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Unread 02-08-2003, 09:17 PM
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Image Discuss: 121 Teaser 1

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Unread 02-08-2003, 09:18 PM
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Hrmm.. Question...

how do you guys deal with the fact that the Chippy is alot more powerfull than the Bosch motors, and.. im im not mistaken runs slightly faster than the Bosch?

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Unread 02-08-2003, 09:29 PM
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Our driver is trained to hold the joysticks at different angles. j/k what we really do is gear ratios.....
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Unread 02-08-2003, 09:31 PM
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The drill motors are actually the ones that are more powerful, about %50 and they also spin at a speed almost 4 times greater than the Chips. I understand now to match the speeds but how in fact do you adjust for the difference in power? Its like driving one side with 2 Chips and the other with 3.
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Unread 02-08-2003, 09:31 PM
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that was last year. the drill motors are a lot more powerful last year

hmmm, you obviously never saw the drive train on Team 121's bot last year - it had the same setup, and worked very well. I also know that it was quite fast enough to give us (team 571) quite a headace when we tried to push them out of the way.

the left and right side , i believe, are run at different gear ratios in order to achieve the same speed. (true, one side is probably a little more powerful than the other, but i don't think that that affected anything much.
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Unread 02-08-2003, 09:34 PM
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if you do it right like we have everything is same speed and power throughout.
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Unread 02-09-2003, 10:31 AM
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Is that an illegal battery in there though?
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Unread 02-09-2003, 10:43 AM
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I don't see how it would be. The battery can be in any orientation
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Unread 02-09-2003, 10:51 AM
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But it doesn't look like the one in the kit!!!
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Unread 02-09-2003, 01:26 PM
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Quote:
Originally posted by Steven Carmain
Is that an illegal battery in there though?
We have multiple batteries that are not Exide, and use them for testing. To tell you the truth, I don't think there is a rule that you are required to have an Exide Battery.
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Unread 02-09-2003, 01:29 PM
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wow...im really interested in your grearing system, i can't come up with numbers to make those run at the same speed and still have the same tourque....u can bet i'll be visiting your pit alot....good luck
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Unread 02-09-2003, 04:35 PM
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well, the only way that i can think of for the power matching is in code. By limiting how much power goes to a particular motor...

It doesn't make sense to have 2 totally different types of motors to put out the exact same thing mechanically w/ or w/o gear ratios....
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Unread 02-09-2003, 09:50 PM
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ok you wanna know what really powers our wheels. WE put these guys in little metal boxes and let them turn the wheels. THis is an artist rendition of what we do. We also feed the gerbils the same food. so power is equal. To make the bot turn one way, we use brakes on the gerbil wheel to stop power.
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Unread 02-09-2003, 10:01 PM
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Quote:
Originally posted by Kyle Fenton
We have multiple batteries that are not Exide, and use them for testing. To tell you the truth, I don't think there is a rule that you are required to have an Exide Battery.
Page 8- The Robot
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·During any match, only one of the 12 Volt Direct Current Sealed Lead/Acid (SLA) batteries supplied by FIRST may be used to power the robot. You may charge the batteries through the normal operation of the battery charger that FIRST provides.
thats what the rules say
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Unread 02-10-2003, 12:44 PM
Steven Carmain Steven Carmain is offline
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Quote:
Originally posted by Ricksta121
We also feed the gerbils the same food. so power is equal.
Just don't put them in the microwave and cook them. We talked about this in chemistry today, and the blow up.
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