
1 Victor muffin fan

[s_forbes]

4 CIMs
1 MiniCIM
1 775
1 compressor
8 solenoids

[frcguy]

4 CIMs
1 Mini-CIM

[Lireal]

Right now, 4 cims, 1 mini cim, 2 775pros, 2 bags, and 2 window motors. We will probably end up adding one more cim.

[Tmeziere]

4 CIMs
1 775pro (maybe one more)
1 AM9015
1 window motor

[DaveL]

We are going with 42 throttle motors. That's it.

Awesome! You should win a prize for that.

We are using 4 CIMs for driving and 2 on a large arm. 2 mini CIMs for climbing plus a Banebots motor. Another Banebots for in intake roller.
If we shoot, another 2 Banebots motors.

CIM - 6
CIM mini -2
Banebots - 2

[ty.sayman]

6 CIMs
1 Mini-CIM
2 RS775
1 or 2 BAG

[swootton]

6 cims
6 mini cims
2 PG27
1 window motor

[Richard.Varone]

6x CIMs
2x 775
2x Bag
1x Mini
4x Undecided (Bag/Mini/775)?

[logank013]

A common motor I am seeing is a BAG motor. I'm familiar with the other motor but not a BAG motor. Can someone supply a picture of one? Thanks

[Mike Marandola]

A common motor I am seeing is a BAG motor. I'm familiar with the other motor but not a BAG motor. Can someone supply a picture of one? Thanks

http://www.vexrobotics.com/217-3351.html

It looks similar to a CIM but smaller.

[Richard Wallace]

A dozen motors for us.

5 CIMs
1 Mini CIM
4 775 Pros
1 Bosch seat drive
1 TBD

---------
(unless we eliminate something) ;)

[BaileyJoseph166]

We have 4 CIMs working the drive (two on each side), 2 Mini-CIM's (on our shooter) and some other assorted motors for assorted other features.

[Ari423]

5 CIMs for drive, 1 miniCIM for intake (may add another CIM and 775 in the future)

[z_beeblebrox]

4 CIM
5 775Pro
1 Servo

[kingbrandon14]

6 CIMs on drivetrain, plus 4 MiniCIMs and 2 Andymark 9015 motors. That's over $1000 on speed controllers alone!

[orangemoore]

4 Cims
2 Mini-Cims
2 Bag

[MaGiC_PiKaChU]

I'm interested in seeing what the other teams with 0 CIMs are up to... for our part:

-9 775 pro
-3 BAGs
-1 window motor

[Zebra_Fact_Man]

6 CIM (4 drive)
1 MiniCIM
1 775

[Richard Wallace]

6 CIMs on drivetrain, plus 4 MiniCIMs and 2 Andymark 9015 motors. That's over $1000 on speed controllers alone!If you are running them all on new Talon SRXs. Half that if you run them all on new Sparks.

For us the real number is even less, because we are running many of our motors on controllers re-used from earlier years. They'll show on our CAW at the appropriate cost, of course.

[Nathan Streeter]

6 CIMS (drive train)
2 MiniCIMS
8 775 Pros

:O Those batteries won't last long if those 775pros have any legitimate duty cycle!

[Bob Steele]

:O Those batteries won't last long if those 775pros have any legitimate duty cycle!

Not to worry... we have a plan.
We need a bunch of energy at the end of the match...we are lifting very quickly... 4 of the 775's are for that (about 3 -4 seconds)... another for getting the hook up... so about 2 seconds for that one...

We have an active current management system in place too...
It will be interesting.

We are running on all Talon SRX controllers. (Utilizing CAN... we did that successfully last year too... the new CAN works quite well) this really cleans up the wiring... all encoders are run back through CAN. Reliable to date...

[kitare102]

Not to worry... we have a plan.
We need a bunch of energy at the end of the match...we are lifting very quickly... 4 of the 775's are for that (about 3 -4 seconds)... another for getting the hook up... so about 2 seconds for that one...

We have an active current management system in place too...
It will be interesting.

We are running on all Talon SRX controllers. (Utilizing CAN... we did that successfully last year too... the new CAN works quite well) this really cleans up the wiring... all encoders are run back through CAN. Reliable to date...

Whoa there, I'm interested to see what makes 4x775pros necessary for a 3-4 second climb. For our winch, we're using a single CIM, 10.71:1 reduction with a .5" pulley that gives a fairly robust ~4.5sec lift time.

[Bob Steele]

We will be posting a reveal sometime after bag day.
2 --775's would probably do it.... We have plenty of weight... We are using all of our CIM's in the drive base.

Perhaps we can show you in St. Louis? If we both make it.

[Knufire]

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

[asid61]

4 cims, 2 BAGs, 4 775pro, 1 RS-775 or AM 9015.

[Anupam Goli]

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]

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.

[piersklein]

4 CIM
2 Mini CIM
3 775pro

[BetaHelix]

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

[jwfoss]

FRC558 Currently sits at:
6 CIM motors
4 775pros

[smclean1969]

4 full CIMS for the drive train
1 full CIM for climbing
2 mini-CIMS for the shooter
5 bag-CIMS for shooter and defense manipulation

[apalrd]

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.

[mman1506]

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.
Your forgetting about the reduction. You need roughly 4x the reduction for a 775 pro compared to a CIM. More than often this requires multiple reductions (with hard to find gears) or a VP adding weight, complexity and size.

[apalrd]

Your forgetting about the reduction. You need roughly 4x the reduction for a 775 pro compared to a CIM. More than often this requires multiple reductions (with hard to find gears) or a VP adding weight, complexity and size.

You wouldn't need reduction on a CIM or MiniCIM? Relatively few mechanisms work well without any gearing at all.

A VP stage and ring gear (not including ends) is 0.132 lbs, well under the weight difference if you just need an additional 4:1 stage in an existing gearbox. You could also use a CIMile for the 775Pro (but not BAG motor) which weighs 0.4 lbs, still under the weight delta of switching to a CIM.

There are also many suppliers of 32dp gears or small pitch belts which can be mounted directly on a 775Pro shaft. There are plenty of ways to use these great motors.

[dradel]

Our team is using 775's and also vp for the first time this year. Have to say the 775's are a nice little motor. And I wish I had found the vp a couple years ago!