Yes, I got a strange reaction when I told my GF that I was having trouble working with this hardened shaft!
That stuff is like bullet proof. There is another way to do it, if you have a cutting torch. You can heat it up Cherry Red, then let it cool off VERY slowly. This removes the temper from the steel. Then it's alot more workable.
To restore the temper and regain the hardness in the shaft, (this is an age old question that just recently got answered!
), You heat it back up Cherry Red again. Then you Quench it quickly. I was told to be VERY Careful, because there is a pretty violent reaction, especially if you use water. I was told quenching in Oil works better. If you want to hit the middle of the hardness scale with your shaft, (
), you heat it up until it just turns a little brown, then quench it.
Well since I was getting this information from my local machine shop, I just opted to order some 6mm shaft material that was of a slighty lesser hardness. Then I made my own custom shafts from that. It worked great.
You might take a look at the E maxx output shaft to the transmission. It is 6mm in diameter and already has the "hoe" in it for the cups. LOL Just see if the length is compatible with what you need.
Dremel makes a small diamond tipped cutter that will cut the stuff. But it's still a challenge at best.
Hmmm, I wonder if the CVD cups and shaft for an E maxx would work?
That's the sound of an outrunner alright. I think they are very cool. Very Quiet also.
Nice pictures. I like that ESC alot. Can't wait to hear about it's performance in a land vehicle.