[PSUBS-MAILIST] I am not a dork

hank pronk hanker_20032000 at yahoo.ca
Thu Jan 23 19:12:50 EST 2014 

Rick,
The nice thing about a manipulator for a sub is, you want it to be slow and slow is cheap.  Go with big cylinders and a small pump with a restrictor.  It will be so easy to operate it you won't believe it.
Hank



On Thursday, January 23, 2014 4:57:21 PM, Land N Sea <landnsea1 at hawaiiantel.net> wrote:
  
Most of what I plan to use the arm for is for gathering all the gold 
doubloons that fell out of Captain Cooks pockets while he was here in Kealakekua 
bay wind surfing, but I would settle for an old bottle or two off his ship if I 
had to. I was more wondering if I came across an abandoned small anchor or 
something else that weighed around 50 Lb.'s or so if it would up end the boat 
much? I would rather not use the forward MBT to keep the trim because of having 
to dump air at the proper rate while ascending. Tagging it with a line and 
letting the guys in the support boat lift it also sounds good but I would have 
to master the manip technique.  

Rick 
  
From: Vance Bradley  
Sent: Thursday, January 23, 2014 11:20 AM 
To: Personal Submersibles General 
Discussion  
Subject: Re: [PSUBS-MAILIST] I am not a dork

Manips are for manipulating, not lifting. Most light arms can do 50-60#. 
for lifting you could hook on a (releasable) cables and lift with the MBTs. 
Better yet, take a line down to attach and let your surface crew haul away, or 
do what we fit at HBOI and in the North Sea. Take a lift bag down rolled into a 
PVC tube with a blow and go hose from your air banks. Hook up, back away to 
deploy the bag, inflate and run away (to get out from under the load) 
Vance

Sent from my iPhone 

On Jan 23, 2014, at 2:27 PM, "Land N Sea" <landnsea1 at hawaiiantel.net> 
wrote:

  
I am planning on fabricating my own manipulator for my K-350 that will be  hydraulic and was wondering if anybody that had experience using one on a boat  that size would be able to let me know about how much an arm would be able to  pick fully extended and if a VBT up forward was mandatory to keep the  trim. 
>I am planning on making the manipulator out of two sections, each about  2’ long giving me a 4’ reach fully extended which will get me out just past my  forward MBT.  
>I realize that the lifting capacity is based on a number of things like  the rated capacity of the rams and where they are attached to the arms so if  you know that as well that would be great. It’s freezing here on the big  Island! I woke up to a chilling 54 degrees and had to put on a sweat shirt  just to walk up to my shop.<wlEmoticon-sadsmile[1].png> 
>
>Rick  
>
>
>From: hank pronk  
>Sent: Wednesday, January 22, 2014 1:43 PM 
>To: Personal Submersibles General  Discussion  
>Subject: Re: [PSUBS-MAILIST] I am not a dork 
> 
>Alan, 
>Yes I could spring load it, It does take some effort to pull the  fingers open.  The oil has to travel through a pretty small line and all  I have here is a pail of 5/30 and that is a bit heavy.  I don't heat my  shop at night so it gets chilly by morning. 
>Hank 
>
>
>
>On Wednesday, January 22, 2014 4:34:35  PM, Alan James <alanlindsayjames at yahoo.com>  wrote:
> 
>Hank, 
>can  you mount a wedge somewhere so you can push the manipulator grippers up  against 
>it  to wedge them open? Or have a compression spring temporarily mounted across  the grippers? 
>    You could hang some plastic fish from the garage roof  to add a bit of  realism. 
>Alan 
>
> 
>
> 
>
>
>________________________________
>From: "vbra676539 at aol.com" <vbra676539 at aol.com>
>To: personal_submersibles at psubs.org 
>Sent: Thursday,  January 23, 2014 11:09 AM
>Subject: Re: [PSUBS-MAILIST] I am not a  dork
> 
>
>
>Hey, she's a banker. It's all black  or white with them. Except for the ones with mad manibubators in the shop out  back, one supposes.
>
>
> 
>-----Original  Message-----
>From: hank pronk <hanker_20032000 at yahoo.ca>
>To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
>Sent: Wed, Jan 22, 2014 4:37 pm
>Subject: Re: 
  [PSUBS-MAILIST] I am not a dork
>
>
>The only problem is, Gamma's manipulator has a power only to close  gripper.  The gripper opens with outside water pressure pushing against  it.  So I have to jump out of the sub to open the gripper each  time.  I was trying to explain this to my wife and she replied "can't you  just put it in a pail of water"  I am still laughing inside of coarse  :-) 
>Hank 
>
>
>
>On Wednesday, January 22, 2014 2:03:46  PM, Michael Holt <mholt at ohiohills.com> wrote:
> 
>On 1/22/2014 2:57 PM, Alec Smyth  wrote:
>> That is indeed a very necessary practice, but for it 
  to work properly 
>> you also have to make loud "AOUUUUUGAH" 
  klaxon sounds every so often, 
>> to indicate diving and 
  surfacing!
>You're right: you gotta have the right sounds.  
  I have a friend who used 
>to sit in the incomplete fuselage of 
  his biplane in his garage, making 
>airplane-engine noises.
>
>
>M
>
>---
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