[PSUBS-MAILIST] Depth rating for 3D prints

[Douglas Suhr via Personal_Submersibles]

Looking wonderful Alec, Shackleton is a one-of-akinder for sure. Great
improvisation with the paint arm MacGyver, hahaha :) ~ Doug S.

On Mon, Jun 13, 2016 at 9:19 PM, Rick Patton via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Some really nice work and good documentation, Thanks
>
> Rick
>
> On Mon, Jun 13, 2016 at 3:01 PM, Alec Smyth via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> 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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>>
>
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