BELT Drive Conversion - XTM Mammoth ST Pro

[MetalMan]

Thanks! Just wait 'til you see the rest...

My original goal was a custom scratch-built buggy but this would be a very difficult feat. Integrating suspension and pulleys while maintaining belt clearance and keeping debris out are the primary goals for such a project, everything else is easy. I met it halfway by using the XTM front end and designing a new rear end based on the XTM parts.

[BL_RV0]

Oh how easy life would be with a plastic injection moulder.

[What's_nitro?]

Don't forget the 5-axis CNC mill to make the molds.

[BL_RV0]

...Or the lathe to turn custom turnbuckles!

[MetalMan]

Scratch-built doesn't mean the entire thing needs to be custom designed and built! I would simply use a proven suspension design off of another car and develop new parts around those suspension pieces, and integrate belt-drive stuff. Much easier that way .

[BL_RV0]

Yeah, I figure I'll use a-arms, shocks, wheel shafts, and steering parts off of a kit.

[MetalMan]

Finally, what many have been waiting for! It's still not done and has a fair bit more work required, but the rest is pretty easy and should go quick once I start. But much of the remainder is dependent upon the proper length front belt, which I just ordered and probably won't be here for another week... Anyways:

Lower belt guide:



Inside front diff case:


Upper belt guide:


Belt clearance with lower arm mount (note there is actually less clearance when the belt isn't lifted up):


Complete front end:


Belt protrusion below front bulkhead:


Mounted front end:


Rear end gear reduction:


Bottom of rear end (minus suspension plate):

[MetalMan]

Lower suspension mount:


Back of rear end showing sway bar mounting:


Front of rear end:


Bottom of rear end:


Rear end mounted:


Check out all those screws holding the rear end on! Normally only 4 screws have that job...


And of course the motor/reduction unit:


Positioning:



The pics of the center unit are older, it will actually have the polycarbonate mounting piece directly behind the motor (and the gear will be behind it) so that the entire unit will fit on the chassis.

[ANGRY-ALIEN]

wow... That's quite a build man... I can't wait to see the completed thing. Please keep the pictures coming.

Alien

[What's_nitro?]

Amazing work. Can't wait to see it finished!

sweet!

[BP-Revo]

I want to see that in person. Can I tempt you with a ride in a certain car? LOL

[MetalMan]

Originally Posted by BP-Revo

I want to see that in person. Can I tempt you with a ride in a certain car? LOL

When the time comes (wow that was awkward)

[Joey]

My God this is amazing work. This has got to go in the record book, folks... just.. wow! It all is put together to well, quite a feat in itself to make it look like it was made that way from the factory. Ingenious ideas here.

[Semi Pro]

wow, thats turning out to be very complex