Yeah, Ideally both of those are good ideas.
We did alter the inside to have a much longer support for the rotor on the motor shaft.
But do need to add another sort of keyway option as well.
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pics are all above in this thread
Yeah, I acknowledge that your motors are better designed, just not better enough 
There’s only so much space there for making the aluminum more beefy.
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That’s good, but I’m pretty sure the back can’t be steel because magnetic
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It’s not right against the magnets or stators/coils, so there should be little to no losses.
Need that 10K Mile Motor! 
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If I had access to a machine shop right now, I’d bang out a prototype right now
My experience maching the aluminum/case-hardened-steel interface where the can/rotor meets the axle/shaft is that it’s crazy how soft the aluminum is compared to the case-hardened steel axle. It’s nigh impossible to keep the cutting bit from walking off into the aluminum can (though it can be done)
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Yup. In the hierarchy of materials, aluminum is only a couple steps up from dirt.
Human flesh
plastic
aluminum
mild steel
tool steel
HSS
carbide
diamond
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Not entirely correct.
HK SK8 and Trampa motors use a key to secure the can to the axle.
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These motors need redesigning
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You have photos? Have seen it? @taz
If you have steel against aluminum. If the end cap bolts fail then the aluminum rotor will get eaten by the keyway. There’s not much thickness in the motor really.
Unless, you’re referring to a different size keyway than a standard 3x3.
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Not only that, but even with a key, that doesn’t stop the shaft from wobbling out the bore. Keeps things from spinning sure, but doesn’t help with the other axes.
Yes. I had trampa motors and currently have SK8 motors.
I am at work so can’t take pictures right now but I will take some when I get home.
It is the standard 3x3 key and there are zero problems with the key eating through the aluminium can. There is quite a bit of material on the end nub.
Apart from the key there are also 1 or 2 (can’t remember for sure) screws holding everything in place.
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Nah fuck that. Not touching motors 
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come on just the cans
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Is it only @hummieee and @rey8801 that made motors from scratch? Maybe we can run hummies as outrunners 
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well I didn’t make the stator. I wouldn’t know how cast or machine it right 
All the rest is feasible. IN my case I was so woried about can coming loose or staotr moving that now the problem is disassemble them…I don’t think they will move any soon 
I put keyway, grub screws everywhere.
I wanna try your drives, but I’m scared to even ask about the cost.