[Project VIRUS][Week 6] A bit on 3D printing

RE: [Project VIRUS][Week 6] A bit on 3D printing

ipv1 — Tue, 09 Jun 2015 04:21:17 GMT

Thanks Enrico sir. I will be sure to do more stuff on moving parts net time. [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-5c1a8767-15a1-462d-bca2-57ee169699f2/contentimage_5F00_3.png:16:16]

Andy sir. You are right when you say that large gaps are possible but not all gaps are possible. I wrote this in the beginner context and once people experiment a bit, they begin to understand how gaps need supports and where they do not. Overhangs like the one in the side piece of the frame above are very small but cannot be printed without supports because the edge turns 90 degrees and if there is nothing at the corners for support, then the overhang just does not get fabricated even if it is small.

Another drawback in my experiments of overhangs was that if the span is larger, chances are that the layer adhesion becomes poor and will cause issues when user strain.

These are the reasons I ask the beginners to take consideration when designing for 3D print. Overhangs and gaps will come automatically and depending upon the 3D printer in hand, theey may or may not be completely possible. [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-5c1a8767-15a1-462d-bca2-57ee169699f2/contentimage_5F00_1.png:16:16]

RE: [Project VIRUS][Week 6] A bit on 3D printing

Workshopshed — Mon, 08 Jun 2015 20:56:15 GMT

A good article but I don't fully agree that you can't print in air. As long as there is a support on the other side you can span quite large gaps. For example I just printed a part with a horizontal hole in it. Bit even quite large spans are possible. Overhangs are also possible as long as your transistion from vertical to horizontal is not too sharp.

RE: [Project VIRUS][Week 6] A bit on 3D printing

balearicdynamics — Mon, 08 Jun 2015 20:50:14 GMT

Great job and great documentation. It is one of the few times I see a real mechanical 3D printed object instead of endless videos printing shapeless plastic nodules [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-5c1a8767-15a1-462d-bca2-57ee169699f2/contentimage_5F00_2516.png:16:16]

Enrico