[PSUBS-MAILIST] Clearances

[Alan James via Personal_Submersibles]

Haha, 
He won't think you are crazy once you are out diving those waters off Hawaii.
I think everyone on Psubs will be envying your dive location.
I like Hanks solution of lots of passes on the acrylic & keeping it cool. You can leave the acrylic in a fridge for several hours before machining. My thought is that any heat from machining is only going to effect a small area around the perimeter as heat transfers slowly through acrylic. 
When I was getting a dome blown Greg Cotteral, Psubs acrylic expert, told me you can hold the acrylic up to sunlight and you get a rainbow effect in stressed areas. That's a rudimentary test.
If you could get Gregg's contact info, you would be privy to some of the best advice you can get.
Alan

Yahoo Mail: Search, organise, conquer 
 
  On Wed, 11 Dec 2024 at 1:52 pm, Rick Patton via Personal_Submersibles<personal_submersibles at psubs.org> wrote:   _______________________________________________
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