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FRC1675 2014 Teaser #3

By: BigJ
New: 06-02-2014 21:04
Updated: 06-02-2014 21:04
Views: 1850 times


FRC1675 2014 Teaser #3

Is this a valid use of a WCP 3-motor gearbox? Maybe we should ask Q&A...

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06-02-2014 22:17

BBray_T1296


Unread Re: pic: FRC1675 2014 Teaser #3

The GDC / Q&A does not care how you use a COTS part (within reason of course). You are fully allowed to use the 3rd CIM slot in any way you want, as per the designed use or otherwise. There is not even remotely a legality issue regarding a situation like this.

If by valid you mean:
Legal, Yes
Useful, Yes

Seems like a cool unique solution to a mounting question!



06-02-2014 22:37

geomapguy


Unread Re: pic: FRC1675 2014 Teaser #3

Quote:
Originally Posted by BBray_T1296 View Post
The GDC / Q&A does not care how you use a COTS part (within reason of course). You are fully allowed to use the 3rd CIM slot in any way you want, as per the designed use or otherwise. There is not even remotely a legality issue regarding a situation like this.

If by valid you mean:
Legal, Yes
Useful, Yes

Seems like a cool unique solution to a mounting question!
I'm pretty sure it was a joke



06-02-2014 22:50

BigJ


Unread Re: pic: FRC1675 2014 Teaser #3

Yeah, it was a joke, sorry. Shoulda put a winky face

By the way, I'm a software guy, so if there actually is something obviously mechanically wrong, I wouldn't know



06-02-2014 22:53

Gregor


Unread Re: pic: FRC1675 2014 Teaser #3

Why did you choose the AM motor over a more powerful motor, like a 500, 775, miniCIM, or CIM motor. Worried about current draw?



06-02-2014 23:41

Kevin Kolodziej


Unread Re: pic: FRC1675 2014 Teaser #3

Quote:
Originally Posted by Gregor View Post
Why did you choose the AM motor over a more powerful motor, like a 500, 775, miniCIM, or CIM motor. Worried about current draw?
The AM motor in question is the AM-2161, AKA the 775-5. Plenty of power for what we're using it for, but the driving design factor was actually speed. The 775-5 has a free speed of 5700rpm...and that's attached to a 100:1 VersaPlanetary with an 18t gear on it, driving a 24t gear which drives an 18t pulley which drives a 60t pulley...total reduction of 444:1. Didn't want to go with something with a 16000 rpm free speed.

And yes, we are aware of the torque ratings for the versaplanetary and are well within limits.



06-02-2014 23:47

Gregor


Unread Re: pic: FRC1675 2014 Teaser #3

Quote:
Originally Posted by Kevin Kolodziej View Post
The AM motor in question is the AM-2161, AKA the 775-5. Plenty of power for what we're using it for, but the driving design factor was actually speed. The 775-5 has a free speed of 5700rpm...and that's attached to a 100:1 VersaPlanetary with an 18t gear on it, driving a 24t gear which drives an 18t pulley which drives a 60t pulley...total reduction of 444:1. Didn't want to go with something with a 16000 rpm free speed.

And yes, we are aware of the torque ratings for the versaplanetary and are well within limits.
I just realized that the motor wasn't part of the drivetrain. Woh. This is awesome.



07-02-2014 08:54

notmattlythgoe


Unread Re: pic: FRC1675 2014 Teaser #3

Very cool space saving design by using the extra slot on the 3 CIM gear box. I love it.



07-02-2014 23:55

Bryce Paputa


Unread Re: pic: FRC1675 2014 Teaser #3

Where are the mecanums?



08-02-2014 02:00

BigJ


Unread Re: pic: FRC1675 2014 Teaser #3

Quote:
Originally Posted by Bryce Paputa View Post
Where are the mecanums?
It was getting toward the end of the meeting and I was too lazy to... um... "put one back on"



08-02-2014 09:51

DonRotolo


Unread Re: pic: FRC1675 2014 Teaser #3

+1



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