Society of Robots - Robot Forum

General Misc => Misc => Topic started by: Admin on July 03, 2009, 07:45:39 PM

Title: need dimensions for GM13a motor
Post by: Admin on July 03, 2009, 07:45:39 PM

I'm trying to CAD this motor up, but the only dimensions I can find are:

Quote

Length (mm):      33.10 mm
Width (mm):     12.00 mm
Height (mm):     10.00 mm

Somewhat useless, it doesn't mention the details, like shaft length/diameter, etc . . . anyone got more info? ;D

http://www.solarbotics.com/products/gm13a/specs/ (http://www.solarbotics.com/products/gm13a/specs/)

(http://www.solarbotics.com/assets/images/gm13a/gm13adscn2319_pl.jpg)

Title: Re: need dimensions for GM13a motor
Post by: sonictj on July 03, 2009, 08:04:52 PM

These may be the same as the ant weight sized motors sold at robot marketplace. let me check.

Title: Re: need dimensions for GM13a motor
Post by: sonictj on July 03, 2009, 08:08:35 PM

This ought to be it or very close http://www.robotmarketplace.com/products/IL-SAN50.html (http://www.robotmarketplace.com/products/IL-SAN50.html)

Title: Re: need dimensions for GM13a motor
Post by: Admin on July 03, 2009, 08:30:40 PM

Hmmmm I used to own one of these years ago . . . shaft seems 2x longer than I remember . . . can anyone verify these values?

Title: Re: need dimensions for GM13a motor
Post by: sonictj on July 03, 2009, 09:20:46 PM

this is the actual motor but it has no dimensions listed http://www.robotmarketplace.com/products/0-GM13A.html. (http://www.robotmarketplace.com/products/0-GM13A.html.)

Here is an alternative with dimensions and similar performance specs http://www.pololu.com/catalog/product/997 (http://www.pololu.com/catalog/product/997)

Title: Re: need dimensions for GM13a motor
Post by: Admin on July 04, 2009, 10:22:24 AM

nice find!

I think I'll get this mounting bracket for it, too:
http://www.pololu.com/catalog/product/989 (http://www.pololu.com/catalog/product/989)

Title: Re: need dimensions for GM13a motor
Post by: galannthegreat on July 04, 2009, 12:03:04 PM

I find phoning the company or emailing them with questions helps, they are generally very quick to respond.

Title: Re: need dimensions for GM13a motor
Post by: Admin on October 04, 2009, 12:00:19 PM

coming back to this motor . . . I see two places selling it, Solarbotics:
http://www.solarbotics.com/products/gm13a/ (http://www.solarbotics.com/products/gm13a/)
and Pololu:
http://www.pololu.com/catalog/product/1097 (http://www.pololu.com/catalog/product/1097)

They each list very different torque and rpm specs. Anyone verified the torque/rpm?

(robotmarketplace gets the specs from solarbotics)