[PSUBS-MAILIST] MK101 oil compensation tap

Cliff Redus via Personal_Submersibles personal_submersibles at psubs.org
Thu May 21 21:15:19 EDT 2015


Hugh, I have been called a lot of things but never an artist.  Thanks.
Speaking of works of art, how are you coming with Q-Sub?
Best Regards
Cliff




Cliff Redus
Redus Engineering
USA mobile:  830-931-1280
cliffordredus at sbcglobal.com 
      From: Hugh Fulton via Personal_Submersibles <personal_submersibles at psubs.org>
 To: 'Personal Submersibles General Discussion' <personal_submersibles at psubs.org> 
 Sent: Thursday, May 21, 2015 4:20 PM
 Subject: Re: [PSUBS-MAILIST] MK101 oil compensation tap
   
I Think Cliff is more an artist than Engineer!!
Looks beautiful.

Probably works as well!  ;)
Hugh


-----Original Message-----
From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org]
On Behalf Of hank pronk via Personal_Submersibles
Sent: Friday, 22 May 2015 8:43 a.m.
To: Personal Submersibles General Discussion
Subject: Re: [PSUBS-MAILIST] MK101 oil compensation tap


Agreed, that is so sexy and built to perfection.
Hank--------------------------------------------
On Thu, 5/21/15, Alan James via Personal_Submersibles
<personal_submersibles at psubs.org> wrote:

 Subject: Re: [PSUBS-MAILIST] MK101 oil compensation tap
 To: "Personal Submersibles General Discussion"
<personal_submersibles at psubs.org>
 Received: Thursday, May 21, 2015, 4:16 PM
 
 Just had a
 look at your R300 modifications with the thrusters mounted  on therear of
the sub. Looking really good. I think you will  like how it
performs.http://www.psubs.org/projects/1237684922/mk-101thruster/
 Alan
        From: Cliff Redus via
 Personal_Submersibles
 <personal_submersibles at psubs.org>
 
 To: Personal
 Submersibles General Discussion
 <personal_submersibles at psubs.org>
  Sent: Friday, May 22,
 2015 7:25 AM
  Subject: Re:
 [PSUBS-MAILIST] MK101 oil compensation tap
 
  
  Rick, I
 am not a machinist as well.  I have a friend who is and  owns his own
machine shop.  I outsourced all the machined  parts to him.  I don't
remember the total cost  but there was some setup and learning curve on the
first of  these.  I asked him what he thought  it would cost to
machine future versions ;hub(1), stand offs(3), kort
 nozzle(1) and adapter(1) for Subconn electrical  penetrator).  He thought
he could do the 6 parts  for $1500 each.   This is still a bit pricey but
better  than OTS thrusters.  The problem with this kind of stuff is  there
is not enough volume to drive a lot of cost out by  going to castings.
 Cliff
 
    
 
  
  From: Rick Patton via
 Personal_Submersibles
 <personal_submersibles at psubs.org>
 
 To: Personal
 Submersibles General Discussion
 <personal_submersibles at psubs.org> 
 
 Sent:
 Thursday, May 21, 2015 12:34 PM
  Subject: Re:
 [PSUBS-MAILIST] MK101 oil compensation tap
 
  
 Thanks
 Cliff,I was very
 impressed on how well you documented the process as it sure  helps us
all.Did you  machine the SS part that screws into the lower end of the
 101 yourself or did you have a machine shop do it?  If you  outsourced it,
do you remember how pricey it was? I like the  the concept but don't have
the capability of doing it  myself unfortunately.Rick  On Thu,  May 21, 2015
at 3:26 AM, Cliff Redus via  Personal_Submersibles
<personal_submersibles at psubs.org>
 wrote:
 
 
 Rick, I
 updated the MK101 thruster project at the Psub.org web  site to show the
assembled thrusters installed on the
boat http://www.psubs.org/projects/1237684922/mk-101thruster/ . The  next
time I pull the thrusters off, I will add a picture of  the fully assembled
thruster alone.  I have not added oil  yet.  This is a dry fit only.  I am
leaning towards doing  what Alec did with his idea to add the SS set screw
to the  apex of the caps for fillings and to remove air.  This is  a great
idea.
 Cliff
 
 
 
    
    From: Rick Patton via
 Personal_Submersibles <personal_submersibles at psubs.org>
  To: Personal
 Submersibles General Discussion <personal_submersibles at psubs.org>
 
  Sent: Wednesday, May
 20, 2015 9:56 PM
  Subject: Re:
 [PSUBS-MAILIST] MK101 oil compensation tap
 
  
 Any
 pictures Cliff?Rick
 On Wed, May 20, 2015 at 1:07 PM, Cliff
 Redus via Personal_Submersibles <personal_submersibles at psubs.org>
 wrote:
 
 
  Small Tygon flexible tube filled with oil.  No  holes in housing.  On the
SS part that screws into the side  of the housing, I have a 1/4" tubing with
Swagelok  compression fitting.  I will connect to this  port.
 Cliff
 
 
 
 
 Cliff Redus
 Redus
 Engineering
 USA mobile:  830-931-1280
 cliffordredus at sbcglobal.com
 
        
 From: Alan
 James via Personal_Submersibles <personal_submersibles at psubs.org>
  To: Personal
 Submersibles General Discussion <personal_submersibles at psubs.org>
 
  Sent: Wednesday, May
 20, 2015 4:17 PM
  Subject: Re:
 [PSUBS-MAILIST] MK101 oil compensation tap
 
  
 Cliff,how are you compensating for oil expansion  due to heat with the KISS
method.Are you just drilling holes in the housing  & using tube?Alan
    
 
    From: Clifford Redus
 via Personal_Submersibles <personal_submersibles at psubs.org>
  To: Personal
 Submersibles General Discussion <personal_submersibles at psubs.org>
 
  Sent: Thursday, May 21,
 2015 8:43 AM
  Subject: Re:
 [PSUBS-MAILIST] MK101 oil compensation tap
 
  
 Actually
 in the spirit of KISS, I am going to start out using oil  pressure
compensation.  If I run into any issues, I will  look at using the air or
this hybrid of oil and air with a  regulator.  
 
 
 Cliff Redus
 
 
 On May 20, 2015, at 2:30 PM, Alan James via  Personal_Submersibles
<personal_submersibles at psubs.org>
 wrote:
 
 Jon,the
 alternative is to follow Hugh's idea that Cliff is using  & I am going to
test out,& put a regulator in the  system that is set it to around 4psi
internal  overpressure. This means you can fill  with oil & not worry about
getting everylast drop going in, or drilling the housing. You  will also be
able to run it air compensated. There is the safety feature that if you leak
oil  there is plenty of air to replace it.Cliff already has the parts
sorted, just put your  order in:)Alan
  
      
 From: Jon
 Wallace via Personal_Submersibles <personal_submersibles at psubs.org>
  To: Personal
 Submersibles General Discussion <personal_submersibles at psubs.org>
 
  Sent: Thursday, May 21,
 2015 5:47 AM
  Subject: Re:
 [PSUBS-MAILIST] MK101 oil compensation tap
 
  
 
 How
 important is it to get every last air bubble out?  Surely a  fraction  of
the total volume is not going  to result in catastrophic failure of  the
motor housing, is it?
 
 
 
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