[PSUBS-MAILIST] information on viewports

Sun Mar 17 13:00:02 EDT 2024

Hank, when you did the epoxy dome experiment, did you happen to notice whether that 0.040" was due to deformation of the dome, versus extrusion / creep right at the seat?

Sean
-------- Original Message --------
On Mar 17, 2024, 04:51, hank pronk via Personal_Submersibles wrote:

> Hi Jeff, Hank Pronk here. I did do some testing with epoxy as a material for fabricating domes. I did destructive testing and cycle testing. Although the material stood up compared to acrylic in destructive tests, I had some real concerns with the cycle test results. After a few thousand cycles, the Epoxy was deflecting (bending) by .040 inches more than the starting point. I am not qualified to comment on whether that is okay or not. Had all testing continued to compare with acrylic I may have continued. I would not attempt to use Epoxy to fabricate ports.
>
> When designing your sub, you must consider how you will use it and where. Once you decide where the sub will be operating, check for launch points and measure the water depth at those point. Design the sub so it can float off a standard boat trailer.
>
> Hank
>
> On Saturday, March 16, 2024 at 10:52:36 AM MDT, Jefferson Tortorelli via Personal_Submersibles <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
>
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>
> Website: www.Tortorelli.com
>
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>
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