Chiaphua Motors: Good or Bad to 2002 Kit Of Parts?
 

Just curious, what did everyone think of the Chiaphua (AKA Atwood Mobile, Chalupa [sorry, team joke]) motor this year, Good or Bad?

I thought they were great... We had to drop them from our drive due to weight (they are hefty), but I still love to just hook them up to a battery and enjoy trying to hold onto them when they torque. They have some serious potential, much better then the van door motors

The one quibble is probably that funky gear on the shaft and the cluster... If only every motor were as easy as the drill motor...

-Andy A.

i loved those motors. gave us huge speed and power. heck, teamed up with the drill motors, we were almost unstoppable (yes, almost :(). if they don't have them next year, i would be saddened, because those motors rock.

Yes you are right...but what if you went one step foward and added Fisher Price Motors to the assembly?

Chalupas are god!!!!!

Thats quite impressive. Is the window motor for changing gears?
and how did you overcome the problem of popping breakers..espcially with treads.??


Chris
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Shift on the Fly Gearbox...
 

Chris,

Yes,

The window lift motor was for shifting. We used it for our regionals. Then we switched to a non-pnuematic pump shifting system. All we did was fill up the accumulators before each match and they would enable us to shift more than we needed to for a certain amount of shifts...

Actually in the very beggining we did pop breakers because we were way too fast...then we geared down, and still had some problems under tuff pulling matches...So we figured out how to cool down the circut breaker with that "cold spray" stuff and that seemed to help a lot...

I dont have any photos of it yet, but i have this CAD pic...

http://www.theforumisdown.com/upload...a_asm_pneu.JPG

{edit} Copy and paste that URL

That shifter was designed before nats, but it was built and mounted in a little over 2 hours on the Thursday of Nats

Interesting design. Care to explain any of it?

White paper is in the works
 

Jeff,

I'm working on a white paper which describes this design in detail (prints and all)... it should be done by Aug. 1st.

Actually, this design is alot like your team's gear shifting desgin. The way our gears engage and disengage is a bit different, and they were able to do this on the fly, but the overall concept is the same. We eventually got smart and actuated the shifter mechanism via pneumatics as DJ and Clark mentioned above.

Andy B.

Cool beans. I'll be eagerly awaiting your white paper. I'm interested to see how this drive of your works.

Re: White paper is in the works
 

I am anxiously awaiting your white paper, and also seeing the machine in person. I really want to see how you did the shift on the fly. We've trashed entirely too many Bosch trannys. :(Fortunately none in competition.:D At least we've gotten pretty good at rebuilding them.:rolleyes:

ChrisH

Would the "bad" voter care to explain why they did so? I'm not harassing you about this or anything, but I'd be interested to know why you don't like the Chiaphuas.

wasnt me
 

It wasnt me that voted for that, but i think i can see where the person is coming from....

If u dont have the resources to build something really "mechanical" to use these motors (gearboxes, etc.) then it stretches the "unfairness" (is that a good word?) of the competition in some sense...

:)
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Back to the gearbox.

Here are some more pics (sorry you've gotta copy and paste the url the once "really cool" place i used to upload this pictures to has banned places like this from viewing the pictures)


http://www.theforumisdown.com/upload...602/tranny.JPG

http://www.theforumisdown.com/upload...2/DSCF0559.JPG

I may go over to our shop sometime soon so i can finally get some pictures of the pneumatic shifting.

They don't have as much power as the Drill Motors as FIRST has given us in the last couple of years.