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  #31   Spotlight this post!  
Unread 23-01-2008, 08:46
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Re: 2008 Motor Specs

Quote:
Originally Posted by reflion View Post
Anybody know the torque of the Taigene motor? It's not listed on the specs FIRST provided, and we need to know if its a motor that we can use for our task.
I haven't found actual specs on the the Taigene motor, but we have determined that it is REALLY WIMPY compared to a similar-looking one we have, probably from 2005. Our very scientific tests involved connecting the two motors to a battery in both directions and observing how much the motors "jump" from torque reaction. The old one jumps a lot more. Our second test was of the "don't try this at home" variety. A person held the motor in one hand and an adjustable wrench on the output shaft in the other hand while a second person connected the motor wires to a battery. The old motor had a lot more torque. The motors have different worm and ring gear designs, and they also have different "winds."
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  #32   Spotlight this post!  
Unread 24-01-2008, 21:10
Ken Stafford Ken Stafford is offline
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2008 Motor Specs (Taigene Van Door)

Quote:
Originally Posted by Arefin Bari View Post
Download JVN's 2008 Design Calculator. All motor specs are on there under the specs tab.

John points out that the specs have either been experimentally determined, or taken from the manufacturer.

I have yet to find specs of all these motors on the FIRST site.
Beware, at least some of the data on John's calculator are NOT for 2008! We just ran bench tests on the new Taigene Van Door motor (see attached), we will have the complete data for this motor and others available on the first.wpi.edu site very soon. The condensed data for the new Van Door is as follows (all corrected to 12.0V input): Free running--48 rpm/1.2 Amps, Stall--360 in-lbs/24.2 Amps. Max power: 53W. So it is about 20% less powerful than the last Van Door we were supplied.
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File Type: pdf 2008 Van Door Motor.pdf (13.8 KB, 192 views)
  #33   Spotlight this post!  
Unread 28-01-2008, 01:02
minirose224 minirose224 is offline
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Re: 2008 Motor Specs

I see these specs posted by teams about the Taigene Van Door Motor the what FIRST has posted on its website. My question is will FIRST ever post official performance specs about the Taigene Motor?
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Unread 28-01-2008, 01:16
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Re: 2008 Motor Specs

Quote:
Originally Posted by Kit Gerhart View Post
I haven't found actual specs on the the Taigene motor, but we have determined that it is REALLY WIMPY compared to a similar-looking one we have, probably from 2005. Our very scientific tests involved connecting the two motors to a battery in both directions and observing how much the motors "jump" from torque reaction. The old one jumps a lot more. Our second test was of the "don't try this at home" variety. A person held the motor in one hand and an adjustable wrench on the output shaft in the other hand while a second person connected the motor wires to a battery. The old motor had a lot more torque. The motors have different worm and ring gear designs, and they also have different "winds."
I wouldn't consider the "Jump" as an accurate method of torque testing
  #35   Spotlight this post!  
Unread 28-01-2008, 08:03
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Re: 2008 Motor Specs

Quote:
Originally Posted by M4 Sherman View Post
I wouldn't consider the "Jump" as an accurate method of torque testing
The "jump" should be a good indicator if the mass of the armatures of both motors is the same, but I don't know for sure that it is. The "wrench on the shaft" test is a sure indicator of a difference, though.
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  #36   Spotlight this post!  
Unread 29-01-2008, 00:54
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Re: 2008 Motor Specs

Where can I find information regarding the gear pitch and such dimensions etc, for this years FP motor? I think I missed something this year...

Thanks,
-Bharat
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  #37   Spotlight this post!  
Unread 29-01-2008, 09:28
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Re: 2008 Motor Specs

Quote:
Originally Posted by Bharat Nain View Post
Where can I find information regarding the gear pitch and such dimensions etc, for this years FP motor? I think I missed something this year...

Thanks,
-Bharat
The pinion on the motor should be 32 pitch. I think this year's is 19 tooth, but you can verify that by counting the teeth.
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  #38   Spotlight this post!  
Unread 04-02-2008, 20:57
Maximus-Prime Maximus-Prime is offline
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Re: 2008 Motor Specs

Ok, I'm really confused and really tired. My team needs to use the 16627960 Motor and the 16631023 Motor TOGETHER. Meaning we need to know if they run with the same specs I guess. Would it work having them oh lets say on opposite sides of the same shaft running to flip it up? For us if they don't run exactly the same it will destroy itself (trust me we know.) Anyway, I've been working to try to figure this out for several hours, any help would be really appriciated. I looked at Keyangs website AND FIRSTs official specs, Keyang isn't any help and FIRSTs specs are too small (and side ways on my screen) to read.
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Unread 04-02-2008, 22:24
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Re: 2008 Motor Specs

Quote:
Originally Posted by Maximus-Prime View Post
My team needs to use the 16627960 Motor and the 16631023 Motor TOGETHER. Meaning we need to know if they run with the same specs I guess.
The specs on the FIRST website are the same; points on the corners are 22-41 RPM @ 6 Nm, 45-64 RPM @ 1.8 Nm.
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  #40   Spotlight this post!  
Unread 06-02-2008, 08:57
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Re: 2008 Motor Specs

can anyone please give me the specs for the keyang motor im having difficulty finding them and cant read them on the usfirst site

thanks
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Unread 12-02-2008, 04:36
Frank Neuperger Frank Neuperger is offline
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Re: 2008 Motor Specs

JVN spec for denso motor does not seem right.

JVN listed Stall torque for Nippon Denso motor of 9.2 N-m works out to 6.78 ft lbs.

In testing today, we measured ~12 lbs force on ~ 2 foot weightless arm today using a decent load cell. This is closer to 24 ft lbs so this is different from JVN spec by a factor of almost 4.

Does anyone have any test results on the Denso motor.
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