my first semi build (dump)

[Lil Giants]

So you're gonna add a gear reduction unit between the motor & trans?

I think it's 50rpm gh motors that ppl are using for their screwdrives. The kit motor is a Johnson 15000rpm. I forget how many teeth are that 1st lower gear, is it 36? With an 8 tooth pinion that would be 4.5 to 1 or 3333rpm on that top shaft. That's pretty fast!

Perhaps an additional planetary or spur gear reduction on the back of the trans & in combo with a reduction on the front of trans with a slower (higher winding) motor will give the necessary slow speed & torque you'll require for the screw drive and slow your trk down to a more desireable scale speed?

Or is that "more on that later as all the work is not done on that yet." part yet to come?

[SmallHaul]

Nice work on the modification and clever idea using the trans to power the dump. It will be cool to see it run.

[chaseracer]

Originally Posted by Lil Giants

So you're gonna add a gear reduction unit between the motor & trans?

I think it's 50rpm gh motors that ppl are using for their screwdrives. The kit motor is a Johnson 15000rpm. I forget how many teeth are that 1st lower gear, is it 36? With an 8 tooth pinion that would be 4.5 to 1 or 3333rpm on that top shaft. That's pretty fast!

Perhaps an additional planetary or spur gear reduction on the back of the trans & in combo with a reduction on the front of trans with a slower (higher winding) motor will give the necessary slow speed & torque you'll require for the screw drive and slow your trk down to a more desireable scale speed?

Or is that "more on that later as all the work is not done on that yet." part yet to come?

thanks guys,

Wow Joe, you are making my head spin, you thinking way to much for me. I am not that smart. lol I get ideas try them if they don't work I try something different. I just hope someday I have a something that works. your builds and videos are pretty much what got me hooked on this rc construction stuff

and yes the "more on that later" did mean I don't have it all figured out yet.