[PSUBS-MAILIST] Alec's new sub

Mon Jun 29 12:05:45 EDT 2015

I was thinking more about the wash and slosh motions of surface water at sea. If you take the side load off the diaphragm with a very slightly oversized tube, then it would take the side loads off the soft plastic structure. That occasionally violent back and forth motion might cause some hardening over time and fracture in the folds.
Vance

-----Original Message-----
From: Alec Smyth via Personal_Submersibles <personal_submersibles at psubs.org>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Sent: Mon, Jun 29, 2015 11:57 am
Subject: Re: [PSUBS-MAILIST] Alec's new sub

Yep, I intend to make a fairing over the thruster mounts for just that reason. I tried 3D-printing one but it was not sturdy enough. Will probably just mill it out of solid UHMW plastic. 

On Mon, Jun 29, 2015 at 11:52 AM, via Personal_Submersibles    <personal_submersibles at psubs.org> wrote:   

    Alec,      
      The compensating diaphragms might want rigid, free-flooding tubes to sit in for stability in a seaway, and to protect them from snags and dumb feet.     

      Vance

       -----Original Message-----
 From: Alec Smyth via Personal_Submersibles <personal_submersibles at psubs.org>
        To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>

 Sent: Mon, Jun 29, 2015 11:26 am         
 Subject: Re: [PSUBS-MAILIST] Alec's new sub         

 That is readily available, just look online for "molded fiberglass grating". There is some similar stuff that's easier on the feet, which you can find searching "pultruded grating", but I went for this one with wider openings because the midships thrusters blow right through it.           

 On Mon, Jun 29, 2015 at 11:14 AM,             swaters at waters-ks.com via Personal_Submersibles             <personal_submersibles at psubs.org> wrote:             

 Very cool. I am curious about the grate too.               

 Thanks,               

 Scott Waters               

 Sent from my U.S. Cellular® Smartphone                

 -------- Original message --------
 From: Alec Smyth via Personal_Submersibles <personal_submersibles at psubs.org> 
                Date:06/29/2015 10:05 AM (GMT-06:00) 
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 

 Cc:                 
 Subject: Re: [PSUBS-MAILIST] Alec's new sub                 

 Made by Greg Cottrell many years ago. It was at the time the thickest he'd made and wasn't sure it would work out, but it came out really well.                 

 On Mon, Jun 29, 2015 at 10:57 AM, via Personal_Submersibles                   <personal_submersibles at psubs.org> wrote:                   

 Alec, The submarine looks amazing!!! I can't wait to see it in person! Where did you get the acrylic dome at?                      

 Thanks,                       
 Scott Waters                       

                        -------- Original Message --------
 Subject: [PSUBS-MAILIST] Alec's new sub
                         From: Alec Smyth via Personal_Submersibles
 <personal_submersibles at psubs.org>
                         Date: Sat, June 27, 2015 7:40 pm
 To: Personal Submersibles General Discussion
 <personal_submersibles at psubs.org>

 Hey everyone, I'm breaking cover with the project sub. It is in need of a name. If the pictures inspire any thoughts that are not rude, I'm all ears for suggested names!                          

                           http://www.psubs.org/projects/1234567810/newsub/                           

 Best,                          

 Alec                          

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