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-   -   Drive Train Design - Weight & Belts (http://www.chiefdelphi.com/forums/showthread.php?t=131224)

Thad House 23-11-2014 15:56
Re: Drive Train Design - Weight & Belts
 
Quote:
Originally Posted by dellagd (Post 1409682)
Yes, that was including 6 CIM motors. It was designed with rectangular aluminum tubing (we can't do sheet metal yet) and Colson wheels. After entering in all the weights in Inventor I'm getting 41 lbs.
That sounds exactly right for a 6 CIM box chassis and Colsons.

asid61 23-11-2014 16:06
Re: Drive Train Design - Weight & Belts
 
Quote:
Originally Posted by Thad House (Post 1409686)
That sounds exactly right for a 6 CIM box chassis and Colsons.
Sounds a little heavy to me.
6 cims * 2.82lbs/cim = 17lbs
2 shifting gearboxes *3lbs/gearbox = 6lbs
6 colsons * 0.5lbs = 3lbs
Then your frame members and such should only be around 8-10lbs.
Soe between 34 and 36lbs, maybe a bit more. What is your bellypan made of?

Thad House 23-11-2014 16:09
Re: Drive Train Design - Weight & Belts
 
Quote:
Originally Posted by asid61 (Post 1409687)
Sounds a little heavy to me.
6 cims * 2.82lbs/cim = 17lbs
2 shifting gearboxes *3lbs/gearbox = 6lbs
6 colsons * 0.5lbs = 3lbs
Then your frame members and such should only be around 8-10lbs.
Soe between 34 and 36lbs, maybe a bit more. What is your bellypan made of?
He said 8WD, and remember you have to include axles, hubs and chains, and bearing blocks as well. Which usually are around 5 lbs when everything is added. 41 lbs for that setup is just about right.

asid61 23-11-2014 16:33
Re: Drive Train Design - Weight & Belts
 
Quote:
Originally Posted by Thad House (Post 1409689)
He said 8WD, and remember you have to include axles, hubs and chains, and bearing blocks as well. Which usually are around 5 lbs when everything is added. 41 lbs for that setup is just about right.
AH, you're right. I'm too used to swerve lol.

dellagd 23-11-2014 18:45
Re: Drive Train Design - Weight & Belts
 
Thanks Thad House. Good to know I'm in range.

Has anyone used 18T pulleys on their belt driven drive system? I've heard pulleys that are too small are a big issue with 9mm belt but I'm not sure if these will be reliable with 15mm.


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