Let's Make Robots!

Question concerning Wheels

Are these geared motors holes

http://www.hobbyengineering.com/H1415.html

the same size as these

http://www.sparkfun.com/commerce/product_info.php?products_id=423

 

it may seem like an odd question, but I bought two of those right shaft geared motors and I have yet to find an axel that fits inside of it (no i didnt buy the wheels that came with it)

 

In other words would those sparkfun wheels be able to mount on the hobby engineering motors(same size?)

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Unfortunately, no. The GM3 and GM9 series motors use a solarbotics stype hub - the gears you showed from sparkfun have a Tamiya 3mm type hub.

 

You need some of these :-)

 

http://www.hobbyengineering.com/H1215.html