How are you doing your other thru hull fittings?
Brian
-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org]On Behalf Of Jim Kocourek
Sent: Sunday, December 30, 2007 6:58 AM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Hatch fabrication dilemma
I'm hoping for some design input. I am doing final design on the sleeve
assemblies that the forward thrusters will pivot on. I plan on a final ID
of
1.5 inches and an OD of about 2.5 inches. This will allow adequate space
to
machine a seal chamber as well as provide more than adequate strength.
Because the welding will shrink and distort the tube I plan on doing final
machining after welding. I plan on welding the sleeve into a 3/4 inch
thick
and 5 inch diameter flat disc prior to machining. after this I plan on
cutting a five inch hole in the hull and welding the disc in place. I feel
that this method will put the final weld distortion far enough away so as
to
not cause distortion of the sleeve. My hull is 48 inches in diameter and
1/2
inch thick.
Does this sound reasonable to those of you who have been there before or
do
you have better ideas.
Thanks in advance!
Best Regards,
Jim Kocourek
----- Original Message -----
From: "James Frankland" <james@guernseysubmarine.com>
To: <personal_submersibles@psubs.org>
Sent: Wednesday, October 17, 2007 2:46 PM
Subject: Re: [PSUBS-MAILIST] Hatch fabrication dilemma
Hello Alec.
I dont suppose you have any pictures of the hatch dilemma you could share
with us? Im particually interested in seeing how you get on as im going
to be doing my own hatch very soon.
Did you make a jig or cramps of any sort to hold the ring and dish
together for welding?
I was thinking of making a jig that would hold the ring down tight and
cramp the dish on top to keep it all rigid to minimise distortion. But
im
not sure if thats needed. What do you think?
Anyway, good luck. i hope it doesnt take to much fixing.
James
----- Original Message -----
From: "Smyth, Alec" <Alec.Smyth@compuware.com>
To: <personal_submersibles@psubs.org>
Sent: Wednesday, October 17, 2007 5:22 PM
Subject: RE: [PSUBS-MAILIST] Hatch fabrication dilemma
Phil, you apparently replied but didn't type anything?
Thanks,
Alec
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From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Phil Nuytten
Sent: Wednesday, October 17, 2007 11:22 AM
To: INTERNET:personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] Hatch fabrication dilemma
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