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Bruceb
12-01-2010, 14:43
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
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
Yes you can.
www.AndyMark.com is your friend.

http://www.andymark.biz/am-0002.html
Bruceb
12-01-2010, 15:29
Is it worth doing? How much additional power are we buying for $100?
Thanks
Bruce
CraigHickman
12-01-2010, 15:35
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
Is it worth doing? How much additional power are we buying for $100?
Thanks
Bruce

By quickly using the JVN Design Calculator (http://www.chiefdelphi.com/media/papers/2059), 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
Yes it is probably worth it... it was a noticeable increase for us.
We added a FP to 2 cims on our 2007 (http://www.chiefdelphi.com/media/photos/28837) 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
Is it worth doing? How much additional power are we buying for $100?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 (http://www.chiefdelphi.com/forums/showthread.php?p=877987#post877987).
CraigHickman
12-01-2010, 17:21
I agree with Craig. For a more detailed explanation look here (http://www.chiefdelphi.com/forums/showthread.php?p=877987#post877987).

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
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 (http://www.andymark.biz/am-0255.html), and an $8 pinion from AndyMark (http://www.andymark.biz/am-0034.html).
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
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
By quickly using the JVN Design Calculator (http://www.chiefdelphi.com/media/papers/2059), 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.