[PSUBS-MAILIST] Depth rating for 3D prints

[Douglas Suhr via Personal_Submersibles]

Alan, my thoughts exactly... easy rough-water entry/egress. ~ Doug S.

On Tue, Jun 14, 2016 at 12:32 AM, Alan James via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Wow you've been busy Alec, looking good.
> You have a nice high conning tower. Will be no
> trouble getting in in rough conditions:)
> Alan
>
>
> ------------------------------
> *From:* Alec Smyth via Personal_Submersibles <
> personal_submersibles at psubs.org>
> *To:* Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> *Sent:* Tuesday, June 14, 2016 1:01 PM
> *Subject:* [PSUBS-MAILIST] Depth rating for 3D prints
>
> Hi all,
>
> I'm going to test using 3D printed Kort nozzles on Shackleton, and I have
> an interesting unknown. It would be nice to print them solid, but it would
> just take too long and probably create shrinkage issues. So the question
> is, what fill percent suffices (in 3D printing you get to specify the
> percentage of material fill, the rest being air). I called Greg Cottrell
> and he didn't have any data on prints, but he did have some on the depth
> rating of different types of buoyancy foam.I did a napkin calculation and
> it would appear that, at least if the print behaves like foam of similar
> density, I'm fine. But does anyone have any data on this? Or does anyone
> have a small pressure test chamber for which we might print some test
> samples? I would need to test to about 500 psi.
>
> BTW I've updated Shackleton's project page:
> http://www.psubs.org/projects/1234567810/shackleton/
>
>
>
> Thanks,
>
> Alec
>
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