"zadtheinhaler" (zaddikim)
11/09/2013 at 14:34 • Filed to: None
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"zadtheinhaler" (zaddikim)
11/09/2013 at 14:34 • Filed to: None | 0
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!!!error: Indecipherable SUB-paragraph formatting!!! article about 3D printing and how they're first published product is a 1911 pistol clone. The author pointed out that:
"If you're looking for a way to demonstrate your 3D printing prowess, how about something like an engine? Given the right design, they're more complicated than a gun, and a really small Wankel engine would be really cool."
3D printed Wankel? I'll take a 4-rotor, thanks!
SteyrTMP
> zadtheinhaler
11/09/2013 at 23:37 |
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I really don't see sintered metals being a long-term solution. The constant pressure of an engine wouldn't last long, methinks. I'd like to see them try a SMG 3D-printed, with a 1200-1800rpm rate. Wouldn't last long.
I'm no metallurgist, just an idle observation. I have half a mind to start a Kickstart for my 3D printer, as at the current wage, it'll be years before it's up and running at this rate.
Edit:
http://www.sciencedirect.com/science/articl…
http://physics.stackexchange.com/questions/1463…
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zadtheinhaler
> SteyrTMP
11/10/2013 at 03:47 |
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Interesting Articles, thanks!
The second article apppears to state that if one rigidly controls the environmental variables, one can achieve cast strength. Would that not be sufficient for a Wankel? Keep in mind, I'm no metallurgist either! :-P
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SteyrTMP
> zadtheinhaler
11/10/2013 at 12:40 |
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I think they were saying you'd have to equally sinter each little piece of metal, then it'd have to be heated, then hardened. While the laser wouldn't be hard to regulate, it'd be the equality of the powdered metal.
The environmental control they're talking about is laboratory level... no way is it going to be done on a RepRap.
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zadtheinhaler
> SteyrTMP
11/10/2013 at 12:54 |
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Heh, fair point- the kind of sintering they're talking about requires machinery in the six-figure range at the very least.
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SteyrTMP
> zadtheinhaler
11/10/2013 at 12:55 |
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At which point investment-grade castings are still cheaper.
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SteyrTMP
> SteyrTMP
11/10/2013 at 13:17 |
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Again, what do I know, but I have a feeling that plastics will benefit much more in this case. Making something similar to a Glock or another plastic frame with metal inserts would do much better. The only issue would be finding the correct plastics, and making sure they are bonding right. I don't know if it's going to bond correctly by just putting a hot drop of plastic on top of more plastic. It's obviously not the same thing as using molds.
It'd be badass to be able to make AUG-type stocks for things like the 10/22. Someday...
Like these, but 3D-printed. I think this would be feasable with a RepRap, due to the fact that they aren't taking any actual beatings, i.e. no parts are relying on the plastic to function as part of the bolt/barrel/trigger group.
http://ironwooddesigns.com/IWD1022.html