View Full Version : Did anyone use all 4 CIM motors for the wheels
tennisbeast29
25-01-2009, 22:33
Hi, this is my first post and my first year on a team!
How many of you used a CIM motor for each of your wheels?
The maximum we can use is 4 CIM motors right?
Akash Rastogi
25-01-2009, 22:36
MORT Team 11 did and yes.
Welcome to FIRST and Chief Delphi. :)
btw edit your profile so we can see what team you're on.
2 CIM's and 2 gearboxes haha we had a choice of 4 though :D
nnfuller
25-01-2009, 23:29
2 CIMs on two tranies. We need the CIMs elsewhere.:P
4 CIMs but our drive train is very special. You all will like it when we show it off. Our robot is motor crazy: 4 drive motors, 2 steering motors, 1 motor for collector, 1 motor for hopper, 1 motor for shooter, and 1 motor for turret. That is 10 motors!! Luckily we aren't using pneumatics or we would be so heavy.
Al Skierkiewicz
26-01-2009, 08:14
Welcome to CD. Please include a name (i.e.AKA Steve) so we can address answers to a real person. We are all friends here.
HELLOooo from the North East :D
Yep all 4 are being used for the drive, as we have done in the past years. Good luck to all see ya SOOOooooon :yikes:
MOE and team 88 TJ2 oh yeah???? OH YEAH !!!! TYE DYE for EVER .....
we have two cims in the drive, and our scoring device has one globe, one cim, one rs545, and one kenyang motor (the silver window motor)
647techangel
26-01-2009, 09:56
we have 4 CIM's and 4 gearboxes we are using and a special extra secret thing we are also using on our drivetrain :D
Jon Stratis
26-01-2009, 11:52
4 CIM motors is the maximum limit, per <R51> D:
<R51>
Motors specifically permitted on 2009 FRC ROBOTS include:
[...]
D.
One or two additional 2-1/2” CIM motors (part #FR801-001 and/or M4-R0062-12) in addition to those provided in the Kit Of Parts. This means that up to four, and no more, 2-1/2” CIM motors can be used on the ROBOT.
Last year we used 4 CIM motors on our drive train, the prior year we only used 2... stay tuned for our design this year!
4 CIMs (on the drive train)
2 Globe Motors - Conveyor
2 BB 545 Motors - Shooter
2 Window Motors - 1 turret, 1 feeder
5 Pneumatic pistons - 4 for drive train, 1 is classified until Feb 26th :cool:
Unfortunately, there's no way around this with our ambitious design. It's a good thing we know how to design for weight ahead of time!
Kyle Love
26-01-2009, 13:20
2 cims on the drive
2 cims on the accumulator
1 FP on the shooter (maybe an additional one after testing)
No pneumatics
RoboGeek99
26-01-2009, 13:59
We decided that the extra cim would be pointless bc too much torque and we would just spin out and if we go too fast it would be too easy too lose control...so only 2 gearboxes with 1 cim on each
Rick Wagner
26-01-2009, 16:06
Team 294, Beach Cities Robotics, is using all four CIMs, a CIM and a gearbox on each of four wheels. That's because we have the two rear wheels angled at 45 degrees for more turning torque.
Alan Anderson
26-01-2009, 16:10
We're not even using two CIM motors for the wheels.
thoughtbubble
27-01-2009, 16:47
Quick Question in relation here, is the limit for the motor this year only apply to the cims? We checked the rules but didn't find anything there any thoughts?:]
Rick Wagner
27-01-2009, 20:07
Quick Question in relation here, is the limit for the motor this year only apply to the cims? We checked the rules but didn't find anything there any thoughts?:]
It's in the Robot rules. You may use only the motors in the kit plus two additional CIMs.
Al Skierkiewicz
28-01-2009, 07:46
From Rev E...
<R51>
Motors specifically permitted on 2009 FRC ROBOTS include:
A.
All motors, actuators, and servos provided in the 2009 Kit Of Parts,
B.
An unlimited number of COTS servos with a maximum output torque of 55 oz-in and maximum rotational speed of 100 rpm at 6 Vdc (e.g. HITEC model HS-322HD or HS-325HB servos, as provided in the Kit Of Parts),
C.
An unlimited number of FIRST Tech Challenge (FTC) servos (HITEC HS-475HB servos),
D.
One or two additional 2-1/2” CIM motors (part #FR801-001 and/or M4-R0062-12) in addition to those provided in the Kit Of Parts. This means that up to four, and no more, 2-1/2” CIM motors can be used on the ROBOT.
E.
COTS motors used as one-to-one replacements (i.e. identical vendor and part number) for motors, actuators and servos provided in the 2009 Kit Of Parts that may have failed or become inoperable.
Emphasis mine.
tennisbeast29
28-01-2009, 23:02
I don't want to use all 4 CIM motors because 1. we should use it for a shooter and 2. I think it would provide too much torque, although I havent done the calculations yet.
Do any teams do calculations first, later on, or not at all?
rogerlsmith
28-01-2009, 23:30
Team is 904 using 4 CIM motors in the drive-train. I just posted a picture of our configuration on my blog.
4 CIMS - Drive
2 globes - Steering
1 motor - feeder
4 pistons - 2 for hopper, 1 for elevator, 1 for launcher
Akash Rastogi
29-01-2009, 00:26
Do any teams do calculations first, later on, or not at all?
We made very careful calculations for optimum speed and torque.
We're just stickin with 2 CIMS and 2 gearboxes.
Enigma's puzzle
29-01-2009, 08:49
We are using 4 cims on the drive train, it should be pretty interesting
Rick Wagner
29-01-2009, 12:39
I don't want to use all 4 CIM motors because 1. we should use it for a shooter and 2. I think it would provide too much torque, although I havent done the calculations yet.
Do any teams do calculations first, later on, or not at all?
It's true the CIMs provide plenty of power for the regolith surface, but we are using four because we have four wheel independent control, and we need to use four motors that are alike. We did some tests with a higher gear ratio, on the theory that we could control better with less torque, but found that the standard kit tuff-box gear ratio worked best.
We're using just 2 CIMS for the drivetrain; the lack of friction led us to believe that more would just cause wheel slippage, and there's no need to engage in a pushing match.
1 CIM for collector
1 CIM for storage
1 Keyang for turret
1 Barbie for thrower
Still room for more ...
(Picture coming soon)
MrForbes
29-01-2009, 13:11
1 Barbie for thrower
We're pretending our FP motor is from a Power Wheels F-150 truck, rather than a Barbiemobile. :)
Team 1836:
4 CIMs for the wheels
1 globe for the conveyor belt
1 globe for the shooter
Two fisher price for lifting balls vertically
Keyang or Denso (not sure yet) for a roller at the entrance of the bot
gorrilla
06-02-2009, 21:36
2 cims for the drivetrain
1 keyang for the "thresher"
1 denso for turret
1 cim for harvester
1 cim for shooter
7 motors! more than we've ever used before:ahh:
no pnuematics too:D
Rick TYler
06-02-2009, 21:43
We're not even using two CIM motors for the wheels.
Indiana, huh? Shooting out supersonic streams of corn oil using the compressor?
Flyboy_u92
06-02-2009, 22:07
2594 used 4 CIMs and 4 gearboxes...additionally, we are using a 4 wheel steering system. Instead instead of using the traditional tank/skid style, we mounted our boxes and motors on a pivoting plate and used the globe motors to ty rods that push and pull the plates around their pivot plates. You can see it here http://www.chiefdelphi.com/forums/showthread.php?threadid=73779
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