[PSUBS-MAILIST] Gamma ring machining
Al Secor via Personal_Submersibles
personal_submersibles at psubs.org
Sat Mar 7 20:06:15 EST 2015
I've been a ham for 45 years....WA3PWX
Al Secor
From: via Personal_Submersibles <personal_submersibles at psubs.org>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Sent: Saturday, March 7, 2015 6:32 PM
Subject: Re: [PSUBS-MAILIST] Gamma ring machining
I'm a ham in Sacramento, Ca.
Keith
K6FEE
Hugh Fulton via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>Hi Brian,
>
>I have a Ham guy working with me.
>
>Contact me off line. hc.fulton at gmail.com
>
>
>
>Hugh
>
>
>
>From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Brian Cox via Personal_Submersibles
>Sent: Sunday, 8 March 2015 10:10 a.m.
>To: Personal Submersibles General Discussion
>Subject: Re: [PSUBS-MAILIST] Gamma ring machining
>
>
>
>Hey Alan,
>
> Do you know any Ham radio guys down there ?
>
>
>
>
>
>Brian,
>
>
>
>KK6IRC
>
>
>
>73
>
>--- personal_submersibles at psubs.org wrote:
>
>From: Alan James via Personal_Submersibles <personal_submersibles at psubs.org>
>To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
>Subject: Re: [PSUBS-MAILIST] Gamma ring machining
>Date: Sat, 7 Mar 2015 19:09:51 +0000 (UTC)
>
>Hank,
>
>had a quick search but couldn't find any suitable lapping
>
>solution for a home builder. There were referances to thick
>
>plate glass with a bonded diamond surface & marble as
>
>lapping plates.
>
>Alan
>
>
>
> _____
>
>From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
>To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
>Sent: Saturday, March 7, 2015 11:29 PM
>Subject: Re: [PSUBS-MAILIST] Gamma ring machining
>
>
>
>Alan,
>I have been told that it would work, but I am not convinced. I would think the machined disk needs to be harder so it does not wear down. Honestly I just don't know.
>Hank--------------------------------------------
>On Fri, 3/6/15, Alan James via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>Subject: Re: [PSUBS-MAILIST] Gamma ring machining
>To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
>Received: Friday, March 6, 2015, 9:30 PM
>
>So
>do you think it would work with a flatsheet
>rotating on your reinforcing ring?I
>had thought of doing this with the hatch & landing,
>toget a
>perfect seal, not sure if I would need an orbital
>motionor
>not.Alan
>
> From: hank pronk via
>Personal_Submersibles
><personal_submersibles at psubs.org>
>
>To: Personal
>Submersibles General Discussion
><personal_submersibles at psubs.org>
>
>Sent:
>Saturday, March 7, 2015 12:52 PM
> Subject: Re:
>[PSUBS-MAILIST] Gamma ring machining
>
>
>
>Alan,
>Yes I
>have done lapping in the past. I mostly lap valves in
>engines. It works great on two tapered faces.
>Hank--------------------------------------------
>On Fri, 3/6/15, Alan James via
>Personal_Submersibles <personal_submersibles at psubs.org>
>wrote:
>
> Subject: Re:
>[PSUBS-MAILIST] Gamma ring machining
> To:
>"Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
> Received: Friday, March 6, 2015, 6:39 PM
>
> Hank,are you
> familiar with lapping?Rubbing
>
>two surfaces together with abrasive paste in
> betweenhttp://en.wikipedia.org/wiki/Lapping
> Haven't
> done it but have
>seen it in operation; you can get a very
>
>smoothsurface
> with this technique. Not sure
>if you could adapt it to your
> newflange
> facing machine.The
> machine I
>saw in operation was slow but required very little
> attention.Alan
>
>
> From: hank pronk
>via
> Personal_Submersibles
>
><personal_submersibles at psubs.org>
>
> To: Personal
> Submersibles General Discussion
> <personal_submersibles at psubs.org>
>
>
> Sent:
>
>Saturday, March 7, 2015 12:18 PM
> Subject:
>Re:
> [PSUBS-MAILIST] Gamma ring machining
>
>
>
>Steve,
> I am half way done
>
>building my flange facing machine, I should be mostly
>done
> tomorrow. My rig already weighs
>about 700 lbs. I think
> it is important
>that it is heavy and mine is built heavier
>
>than the ones on YouTube. If it fails I can do as you
> mention. I actually did exactly what you say
>on
> Gamma's window frames. I used paint
>and glass with fine
> wet sand paper. I would
>guess the SS ring was much harder
> than the
>516-70 I have.
> Hank
>
>--------------------------------------------
> On Fri, 3/6/15, Stephen Fordyce via
> Personal_Submersibles <personal_submersibles at psubs.org>
> wrote:
>
>
>Subject: Re:
> [PSUBS-MAILIST] Gamma ring
>machining
> To:
>
>"Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
> Received: Friday, March 6, 2015, 4:06 PM
>
> Hi Hank,
>
>
> We used
>a flame facing machine recently at
> work to
>do a
> stainless steel flange on a
> pressure vessel about 800mm ID.
> We hired it
> to use
>ourselves at great expense, and the thing
>
>weighed a couple of hundred kilos, was very
>
>solid.
> The fitter who did the job was
>very
> experienced
>
>machinist (but hadn't used
> one before)
>but could not get
> the finish
> very smooth - I can't find photos sorry,
>but
> it was like regular machining grooves
>but much
> larger - and
> it
>looked pretty ordinary. He
> spent several
>hours with a
> grinder cleaning
> it up.
> On balance, it
>probably would have
> been easier
> to just flatten it manually
>
>with a grinder (but it was on a
> live
> liquefied natural gas plant and they don't
>like
> sparks:) ). Wasn't critical to
>get a flat
> face as we
>
>were just making room for a
> gasket in a
>slot to have more
>
>
>compression.
> After getting it pretty
>flat
> with a straight
>
>edge, the fine
> stuff/quality control could
>be done by a thin
> layer of paint on a
>known flat plate or
> machined flange
> which you put on the welded
>
>flange and then where there is
> no
>paint
> deposited, you know that area is too
>low. Obviously
> paint is no good, but
>colored oil or 2-layered
> carbon paper
> (nice because then you have a
> trace of it) would probably
>
>work, or
> charcoal.
>
>Cheers,
>
> Steve
> On 06/03/2015 11:40
> PM,
> "hank pronk via
>
>Personal_Submersibles" <personal_submersibles at psubs.org>
> wrote:
> Brian,
>
> No, the machine is
>connected
> to the inside lip of the
> ring. The
> machine rotates
>on a center pivot. The cutter
> rotates
>instead of the part.
>
>
> Hank
>
>
>
>
>--------------------------------------------
>
> On Thu, 3/5/15, Brian
>Cox
> via Personal_Submersibles <personal_submersibles at psubs.org>
> wrote:
>
>
>
>
> Subject: Re:
> [PSUBS-MAILIST] Gamma ring
>machining
>
> To:
>"Personal Submersibles General
>
>Discussion"
> <personal_submersibles at psubs.org>
>
> Received: Thursday,
>March
> 5, 2015, 9:15 PM
>
>
>
>
>
> Hank, are you going to
> be
>
> turning the whole
> fricking sub ?
>
>
>
>
> 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]
> Gamma ring machining
>
>
> Date:
>Thu, 5 Mar 2015 18:00:24 -0800
>
>
>
>
> Today my
> welder came to my shop and
>welded the
>
> reinforcing
>
> ring into
> Gamma, 10 passes, looks perfect!
>
>
>
> Next
> step, machine the
>ring. I am going to make a
>
> flange facing machine from
> a one ton truck full
>
>
> floater differential hub
>and a part or two borrowed
> from
> my
>
>
> spare lathe. The rig will be hydraulic
>drive.
>
> This may
>or may not
> work. :-) If it works and
>I
>
> am confident it
>will, I can also face CT
> lands, with the
> CT
>
>
> welded in place.
>
>
> Hank
>
>
>
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