sir_francis

Ok, this is the second time I post about it but I can't find an appropriate section.

I'm searching for a 130 type motor (the same of mini 4wd) but it should have a low rpm and high torque.
I use a tamiya gearbox but standard motors with blue cap are too fast and I want to change both with other one.

If you want to see my project look at this video:
http://www.youtube.com/watch?v=clDDPz7M9M4

Planedev

Have you tried teh white caps that comes with the older mini 4WDs? Else you can try the motors that come in Mini Zs, if I remember correctly, they are slightly slower in RPMs.

clodzie

Hi.

I would try these http://www.hobbylinc.com/htm/tam/tam15134.htm
I dont know if those have neodynium magnets already installed - if not, those will make a real difference.

Thanks for this great forum, my next posting will be about tanks.

sir_francis

I'll try with white cap motor.

Blue cap motors run at 6000-9000 rpm. This one is faster.

Planedev

Are you using the dual gear box from tamiya with this? If so, i thought you can adjust the gear ratio on those things? I have one and it is a matter of adding or removing some gears to get teh desired power and speed with those.

sir_francis

I used this with most reduced gear's combination

Planedev

oh you using this gear box. Tamiya makes another dual gearbox with more gear ratios that thisone, but not sure if it will fit in your dozer

sir_francis

This fit perfectly.
Otherwise I found some slow rpm motor at home.
Unfortunately I did not find 2 motors with same speed.

The_Stuff

hmm. are you sure you used the slowest gear reduction? i have one of those in my 1/2 track project and your dozer looks like its on the fast one...

sir_francis

Yes I am.
Do you use blue cap motors?

Francis