"Direct Drive to Diff" MT2 18SS

[sikeston34m]

Originally Posted by MetalMan

Blue medium strength is what I use on everything. It's already on the set screws holding the shaft, and on the set screws holding the cups to the shaft (and on the end of those set screws).

The E-Maxx output shaft, if 67.6mm long, is actually just about the perfect length for the motor. However, it's got that big chunk of metal in the middle, which would take a while to turn down or cut off.

That big chunk comes off pretty quick if you put it in a cordless drill, then hold it against a Bench Grinder. I take my time and don't get it too hot. Just stopping occasionally to cool it with cold water. Get it down close, then use a file on it to rough cut some more, and final polishing is done with sandpaper.

You might be surprised how fast this little procedure is. I removed the center "chunks" from two of the Revo Output shafts, fully prepped in about 30 to 45 minutes or so.

[ICUBoy]

Fascinating thread thanks all.
I love that outrunner video- BIZARRE to see the can spinning!
Regards
David / ICUBoy

[MetalMan]

Originally Posted by sikeston34m

That big chunk comes off pretty quick if you put it in a cordless drill, then hold it against a Bench Grinder. I take my time and don't get it too hot. Just stopping occasionally to cool it with cold water. Get it down close, then use a file on it to rough cut some more, and final polishing is done with sandpaper.

You might be surprised how fast this little procedure is. I removed the center "chunks" from two of the Revo Output shafts, fully prepped in about 30 to 45 minutes or so.

Good to know, I might do that in the future.

I have some good news - the motor mount is almost finished, and is made out of 1/4" polycarbonate, that was bent to 90* with a heat gun. The brake assembly is finished, and should work adequately. Now I just need to figure out battery mounting, chassis bracing, steering servo mounting, and ESC mounting (this ESC is HUGE). I just wish the MT2 chassis weren't so small.

[sikeston34m]

Let me know how the Polycarbonate Motor mount works out. I feel like I could have saved some weight with the use of other lightweight materials such as Carbon Fiber.

One desireable trait about Aluminum is it's heat sinking ability.