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#31
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Re: pic: 2012 frc971 transmission
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#32
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Re: pic: 2012 frc971 transmission
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It's been hard to find enough detail from some CD research, but here are some I found. 1625 ran 2x1 frame with 9mm wide belt http://www.chiefdelphi.com/forums/sh...ad.php?t=86668 2791 looks like they used 2x1 with a single 9mm belt in 2011, but I think they mentioned ratcheting going full fwd to reverse. Also needs idlers to maintain proper wrap, I would rather avoid that. (http://www.chiefdelphi.com/forums/sh...ad.php?t=94701) 2791's 2012 chassis looks like 4x2 tubing with two 15mm belts. (http://www.chiefdelphi.com/forums/sh....php?t=101454). More weight, and requires >4" wheels, but solves the belt problem at least. Last edited by scottandme : 29-08-2012 at 22:11. Reason: team number dyslexia |
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#33
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Re: pic: 2012 frc971 transmission
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Our drivetrain was literally maintenance free since we first set it up in week 4. Not a thing needed to be maintained. It was wonderful. |
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#34
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Re: pic: 2012 frc971 transmission
I'd guess we're venturing into a thread takeover at this point...We utilized 5mm, 15mm width HTD belts with great success this year. We ran these on 24tooth pulleys.
-Brando |
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#35
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Re: pic: 2012 frc971 transmission
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#36
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Re: pic: 2012 frc971 transmission
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https://sdp-si.com/eStore/..%5Css%5CPDF%5C80502171.pdf A 6A55M024DF0910 Yes custom 3.5" wheels. The thread slips into a slot and is tie wrapped around the axle. Quick and easy to replace threads |
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#37
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Re: pic: 2012 frc971 transmission
Thanks! I saw how your treads worked at worlds... very nice.
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#38
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Re: pic: 2012 frc971 transmission
I'm really curious to know more about people's specific implementations with timing belts, please post about it in this thread;
http://www.chiefdelphi.com/forums/sh...04#post1183704 |
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#39
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Re: pic: 2012 frc971 transmission
what is the reduction on that?
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#40
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Re: pic: 2012 frc971 transmission
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As stated in other places, we have had good experiences with timing belt in 2010, and wanted to get rid of more chain. We are looking at making a couple of minor tweaks to this design to make it easier to swap wheels, move the encoder to the center wheel/last reduction, and maybe make it lighter. This design served us pretty well this last year. |
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