pencerw

6 ms·

31.
This $6 Nerf gun has 24 parts (plus packaging) and at least 25 assembly steps(pencerw.com)
5 points by pencerw 10y ago|0 comments
32.
The circuitous process of lattice design for 3D printing(pencerw.com)
1 points by pencerw 11y ago|0 comments
33.
Photos and notes from a trip to the Shenzhen electronics malls(pencerw.com)
1 points by pencerw 11y ago|0 comments
34.
by pencerw 11y ago
All, thanks so much for the comments. We wrote this up so long ago; it's really interesting to get feedback now. FWIW, The Infrastructure Observatory is working on more tours like this one, mostly in the NYC area. If you want to get in
35.
by pencerw 11y ago
:) Thanks!
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by pencerw 11y ago
Yeah, that's something I've spent a bunch of time thinking about. I've gotten a lot of emails from people around the industry saying they'd like to be able to share more process data, but I'm not sure what the best
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by pencerw 11y ago
Those are definitely good use cases, yup. There are a few things I can do to increase the value of this part (or similar ones), and in general the high end cycling market tends to require a lot of 1) lightweight structures, which additive i
38.
by pencerw 11y ago
Totally fair question. This part would be really hard to manufacture traditionally - there's a hollow in the middle of the part that couldn't be machined, so you'd have to machine it in two parts and then weld it. That said,
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by pencerw 11y ago
Yeah! That one's pretty nice, though personally I probably would have skipped the gold coating on the lugs.
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by pencerw 11y ago
Yeah, for sure. Carbon fiber tubing is great when you need a long structural element - no need to print that, in my opinion.
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by pencerw 11y ago
As others on this thread hinted at, I'm not sure that would be economical in titanium. But Nervous System (designers of that dress - website is http://n-e-r-v-o-u-s.com/ ) are awesome at that stuff when it comes to po
42.
by pencerw 11y ago
Build time scales pretty closely with the volume of material you're printing, but meshes often require less material to achieve the same mechanical properties. As far as post processing to improve mechanical properties goes: I'm n
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by pencerw 11y ago
Yes! Once I get the seatpost (this part: http://pencerw.com/feed?tag=seatpost ) done, I want to start working on a full bike frame, made to order and assembled individually.
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by pencerw 11y ago
Anodization is definitely an option - you can do some pretty wild colors, too. And a mesh is in the works :)
45.
by pencerw 11y ago
I go into the pricing in a bit more detail in the older post ( http://pencerw.com/feed/2015/3/15/3d-printing-titanium-and-t... ) but the gist is that 1) the powder is expensive, and 2) the machines are re
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by pencerw 11y ago
Do you mean "why threads and not a nut insert?" If so, yeah - for sure, that would be easier. Partly I wanted the challenge, though. There are a lot of applications where nut inserts aren't optimal, and in general they'd
47.
by pencerw 11y ago
Hey all, just posting an update to some older work that I did (and that got posted here by someone else) a few months ago. tl;dr: It's totally possible to print titanium bicycle parts, but the business model needs a bit more work still
48.
3D printing titanium: Learning to learn from success(pencerw.com)
73 points by pencerw 11y ago|35 comments