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#16
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Re: Official 2012 Motors Models and Specs Thread
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#17
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Re: Official 2012 Motors Models and Specs Thread
Does anyone know which motors are back-drivable and which motors are not?
Also are there any motor curves up yet? The page on the FIRST website does not have this. |
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#18
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Re: Official 2012 Motors Models and Specs Thread
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350 watts of output power translates to >90% efficiency for a 12V motor, something that is ridiculously high. Or, maybe I'm reading this wrong, and you're simply stating that it can pull about 350 watts of power, and not the output power... I'm confusing myself. In the retest, was the torque due to the arms weight accounted for? Last edited by theprgramerdude : 09-01-2012 at 02:15. |
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#19
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Re: Official 2012 Motors Models and Specs Thread
Regarding the Automotive Recycler's Association motor deal, I found this press release: http://arav3.timberlakepublishing.co...p?Display=1476
My question is, can we simply buy and legally use any motor from a car rather than obtaining it through this route? If not,I think it's dumb that a piece of paper from a junkyard is the difference between a motor being legal and not. |
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#20
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Re: Official 2012 Motors Models and Specs Thread
I can't believe we'd be allowed to use any motor at all. I'm looking forward to more info too. There has to be a reasonable limitation on what can be supplied.
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#21
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Re: Official 2012 Motors Models and Specs Thread
See notes embedded in red: Quote:
Last edited by Ether : 09-01-2012 at 09:10. |
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#22
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Re: Official 2012 Motors Models and Specs Thread
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It now supports the following 2012 motors: CIM FP0673 FP2719 FP9012 FP9015 RS395 RS540 (not legal for 2012 but included) RS550 RS775-12 RS775-18 am-0912 am-0914 DensoL DensoR Denso AE235100-0160 Last edited by Ether : 09-01-2012 at 20:07. |
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#23
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Re: Official 2012 Motors Models and Specs Thread
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#24
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Re: Official 2012 Motors Models and Specs Thread
Ether- do the specs on that PDF look kosher to you? I trust your experience far more than FIRST spec sheets!
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#25
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Re: Official 2012 Motors Models and Specs Thread
Maybe someone can help me. The Fisher Price motor we have in the kit supplied this year is a 00968-9013. Is there any motor data for this motor available?
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#26
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Re: Official 2012 Motors Models and Specs Thread
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1) corrected typo in Line1. Was "am-9012". Now is "am-0912" 2) corrected typo in Line2. Was "am-9014". Now is "am-0914" 3) changed data in Line2. Was/Is: 18.28/69.07 1309.4/4416 75/84 1.2/1.2 11.3/28.6 The new data is misleading. The Stall Torque and Stall Current are reported at 12.8 volts (and this is not indicated in the chart). To create motor curves, use (12/12.8)*4416 = 4140 oz-in stall, and (12/12.8)*28.6 = 26.8 amps Also, the power at 12 volts should be 64.3 watts. See post#10 in this thread. Last edited by Ether : 10-01-2012 at 13:07. |
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#27
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Re: Official 2012 Motors Models and Specs Thread
Actually, there are a lot of folks here on CD with far more FRC-specific experience. But I have checked FRC's 2012 chart against data I had from past years and the only major error I found so far was the am-0914 data in Line2, which has now been corrected*. On an earlier thread, Richard indicated he would perform dyno tests on the kit motors and report the results this week. When that data is available, I will incorporate it into the motor calculator. *edit: but see caveat in post 26 of this thread Last edited by Ether : 10-01-2012 at 13:09. |
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#28
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Re: Official 2012 Motors Models and Specs Thread
Does anyone know why the stall current for the left handed Denso motor is higher than the stall current for the right handed one? If they are just flipped versions of each other shouldn't they be the same?
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#29
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Re: Official 2012 Motors Models and Specs Thread
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I would assume that an update to the 2012 motor specs chart* would follow shortly. * click on the link labeled "data on the motors" on this web page. |
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#30
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Re: Official 2012 Motors Models and Specs Thread
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At least that's how I understand it. Dr. Bob Chairman's award is not about building a robot. Every team builds a robot. |
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