First build ,cat D11

[Cooper]

http://www.servocity.com/html/20_rpm...ear_motor.html
Hey guys, got a drivetrain question. The link above is what I'm thinking for drive. One per side that will have beveled gears attached to get a 90 degree drivetrain. Rpm is 20. Should I be in a higher rpm range? And do you think these motors will be powerful enough? 1:14 scale. This is going to be a working model pushing pretty sandy soil.

[doodlebug]

Originally Posted by Cooper

http://www.servocity.com/html/20_rpm...ear_motor.html
Hey guys, got a drivetrain question. The link above is what I'm thinking for drive. One per side that will have beveled gears attached to get a 90 degree drivetrain. Rpm is 20. Should I be in a higher rpm range? And do you think these motors will be powerful enough? 1:14 scale. This is going to be a working model pushing pretty sandy soil.

These are the one's that Greg used on his Cat D8, 28lbs if I remember correctly? http://www.servocity.com/html/25_rpm...gearmotor.html
I bought some for my Cat D4H project.
Cheer's, Neil.