Quote:
Originally Posted by Bandit50
You have never welded with aluminum have you? NiAl requires very intensive things when you temper it.. usually its best to do it in the modeling blocks.
Gear position does not need to be anything close to the standard Ill show you once i get the shell drafted  . The only thing that matters is the constraints of the physical size of the shell, that is, if you want to to fit into a standard gun. A great example of this is the Airsoft minigun what Gear box does that use? >.>
and kids I don't recommend using your cooking oven for tempering your steel mom will get mad, and you may burn down the house or yourself.
but thanks sleepy, this wasn't ridiculous at all. |
LoL. Yes I have actually.
The guy you were replying to was talking about custom gears. I doubt you'd want to manufacture your gears out of aluminum. Just saying.
Well, you said you wanted this to be a two step project. First is copy an existing gearbox. In this case, you'd want to know gear positions because you will be using commercially available gears that must mesh well. The second step is eventually designing your own gearbox, which as I've said is the only step where knowing the overall dimensions matter more because that is your space constraint. So I doubt we are in disagreement.
I'm more at odds with this quote:
Quote:
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Anyone can temper a metal so long as it's not alloy. Then it gets expensive, there is frequencies involved, and usually some extra steps to ensure the product keeps it shape, and is on the cusp of fusion where the material breaks down into liquid state.
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Lets use examples. Steel is an alloy. You can temper quench hardened O2 tool steel at 450F for 2 hours in your average home oven that can reach those temperatures. They are obviously not industrial ovens and have poor temperature stability, but point being you could do it.
As for frequencies, I dont know what this means.
The product will keep its shape if the part does not relax residual stresses in a short time interval, which is what a proper tempering cycle is supposed to do, slowly relieve residual stresses.
Again, tell me a tempering process that is anywhere close to liquidus temperatures for alloyed constituents. It wouldnt be called tempering if you are anywhere close to melting temperature.
Anyway good luck with your project. It will take me maybe 1-2 days max to CMM probe the whole gearbox and CAD it too if I cared to but you like to do your own thing so good luck. Just don't use aluminum for the gears.