[PSUBS-MAILIST] roundness

[Sean T. Stevenson via Personal_Submersibles]

I'm surprised that EE gave you a feasible quote, but I guess with oil prices down they're not making too many 12" thick 144" hemispheres these days.

Sean


On July 24, 2015 1:20:58 PM MDT, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>Brian,
>I think a good fabricator will provide what you ask for.  Edmonton
>Exchanger is a pretty Kik Ass outfit.
>Building an escape pod may seem excessive I suppose, but I am just not
>feeling comfortable at depths that I can not swim out of.  I can build
>the pod for under 5K, that seems like pretty cheap insurance.  Remember
>I am not a diver and I will spend most of my time at 400feet.  
>I did consider building a second Gamma, just make a copy. It is much
>cheaper to build a pod and pretty quick also.  I am not sure I could
>build a replica Gamma by spring.  
>
>Hank --------------------------------------------
>On Fri, 7/24/15, Brian Cox via Personal_Submersibles
><personal_submersibles at psubs.org> wrote:
>
> Subject: Re: [PSUBS-MAILIST] roundness
>To: "Personal Submersibles General Discussion"
><personal_submersibles at psubs.org>
> Received: Friday, July 24, 2015, 1:01 PM
> 
> Basically what it boils down to is
> how humanly possible it is to get it as near as perfect as
> you can.  If you first instruct the fabricators to get
> it as close as possible, then you need to go from
> there.  You can always massage it into a perfect sphere
> by using the proper amount of leverage. 
> 
>   It seems to me, though, if you're going to have an
> escape pod you might as well just build another sub for all
> the trouble it will be worth.
> 
> Brian 
> 
> --- personal_submersibles at psubs.org
> wrote:
> 
>From: hank pronk via Personal_Submersibles
><personal_submersibles at psubs.org>
>To: Personal Submersibles General Discussion
><personal_submersibles at psubs.org>
> Subject: Re: [PSUBS-MAILIST] roundness
> Date: Fri, 24 Jul 2015 11:04:30 -0700
> 
> I see you are a visual guy like me.
> Hank
> --------------------------------------------
>On Fri, 7/24/15, Brian Cox via Personal_Submersibles
><personal_submersibles at psubs.org>
> wrote:
> 
>  Subject: Re: [PSUBS-MAILIST] roundness
>To: "Personal Submersibles General Discussion"
><personal_submersibles at psubs.org>
>  Received: Friday, July 24, 2015, 12:00 PM
>  
>  Hank,   I would
>  certainly say no more that this !  See Picture
>  
>  Brian 
>  
>  --- personal_submersibles at psubs.org
>  wrote:
>  
>From: hank pronk via Personal_Submersibles
><personal_submersibles at psubs.org>
>  To: personal_submersibles at psubs.org
>  Subject: [PSUBS-MAILIST] roundness
>  Date: Fri, 24 Jul 2015 10:35:08 -0700
>  
>  Hi All,
>  Can someone tell me the allowable out of roundness
>  percentage is for a sphere hull.
>  Hank
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