[PSUBS-MAILIST] information on viewports

[Jefferson Tortorelli via Personal_Submersibles]

Hi Jon:

I just responded to Sean regarding his information on the viewports. The design I have come up with are for flat viewports, but they are not round. I have some preliminary design drawings and told Sean I am a little embarrassed to share as they are not quite like what you guys are building. I am more interested in the design and build and maybe (at this point) ability to dive to 300 feet. I am currently in process of building a full scale mockup in plywood to really see if I like the design and if it will accommodate what I want.

Jeff

Jefferson Tortorelli
Tortorelli Creations
4910 Santa Anita Avenue
El Monte, CA 91731
Cell: 909-908-3795
Shop: 909-370-3131
Website: www.Tortorelli.com<http://www.Tortorelli.com>
Instagram: @tortorellicreations


From: Personal_Submersibles <personal_submersibles-bounces at psubs.org> On Behalf Of Jon Wallace via Personal_Submersibles
Sent: Saturday, March 16, 2024 11:21 AM
To: personal_submersibles at psubs.org
Subject: Re: [PSUBS-MAILIST] information on viewports

Hello Jeff, and welcome to the group.  I concur with Sean's recommendations and also his assessment of commercially available viewports.  If you are planning on just working with flat viewports you will find an easier path than fabricating domes.  We can hook you up with an acrylic supplier when you are ready for material.

Jon


On Saturday, March 16, 2024 at 01:20:26 PM EDT, Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org<mailto:personal_submersibles at psubs.org>> wrote:


Hello Jeff.

A few important resources for you to check out:

1) Rules for Building and Classing Underwater Vehicles, Systems, and Hyperbaric Facilities - American Bureau of Shipping.

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

1) Handbook of acrylics for submersibles, hyperbaric chambers, and aquaria. - Jerry D. Stachiw

https://www.amazon.com/Handbook-Acrylics-Submersibles-Hyperbaric-Chambers/dp/1930536151

2) Safety standard for pressure vessels for human occupancy (PVHO-1), published by the American Society of Mechanical Engineers (ASME)

https://www.asme.org/codes-standards/find-codes-standards/pvho-1-safety-standard-pressure-vessels-human-occupancy/2023/drm-enabled-pdf

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.

Sean

-------- Original Message --------
On Mar 16, 2024, 10:52, Jefferson Tortorelli via Personal_Submersibles < personal_submersibles at psubs.org<mailto:personal_submersibles at psubs.org>> wrote:


Hi:



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.



Thanks,



Jeff



Jefferson Tortorelli

Tortorelli Creations

4910 Santa Anita Avenue

El Monte, CA 91731

Cell: 909-908-3795

Shop: 909-370-3131

Website: www.Tortorelli.com<http://www.Tortorelli.com>

Instagram: @tortorellicreations




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