<div dir="ltr"><div>Hi Hank,</div><div>How was the alu ring attached to the 2" reinforcing ring before you added the studs? I think its time for some picture updates on your page... :)</div><div> </div><div>Kind Regards</div><div>James</div></div><div class="gmail_extra"><br><div class="gmail_quote">On 22 April 2015 at 18:07, hank pronk via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
Emile,<br>
I am pulling pretty hard on the straps because the dome is 150 lbs on its own. Also I am relying on the EPDM to seal at the surface. I could have put more bolts in the AL ring also but this way I don't have to worry about pulling the treads out of the AL. I used the AL you suggested when I asked James.<br>
Hank--------------------------------------------<br>
On Wed, 4/22/15, Emile van Essen via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br>
<br>
Subject: Re: [PSUBS-MAILIST] dome mount<br>
To: "'Personal Submersibles General Discussion'" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
Received: Wednesday, April 22, 2015, 9:26 AM<br>
<div class="HOEnZb"><div class="h5"><br>
Which Alu? Yield varies<br>
from 100 to 450 N/mm2<br>
AW 5083 or Anodised<br>
AW6082 is the best for domerings in my opinion.<br>
<br>
Emile<br>
<br>
-----Oorspronkelijk bericht-----<br>
Van: Personal_Submersibles [mailto:<a href="mailto:personal_submersibles-bounces@psubs.org">personal_submersibles-bounces@psubs.org</a>]<br>
Namens hank pronk via Personal_Submersibles<br>
Verzonden: woensdag 22 april 2015 13:50<br>
Aan: <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br>
Onderwerp: [PSUBS-MAILIST] dome mount<br>
<br>
I had a design problem with my<br>
AL dome seat. I had the strap assembly<br>
bolted to the AL seat only, and that was a<br>
mistake. After installing the<br>
dome<br>
assembly on the sub I double checked the fit and found that<br>
when I<br>
tighten the straps the Al seat was<br>
distorting. I am not very experienced<br>
working with large AL material and did not<br>
realize how Whimpy it is. I<br>
corrected this<br>
by drilling through the AL and into the 2in thick<br>
reinforcing<br>
ring and installing studs. Now<br>
the strap assembly pulls from the steel<br>
ring. I simply tighten the strap assembly<br>
until I see an even impression in<br>
the EPDM<br>
gasket. I am now reassembling Gamma, I am excited to get<br>
back in<br>
the water and try out my dome.<br>
Hank<br>
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