I have a 1:16 die cast bulldozer that I have converted to radio control. I am currently using two of the low power 250:1 micro metal motors. They seem to stall a bit too early. This happens as the dozer is pushing forward against a pile of dirt or whatever. I want the tracks on the machine to slip/slide a bit even when the dozer is trying to push forward.
So, when the motors stall, exactly how or what is happening? Is the armature just stopping, even while the current is being put thru it? Or, is there some slipping clutch function of the gear motor assembly?
My confusion come as I watch the motors it seems as they stall, they "give up" completely, until I momentarily go to reverse, then when I go back to forward they try again until they stall.
I have ordered three additional sets of motors in the low, medium and high power groups. All of them are the 298:1 ratio. I suspect one of the three will be about right.
The motors are driving a pinion, which turns a similar size pinion that is turning the drive wheel on the dozer, giving about a 1:1 ratio at the wheel/tracks. I am also happy with the rpm of my current motors, so I'll see how the new motors work out. Still interested in learning more on how they are working.
A good answer might include some description of how or why the 1:1000 ratio motors might damage the gearbox?
Thanks! Sorry for the long post!