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This is one of the four drive assemblies on the FRC1726 "PromoBot". It uses an AndyMark single speed transmission, small CIM motor, and AndyMark mecanum wheel. The wheel has a 24 tooth IFI sprocket, and the transmission has an AM 12 tooth sprocket, which is the one used in the AM Shifter output, and has the correct 1/2" shaft size and 1/8" keyway.
Discussion
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09-18-2007 03:53 PM
luciaes
Re: pic: AM Mecanum Chain Drive
nice, i wish i could convince my team to do a mecanum, unfortunately they wont budge 
09-18-2007 09:49 PM
techtiger1
Re: pic: AM Mecanum Chain Drive
Well I will say if your going to do mechanum's this looks like an easy and efficient way to do it. Did you guys modify the am single speeds at all for weight or anything? Ohh I'd like to know how the rollers held up.
-Drew
09-19-2007 01:22 AM
Lil' Lavery
Re: pic: AM Mecanum Chain Drive
What made you opt to link an AM single speed via chain rather than direct driving (or reducing) a Banebots transmission, which seems like it could be a cheaper, lighter, and more compact (in 2 of the 3 dimensions) solution. Don't really see the need to torque up a mecanum system, especially on a promobot.
Although I do very much like how well the system fits together (with the AM tucked in the frame and the CIM poking over the top), and I also like the use of channel (i-beam?) for the frame railing.
09-19-2007 02:44 AM
s_forbes
Re: pic: AM Mecanum Chain Drive
I got to see (and drive!) the base the night the team got it mostly put together, so I may be able to answer some of the questions...
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Originally Posted by techtiger1
Well I will say if your going to do mechanum's this looks like an easy and efficient way to do it. Did you guys modify the am single speeds at all for weight or anything? Ohh I'd like to know how the rollers held up.
-Drew |
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Originally Posted by AdamHeard
Is that an I beam as the frame?
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Originally Posted by Lil' Lavery
What made you opt to link an AM single speed via chain rather than direct driving (or reducing) a Banebots transmission, which seems like it could be a cheaper, lighter, and more compact (in 2 of the 3 dimensions) solution. Don't really see the need to torque up a mecanum system, especially on a promobot.
Although I do very much like how well the system fits together (with the AM tucked in the frame and the CIM poking over the top), and I also like the use of channel (i-beam?) for the frame railing. |
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