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<p class="MsoNormal"><span style="font-size:11.0pt">Thank you Sean. I have spent a good part of this morning reviewing all or most of the posts by your members. Lots of information that is really quite helpful. I know that of the two types of people interested
in building a submersible, I fit the group that loves the build and don’t think I (at this point) care to dive deeper than 300 feet. It is the build. I have a preliminary design drawing. I actually am a little embarrassed to share as it certainly differs from
what I have seen you guys doing.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I did read something this morning about Pronk making/casting epoxy viewports and a link to a epoxy supplier.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I will continue my research which I find quite interesting!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Jeff<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Jefferson Tortorelli<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Tortorelli Creations<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">4910 Santa Anita Avenue<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">El Monte, CA 91731<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Cell: 909-908-3795<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Shop: 909-370-3131<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Website: <a href="http://www.Tortorelli.com">
<span style="color:#467886">www.Tortorelli.com</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Instagram: @tortorellicreations<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Personal_Submersibles <personal_submersibles-bounces@psubs.org>
<b>On Behalf Of </b>Sean T. Stevenson via Personal_Submersibles<br>
<b>Sent:</b> Saturday, March 16, 2024 10:18 AM<br>
<b>To:</b> personal_submersibles@psubs.org<br>
<b>Subject:</b> Re: [PSUBS-MAILIST] information on viewports<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt">It appears that I misnumbered those resources, which should obviously have been numbered 1, 2, and 3.</span><br>
<br>
Sean<br>
-------- Original Message --------<br>
On Mar 16, 2024, 11:16, Sean T. Stevenson < <a href="mailto:sean.t.stevenson@protonmail.com">
sean.t.stevenson@protonmail.com</a>> wrote:<span style="font-size:12.0pt"><o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><br>
Hello Jeff.<br>
<br>
A few important resources for you to check out:<br>
<br>
1) Rules for Building and Classing Underwater Vehicles, Systems, and Hyperbaric Facilities - American Bureau of Shipping.<br>
<br>
<a href="https://ww2.eagle.org/content/dam/eagle/rules-and-guides/current/special_service/7-rules-for-building-and-classing-underwater-vehicles,-systems-and-hyperbaric-facilities-2024/7-uwvs-rules-jan24.pdf">https://ww2.eagle.org/content/dam/eagle/rules-and-guides/current/special_service/7-rules-for-building-and-classing-underwater-vehicles,-systems-and-hyperbaric-facilities-2024/7-uwvs-rules-jan24.pdf</a><br>
<br>
1) Handbook of acrylics for submersibles, hyperbaric chambers, and aquaria. - Jerry D. Stachiw<br>
<br>
<a href="https://www.amazon.com/Handbook-Acrylics-Submersibles-Hyperbaric-Chambers/dp/1930536151">https://www.amazon.com/Handbook-Acrylics-Submersibles-Hyperbaric-Chambers/dp/1930536151</a><br>
<br>
2) Safety standard for pressure vessels for human occupancy (PVHO-1), published by the American Society of Mechanical Engineers (ASME)<br>
<br>
<a href="https://www.asme.org/codes-standards/find-codes-standards/pvho-1-safety-standard-pressure-vessels-human-occupancy/2023/drm-enabled-pdf">https://www.asme.org/codes-standards/find-codes-standards/pvho-1-safety-standard-pressure-vessels-human-occupancy/2023/drm-enabled-pdf</a><br>
<br>
As for manufacturers, an internet search will likely reveal a number of acrylic suppliers who will manufacture viewports. Purchasing will inevitably be more expensive than DIY, because a manufacturer can only sell you a PVHO-1 certified viewport for liability
reasons. For a PSub, you can achieve the intent without the exhaustive documentation requirements of PVHO-1 by designing to the standard, using the correct slush cast PMMA material, following the appropriate annealing schedule after forming, and then by subsequently
testing. Per the PSubs ethos, comply with the commercial rules as far as is possible / practicable.<br>
<br>
Sean<br>
<br>
-------- Original Message --------<br>
On Mar 16, 2024, 10:52, Jefferson Tortorelli via Personal_Submersibles < <a href="mailto:personal_submersibles@psubs.org">
personal_submersibles@psubs.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;mso-ligatures:standardcontextual">Hi:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-ligatures:standardcontextual">I am new to this organization and am currently in the design phase of a two person submersible. I am looking for information on obtaining acrylic viewports or learning (if
possible) how to fabricate my own.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-ligatures:standardcontextual">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-ligatures:standardcontextual">Jeff<b><o:p></o:p></b></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Jefferson Tortorelli<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Tortorelli Creations<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">4910 Santa Anita Avenue<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">El Monte, CA 91731<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Cell: 909-908-3795<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Shop: 909-370-3131<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Website: <a href="http://www.Tortorelli.com">
www.Tortorelli.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Instagram: @tortorellicreations<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
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