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-   -   toughbox second motor other than CIM (http://www.chiefdelphi.com/forums/showthread.php?t=80025)

Bruceb 12-01-2010 14:43

toughbox second motor other than CIM
 
Can we get a gearbox or some adapter to mount a motor other than a CIM into the toughbox gearbox and use it in conjunction with one CIM. Our design this year may be running out of CIMs. Ya, I know 5 should be enough but we need speed in some of our mechanisms.
Bruce

EricH 12-01-2010 14:47

Re: toughbox second motor other than CIM
 
AM Planetary, http://andymark.biz/am-0002.html, will take an FP and make it mount like a CIM.

Peter Matteson 12-01-2010 14:47

Re: toughbox second motor other than CIM
 
Yes you can.
www.AndyMark.com is your friend.

http://www.andymark.biz/am-0002.html

Bruceb 12-01-2010 15:29

Re: toughbox second motor other than CIM
 
Is it worth doing? How much additional power are we buying for $100?
Thanks
Bruce

CraigHickman 12-01-2010 15:35

Re: toughbox second motor other than CIM
 
Quote:

Originally Posted by Bruceb (Post 897564)
Is it worth doing? How much additional power are we buying for $100?
Thanks
Bruce

Very little, and the FP motors have a tendency to overheat when used in drive if you spend a lot of time stalled. It would be a better investment to buy two more CIM's to use on the toughboxes.

Collin Fultz 12-01-2010 15:36

Re: toughbox second motor other than CIM
 
Quote:

Originally Posted by Bruceb (Post 897564)
Is it worth doing? How much additional power are we buying for $100?
Thanks
Bruce

By quickly using the JVN Design Calculator, I can show that using 2 motors per gearbox, with 8" kit "sticky" wheels, will give me 120 lbs pushing force, at around 59 amps/motor. With 1 motor per gearbox, I get 111 lbs pushing force, at around 115 amps/motor.

Borisdamole 12-01-2010 15:39

Re: toughbox second motor other than CIM
 
Yes it is probably worth it... it was a noticeable increase for us.
We added a FP to 2 cims on our 2007 robot

If you feel you need the cims other places, then the andy mark planetary would be a good option

Richard Wallace 12-01-2010 16:28

Re: toughbox second motor other than CIM
 
Quote:

Originally Posted by Bruceb (Post 897564)
Is it worth doing? How much additional power are we buying for $100?

Quote:

Originally Posted by CraigHickman (Post 897568)
Very little, and the FP motors have a tendency to overheat when used in drive if you spend a lot of time stalled. It would be a better investment to buy two more CIM's to use on the toughboxes.

I agree with Craig. For a more detailed explanation look here.

CraigHickman 12-01-2010 17:21

Re: toughbox second motor other than CIM
 
Quote:

Originally Posted by Richard (Post 897598)
I agree with Craig. For a more detailed explanation look here.

I was hunting for that thread. Thanks for bringing it back, it's one of the better ones for motor choices.

billbo911 12-01-2010 17:22

Re: toughbox second motor other than CIM
 
Quote:

Originally Posted by CraigHickman (Post 897568)
Very little, and the FP motors have a tendency to overheat when used in drive if you spend a lot of time stalled. It would be a better investment to buy two more CIM's to use on the toughboxes.

Craig's advice is sound.

Now, if you still want to add a second motor to a Toughbox, it is way better to add a second CIM for $28 from AndyMark, and an $8 pinion from AndyMark.
Grand total $36 and you get twice the power out per transmission.

The only drawback might be the weight.

meastman 12-01-2010 19:18

Re: toughbox second motor other than CIM
 
I have a quick question regarding the toughbox. For our toughbox, the given spacer/key for the main shaft don't work together. is this the case for anyone else?

Dad1279 12-01-2010 19:44

Re: toughbox second motor other than CIM
 
Quote:

Originally Posted by Collin Fultz (Post 897569)
By quickly using the JVN Design Calculator, I can show that using 2 motors per gearbox, with 8" kit "sticky" wheels, will give me 120 lbs pushing force, at around 59 amps/motor. With 1 motor per gearbox, I get 111 lbs pushing force, at around 115 amps/motor.

115 Amps to a CIM is way too much, almost at stall.


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