[PSUBS-MAILIST] Motors filled with OIL
Alan via Personal_Submersibles
personal_submersibles at psubs.org
Wed Jan 10 15:34:44 EST 2018
Tarek,
Herve ran in to a lot of trouble when making ambient subs in Dubai.
He has a book "Escape from Dubai". Not sure what has happened to
his sub building. Last I heard he was writing novels.
I remember him telling me to have 20 litres per minute of air flowing
continually for breathing. It was a little bit difficult getting information
out of him.
Oil compensation is better at cooling the motor than air although trolling
motors are over engineered to take the heat. You put a motor in a sealed
enclosure & you make an oven! Also any water that comes in is diluted
in the oil & oil will lubricate seals etc. I asked the Fugu subs people about
their preference & they said air. http://www.fugusub.com
It is a bit of a toss up. Air is easier, oil you need some sort of compensator
or compensating bag. Ideally with both systems you have an over pressure
of about 5psi inside the thruster housing.
Cliff Redus has done a great job documenting his modification of a Minn kota
101 trolling motor on his projects page.
Doug has a bit of information on his ambient build with moon pool.
http://svseeker.com/argonaut_jr_2010.htm
Will mention that Doug had a near accident when surfacing with the moon
pool open. The sub came up fast and bounced down again compressing the air
in the hull through the moon pool. This caused the sub to be negatively buoyant
& it descended quickly. Before they had time to react they were on the bottom
but only at 20ft. Could have been fatal if they were in deeper water.
Lots of hidden traps with ambients & subs in general so please run everything
you are doing past us & we will help you if we can.
Cheers Alan ( New Zealand)
Sent from my iPad
> On 11/01/2018, at 2:14 AM, Tarek Harb via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
> Sorry Alan forget to mention that I do plan to dive out of it, so yes there
> is an Exit Hole at the bottom of the sub.
> Tarek
>
> -----Original Message-----
> From: Tarek Harb [mailto:tarek.harb at liu.edu.lb]
> Sent: Wednesday, January 10, 2018 2:20 PM
> To: 'personal_submersibles at psubs.org';
> 'personal_submersibles-request at psubs.org'
> Subject: Motors filled with OIL
>
> Alan,
> I plan to have the sub suitable for two people, Pilot + one Passenger, who
> will be sitting behind the Pilot. The initial design is inspired by the
> "Sea Shadow" stealth ship built for the United States Navy (not sure if you
> ever seen it). I can send some design pictures later if you like to see.
> Right now I am still building the Hull (welding + ), that is made out of 3
> mm steel. The Cock pit is a bit big (L=1.8 m, H, 0.9 m, and W = 0.7 m) but
> according to my calculations of C.O.G, C.O.B., and the Meta Centric Height,
> the sub should be stable and have stable equilibrium.
> Regarding the Thrusters, I think I will go with the "Air Compensation"
> method, as from what I know (I might be wrong) "Oil Compensating" not
> suitable for Brush Motors.
> If anyone ever tried that I appreciate letting me know.
>
> I know of Herve Jaubert's sub but I never read any detailed information
> about his design. Are they available anywhere?
>
> Regards
> Tarek
>
>
>
> Date: Wed, 10 Jan 2018 09:25:07 +1300
> From: Alan via Personal_Submersibles <personal_submersibles at psubs.org>
> To: Personal Submersibles General Discussion
> <personal_submersibles at psubs.org>
> Subject: Re: [PSUBS-MAILIST] Motors filled with OIL
> Message-ID: <5C53A91C-CD18-4B53-8569-000F985594A7 at yahoo.com>
> Content-Type: text/plain; charset=us-ascii
>
> Tarek,
> what size sub are you planning, 1,2 person?
> Are you intending to dive from it from out of a moon pool in the bottom?
> Any design you want to share!
> Are you familiar with Herve Jaubert's ambient submarines?
> Regards Alan
>
>
> Sent from my iPad
>
>>> On 10/01/2018, at 8:39 AM, T Novak via Personal_Submersibles
>> <personal_submersibles at psubs.org> wrote:
>>
>> Thanks, Alan. 130fsw should work just fine, that's my sub's designated
>> max depth. Your ambient is really cool.
>>
>> -----Original Message-----
>> From: Personal_Submersibles
>> [mailto:personal_submersibles-bounces at psubs.org]
>> On Behalf Of Alan via Personal_Submersibles
>> Sent: Tuesday, January 9, 2018 11:04 AM
>> To: Personal Submersibles General Discussion
>> <personal_submersibles at psubs.org>
>> Subject: Re: [PSUBS-MAILIST] Motors filled with OIL
>>
>> Tim,
>> I didn't go much more than 30ft in it. It was really a concept
>> prototype for my 1atm. I will dive it again but with my new thrusters &
> motor controllers.
>> In theory it could go as deep a diver could on air.
>> Alan
>>
>> Sent from my iPad
>>
>>>> On 10/01/2018, at 5:48 AM, T Novak via Personal_Submersibles
>>> <personal_submersibles at psubs.org> wrote:
>>>
>>> Alan,
>>> What was the max depth that you tested your ambient sub?
>>> Tim
>>>
>>> -----Original Message-----
>>> From: Personal_Submersibles
>>> [mailto:personal_submersibles-bounces at psubs.org]
>>> On Behalf Of Alan via Personal_Submersibles
>>> Sent: Tuesday, January 9, 2018 2:00 AM
>>> To: Personal Submersibles General Discussion
>>> <personal_submersibles at psubs.org>
>>> Subject: Re: [PSUBS-MAILIST] Motors filled with OIL
>>>
>>> Hi Tarek,
>>> these were brushed. There are very few inexpensive brushless trolling
>>> motors around.
>>> One or two Chinese trolling motors I know of but generally a lot more
>>> expensive.
>>> There is nothing in the way of electronics inside the brushed motors.
>>> The main thing you have got to look out for if you want to either oil
>>> or air compensate electronics is the big cylindrical electrolytic
>>> capacitors. You get these in motor controllers. What pressure they
>>> crush
>> at I am not sure.
>>> Would be a good experiment to put a bunch of various sized capacitors
>>> in a pressure test chamber. You can pot around them with resin to
>>> strengthen them.
>>> I am making my own brushless thrusters from brushless sensored
>>> outrunner motors, & oil compensating them.
>>> Alan
>>>
>>>
>>> Sent from my iPad
>>>
>>>>> On 9/01/2018, at 9:04 PM, Tarek Harb via Personal_Submersibles
>>>> <personal_submersibles at psubs.org> wrote:
>>>>
>>>> hi Alan,
>>>>
>>>> Were these Trolling Motors Brushless or not and did they have any
>>>> Electronic components inside them? Can I still Air Compensate them
>>>> if they have Electronics inside?
>>>> Thanks
>>>>
>>>> -----Original Message-----
>>>> From: Personal_Submersibles
>>>> [mailto:personal_submersibles-bounces at psubs.org]
>>>> On Behalf Of via Personal_Submersibles
>>>> Sent: Monday, January 08, 2018 9:11 PM
>>>> To: personal_submersibles at psubs.org
>>>> Subject: Personal_Submersibles Digest, Vol 55, Issue 36
>>>>
>>>> Send Personal_Submersibles mailing list submissions to
>>>> personal_submersibles at psubs.org
>>>>
>>>> To subscribe or unsubscribe via the World Wide Web, visit
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>>>> or, via email, send a message with subject or body 'help' to
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>>>>
>>>> You can reach the person managing the list at
>>>> personal_submersibles-owner at psubs.org
>>>>
>>>> When replying, please edit your Subject line so it is more specific
>>>> than
>>>> "Re: Contents of Personal_Submersibles digest..."
>>>>
>>>>
>>>> Today's Topics:
>>>>
>>>> 1. Re: At Home O2 Cleaning Process
>>>> (Brian Cox via Personal_Submersibles) 2. Re: Motors filled with
>>>> OIL (Alan via Personal_Submersibles)
>>>>
>>>>
>>>> --------------------------------------------------------------------
>>>> -
>>>> -
>>>>
>>>> Message: 1
>>>> Date: Mon, 8 Jan 2018 08:08:31 -0800
>>>> From: Brian Cox via Personal_Submersibles
>>>> <personal_submersibles at psubs.org>
>>>> To: "Personal Submersibles General Discussion"
>>>> <personal_submersibles at psubs.org>
>>>> Subject: Re: [PSUBS-MAILIST] At Home O2 Cleaning Process
>>>> Message-ID: <20180108080831.C8ACDB98 at m0117164.ppops.net>
>>>> Content-Type: text/plain; charset="us-ascii"
>>>>
>>>> An HTML attachment was scrubbed...
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>>>>
>>>> ------------------------------
>>>>
>>>> Message: 2
>>>> Date: Tue, 9 Jan 2018 08:11:11 +1300
>>>> From: Alan via Personal_Submersibles
>>>> <personal_submersibles at psubs.org>
>>>> To: Personal Submersibles General Discussion
>>>> <personal_submersibles at psubs.org>
>>>> Subject: Re: [PSUBS-MAILIST] Motors filled with OIL
>>>> Message-ID: <1F7583C5-3CE9-4096-9981-4636046DEAB6 at yahoo.com>
>>>> Content-Type: text/plain; charset=us-ascii
>>>>
>>>> Tarek,
>>>> I built a very small dry ambient submarine using inexpensive Chinese
>>>> electric trolling motors. I air compensated the motors & hull using
>>>> slightly modified octopus regulators.
>>>> The motors for my next submersible will be oil compensated.
>>>> My project is under ambient & Alan James on the psub projects page.
>>>> Let me know if you need any more help.
>>>> Regards Alan
>>>>
>>>> Sent from my iPad
>>>>
>>>>>> On 8/01/2018, at 11:53 PM, Tarek Harb via Personal_Submersibles
>>>>> <personal_submersibles at psubs.org> wrote:
>>>>>
>>>>> Hi guys,
>>>>> I am building a Dry Ambient Submarine and I been having trouble
>>>>> finding a suitable Motors for it, as I don't want to spend 1000s of
>>>>> $ on
>>>> each motor.
>>>>> I am sure that the topic has been brought up many times before, but
>>>>> I would like to enquire about the best Trolling Motor that can be
>>>>> filled with OIL in order to withstand 40 meters Depth of Water.
>>>>>
>>>>>
>>>>>
>>>>> Appreciate any help in this matter.
>>>>>
>>>>> Tarek
>>>>>
>>>>> -----Original Message-----
>>>>> From: Personal_Submersibles
>>>>> [mailto:personal_submersibles-bounces at psubs.org]
>>>>> On Behalf Of via Personal_Submersibles
>>>>> Sent: Friday, November 03, 2017 3:28 AM
>>>>> To: personal_submersibles at psubs.org
>>>>> Subject: Personal_Submersibles Digest, Vol 53, Issue 1
>>>>>
>>>>> Send Personal_Submersibles mailing list submissions to
>>>>> personal_submersibles at psubs.org
>>>>>
>>>>> To subscribe or unsubscribe via the World Wide Web, visit
>>>>> http://www.whoweb.com/mailman/listinfo.cgi/personal_submersibles
>>>>> or, via email, send a message with subject or body 'help' to
>>>>> personal_submersibles-request at psubs.org
>>>>>
>>>>> You can reach the person managing the list at
>>>>> personal_submersibles-owner at psubs.org
>>>>>
>>>>> When replying, please edit your Subject line so it is more specific
>>>>> than
>>>>> "Re: Contents of Personal_Submersibles digest..."
>>>>>
>>>>>
>>>>> Today's Topics:
>>>>>
>>>>> 1. Re: batteries (James Frankland via Personal_Submersibles) 2.
>>>>> new gears (hank pronk via Personal_Submersibles) 3. Re: new gears
>>>>> (irox via Personal_Submersibles) 4. Re: new gears (Alan via
>>>>> Personal_Submersibles) 5. Re: new gears (hank pronk via
>>>>> Personal_Submersibles)
>>>>>
>>>>>
>>>>> -------------------------------------------------------------------
>>>>> -
>>>>> -
>>>>> -
>>>>>
>>>>> Message: 1
>>>>> Date: Wed, 1 Nov 2017 18:34:36 +0000
>>>>> From: James Frankland via Personal_Submersibles
>>>>> <personal_submersibles at psubs.org>
>>>>> To: Personal Submersibles General Discussion
>>>>> <personal_submersibles at psubs.org>
>>>>> Subject: Re: [PSUBS-MAILIST] batteries
>>>>> Message-ID:
>>>>>
>>>>> <CAHpB=UBfz5SrdACR_AWW7JXBOzMMwH-axLH4Z38oqNCQiOmBJw at mail.gmail.com
>>>>> Content-Type: text/plain; charset="UTF-8"
>>>>>
>>>>> Hi Rick,
>>>>>
>>>>> Yes, the standard Min kota controller has reverse. Its just a
>>>>> potentiometer on a knob.
>>>>>
>>>>> I went for 24v min kota rip tide 80's. Wish I had gone for the
>>>>> 101's to be honest.
>>>>>
>>>>> I have the aft thruster rigged with the controller at the side of
>>>>> the seat, so I set the power and trundle off. I tend to use the
>>>>> aft thruster for surface driving or slow seabed cruising, so its ok
>>>>> where it is. Then I use the side thrusters while submerged for
>> manouvering.
>>>>>
>>>>> Works ok for me.
>>>>>
>>>>> The pots on the controllers are on a ribbon cable. I didn't dare
>>>>> cut them to extend to anything more useful, although I suspect it
>>>>> would
>> work.
>>>>>
>>>>> To be honest, that's why I changed the side thrusters to simple
>>>>> on\off relays. The pots were to complicated to move.
>>>>>
>>>>> Got a couple of links here on my site.
>>>>> regards
>>>>> James
>>>>>
>>>>> This was how I had it originally. Was awkward to use side thrusters.
>>>>>
>>>>> http://www.guernseysubmarine.com/Extended_files/Page19613.htm
>>>>>
>>>>> Main power panel.
>>>>>
>>>>> http://www.guernseysubmarine.com/Extended_files/Page19348.htm
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On 31/10/2017, Rick Patton via Personal_Submersibles
>>>>> <personal_submersibles at psubs.org> wrote:
>>>>>> James,
>>>>>>
>>>>>> I didn't realize that the Minn-Kota controllers had a reverse setting?
>>>>>> Rick
>>>>>>
>>>>>> On Tue, Oct 31, 2017 at 3:39 AM, James Frankland via
>>>>>> Personal_Submersibles < personal_submersibles at psubs.org> wrote:
>>>>>>
>>>>>>> I have continuous duty ones at a suitable current rating. Cant
>>>>>>> remember off hand. But I don't have the reversing because I can
>>>>>>> rotate the side motors for reverse. So I just have 1 relay per
> motor.
>>>>>>> Super simple.
>>>>>>>
>>>>>>> Also have the standard minn kota controller on the rear thruster.
>>>>>>> which allows reverse and speed control. All 3 items all fit into
>>>>>>> one box with a cooling fan for good measure.
>>>>>>>
>>>>>>> Sorry, cant recommend anything other than the simple setup I have.
>>>>>>>
>>>>>>>
>>>>>>> On 31 October 2017 at 11:55, hank pronk via Personal_Submersibles
>>>>>>> <personal_submersibles at psubs.org> wrote:
>>>>>>>> Hi James,
>>>>>>>> I am using continues duty relays and it takes 4 relays per motor.
>>>>>>>> On my vertical thrusters I am using reversing relays (single
>>>>>>>> relay) but they
>>>>>>> are
>>>>>>>> not continues duty, witch is okay. I want to simplify by using
>>>>>>>> reversing relays (continuous duty) on the main motors. I
>>>>>>>> thought maybe you already have that and could recommend what works.
>>>>>>>> Hank
>>>>>>>>
>>>>>>>> On Tuesday, October 31, 2017, 5:14:50 AM MDT, James Frankland
>>>>>>>> via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>> Hi Hank,
>>>>>>>>
>>>>>>>> I cant remember off the top of my head now. I just had a quick
>>>>>>>> search and I cant find them. They are just standard high
>>>>>>>> current 24v pots of some sort.
>>>>>>>>
>>>>>>>> I seem to remember they were similar to yours. Or some that you
>>>>>>>> had
>>>>>>> used.
>>>>>>>>
>>>>>>>> James
>>>>>>>>
>>>>>>>> On 31 October 2017 at 10:25, hank pronk via
>>>>>>>> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>>>>>>>> Hi James,
>>>>>>>>> What type of relays are you using?
>>>>>>>>> Hank
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Tuesday, October 31, 2017, 3:10:27 AM MDT, James Frankland
>>>>>>>>> via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Hi rick,
>>>>>>>>> I'm here. What do you want to know? I'm using minn Kota rip
>>>>>>>>> tide 80's
>>>>>>> at
>>>>>>>>> 24v. 2x banks of 4 agm's. These are wired in 2 pairs of
>>>>>>>>> batteries in series with both pairs connected to the main
>>>>>>>>> terminals. I have a standard
>>>>>>> heavy
>>>>>>>>> switch so I can use each bank separately or both together. I
>>>>>>>>> used heavy tinned marine cable. Can't remember the thickness.
>>>>>>>>>
>>>>>>>>> I find my motors a little underpowered, but other than that it
>>>>>>>>> seems
>>>>>>> fine.
>>>>>>>>>
>>>>>>>>> Aft thruster has the minn Kota controller, I originally had
>>>>>>>>> those on the sides but found it a pain, so I changed those to
>>>>>>>>> have just on/off
>>>>>>> relays.
>>>>>>>>> Much better.
>>>>>>>>>
>>>>>>>>> Regards,
>>>>>>>>> James
>>>>>>>>>
>>>>>>>>> On Monday, 30 October 2017, Rick Patton via
>>>>>>>>> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>>>>>>>>
>>>>>>>>> Alan
>>>>>>>>> Yes there are 2 separate pods each containing 4 each 12v
>>>>>>>>> batteries , 3
>>>>>>> for
>>>>>>>>> the 36v for thrusters & 1 for the onboard systems.
>>>>>>>>> DAN H built his per plans and specs and is running his stern
>>>>>>>>> thruster
>>>>>>> off
>>>>>>>>> one side & and sides off the other side but he is not running
>>>>>>> Minn-Kotas.
>>>>>>>>> I am hopping James Franklin will chime in as he is using the
>>>>>>>>> Minn-Kotas
>>>>>>> in
>>>>>>>>> his.
>>>>>>>>> Rick
>>>>>>>>>
>>>>>>>>> On Sun, Oct 29, 2017 at 8:13 PM Alan via Personal_Submersibles
>>>>>>>>> <personal_submersibles at psubs. org> wrote:
>>>>>>>>>
>>>>>>>>> Rick,
>>>>>>>>> I am not familiar with the k350 battery set up, but are there
>>>>>>>>> two battery pods with 3 x 12V batteries in each pod?
>>>>>>>>> What are the other k350 owners doing? Do they run the 3
>>>>>>>>> thrusters off the 2 battery pods similtaneously i.e. connect
>>>>>>>>> both pods in
>>>>>>> parallel.
>>>>>>>>> If you did this then you would only be drawing half the amps
>>>>>>>>> off each battery pod, than you would be if you were using one.
>>>>>>>>> I wonder what traction batteries mobility scooters use?
>>>>>>>>> Cheers Alan
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Sent from my iPad
>>>>>>>>>
>>>>>>>>>> On 29/10/2017, at 9:27 AM, Rick Patton via
>>>>>>>>>> Personal_Submersibles <personal_submersibles at psubs. org> wrote:
>>>>>>>>>>
>>>>>>>>>> I am trying to size my wire for the 36v side from where the
>>>>>>>>>> power comes into the sub to selector switch to hot buss bar
>>>>>>>>>> and was wondering if
>>>>>>> that
>>>>>>>>>> was something that someone could answer. Also I was told by
>>>>>>>>>> Minn-Kota that they recommend group 27 marine batteries.
>>>>>>>>>> I have a couple of deep cycle (marine batteries) on my boat
>>>>>>>>>> and they
>>>>>>> are
>>>>>>>>>> 550 cca and 125 amps reserve capacity.
>>>>>>>>>> My plan is to run all three Minn-kota thrusters off of one
>>>>>>>>>> side at a
>>>>>>> time
>>>>>>>>>> and their max draw is 46 amps max so there is 138 amps if all
>>>>>>>>>> three thrusters are wide open. I doubt I would ever have all
>>>>>>>>>> three maxed for more than short spurts but want to be repaired
>>>>>>>>>> for the worst case scenario like if I am bucking a strong
>>>>>>>>>> current.
>>>>>>>>>> I also will be running 6 outside LED lights off the same bank
>>>>>>>>>> and
>>>>>>> though
>>>>>>>>>> I
>>>>>>>>>> can dim them and selectively use them, all on at max would be
>>>>>>>>>> about a
>>>>>>>>>> 16.6
>>>>>>>>>> amp draw as well. Now most of the time I will be using the
>>>>>>>>>> thrusters at minimal draw and not all 3 at the same time and
>>>>>>>>>> the
>>>>>>>>>> 6 lights will probably never all be on at the same time.
>>>>>>>>>> If everything was wide open, I would be pulling about 155 amps
>>>>>>>>>> from a bank that has a reserve capacity of 125 so it would
>>>>>>>>>> deplete the bank rather fast and may even damage the batteries
>>>>>>>>>> due to a quick drain? So,,, first question...would 2 OTT wire
>>>>>>>>>> be sufficient from battery source to bus
>>>>>>> bar
>>>>>>>>>> as
>>>>>>>>>> long as I am not running full tilt on everythig and second...
>>>>>>>>>> since I have to stick with a lead acid system due to design,
>>>>>>>>>> can I get a group 27 battery that can deliver much more than
>>>>>>>>>> the 125 amps I have on my boat?
>>>>>>>>>> I also have the option of putting the battery selector switch
>>>>>>>>>> on both banks if I have to but would rather deplete one bank
>>>>>>>>>> at a time if can.
>>>>>>>>>> Comments appreciated.
>>>>>>>>>> Rick
>>>>>>>>>> ______________________________ _________________
>>>>>>>>>> Personal_Submersibles mailing list Personal_Submersibles at psubs.
>>>>>>>>>> org http://www.psubs.org/mailman/ listinfo.cgi/personal_
>>>>>>>>>> submersibles
>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> ______________________________ _________________
>>>>>>>>> Personal_Submersibles mailing list Personal_Submersibles at psubs.
>>>>>>>>> org http://www.psubs.org/mailman/ listinfo.cgi/personal_
>>>>>>>>> submersibles
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Personal_Submersibles mailing list
>>>>>>>>> Personal_Submersibles at psubs.org
>>>>>>>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Personal_Submersibles mailing list
>>>>>>>>> Personal_Submersibles at psubs.org
>>>>>>>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>>>>>>> _______________________________________________
>>>>>>>> Personal_Submersibles mailing list
>>>>>>>> Personal_Submersibles at psubs.org
>>>>>>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> Personal_Submersibles mailing list
>>>>>>>> Personal_Submersibles at psubs.org
>>>>>>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>>>>>> _______________________________________________
>>>>>>> Personal_Submersibles mailing list
>>>>>>> Personal_Submersibles at psubs.org
>>>>>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>>>>
>>>>>
>>>>> ------------------------------
>>>>>
>>>>> Message: 2
>>>>> Date: Thu, 2 Nov 2017 18:30:48 +0000 (UTC)
>>>>> From: hank pronk via Personal_Submersibles
>>>>> <personal_submersibles at psubs.org>
>>>>> To: Personal Submersibles General Discussion
>>>>> <personal_submersibles at psubs.org>
>>>>> Subject: [PSUBS-MAILIST] new gears
>>>>> Message-ID: <110503463.1580898.1509647448063 at mail.yahoo.com>
>>>>> Content-Type: text/plain; charset="utf-8"
>>>>>
>>>>> Hi Ian,The gears you made for me arrived, and they are amazing! ?I
>>>>> had no idea the fine detail capability. ?The timing is perfect
>>>>> also, as I have just finished the gripper and need the wrist gears
>>>>> to complete the connection. ?I might have it put together today for
>>>>> a test.Thank you againHank
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>>>>> ------------------------------
>>>>>
>>>>> Message: 3
>>>>> Date: Thu, 2 Nov 2017 12:06:16 -0700 (GMT-07:00)
>>>>> From: irox via Personal_Submersibles
>>>>> <personal_submersibles at psubs.org>
>>>>> To: Personal Submersibles General Discussion
>>>>> <personal_submersibles at psubs.org>
>>>>> Subject: Re: [PSUBS-MAILIST] new gears
>>>>> Message-ID:
>>>>> <220196530.10316.1509649576216 at wamui-mouse.atl.sa.earthlink.net>
>>>>> Content-Type: text/plain; charset="us-ascii"
>>>>>
>>>>> An HTML attachment was scrubbed...
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>>>>>
>>>>> ------------------------------
>>>>>
>>>>> Message: 4
>>>>> Date: Fri, 3 Nov 2017 08:26:09 +1300
>>>>> From: Alan via Personal_Submersibles
>>>>> <personal_submersibles at psubs.org>
>>>>> To: Personal Submersibles General Discussion
>>>>> <personal_submersibles at psubs.org>
>>>>> Subject: Re: [PSUBS-MAILIST] new gears
>>>>> Message-ID: <845E2172-3DE9-4641-A154-5C76DAB1C3A5 at yahoo.com>
>>>>> Content-Type: text/plain; charset="us-ascii"
>>>>>
>>>>> Well done Ian.
>>>>> I have posted this before. It is of 3d propeller testing done here
>>>>> in Auckland.
>>>>> Their preference in the end was polycarbonate!
>>>>>
>>>>> http://www.3ders.org/articles/20160302-wooden-3d-printed-boat-prop-
>>>>> ma k ers-pu t-filaments-to-the-test-with-surprising-results.html
>>>>> Cheers Alan
>>>>> Sent from my iPad
>>>>>
>>>>>>> On 3/11/2017, at 8:06 AM, irox via Personal_Submersibles
>>>>>> <personal_submersibles at psubs.org> wrote:
>>>>>>
>>>>>>
>>>>>> Great! Glad they got there safely.
>>>>>>
>>>>>> Let me know if they work. If so I'll print up a slightly higher
>>>>>> quality
>>>>> set (probably a couple, for spares and destructive testing). I'll
>>>>> also look into printing a set in nylon.
>>>>>>
>>>>>> You're most welcome. Thanks for all the videos.
>>>>>>
>>>>>> Cheers!
>>>>>> Ian.
>>>>>> -----Original Message-----
>>>>>> From: hank pronk via Personal_Submersibles
>>>>>> Sent: Nov 2, 2017 11:30 AM
>>>>>> To: Personal Submersibles General Discussion
>>>>>> Subject: [PSUBS-MAILIST] new gears
>>>>>>
>>>>>> Hi Ian,
>>>>>> The gears you made for me arrived, and they are amazing! I had no
>>>>>> idea
>>>>> the fine detail capability. The timing is perfect also, as I have
>>>>> just finished the gripper and need the wrist gears to complete the
>>>>> connection. I might have it put together today for a test.
>>>>>> Thank you again
>>>>>> Hank
>>>>>> _______________________________________________
>>>>>> Personal_Submersibles mailing list Personal_Submersibles at psubs.org
>>>>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>>>> -------------- next part -------------- An HTML attachment was
>>>>> scrubbed...
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>>>>>
>>>>> ------------------------------
>>>>>
>>>>> Message: 5
>>>>> Date: Fri, 3 Nov 2017 01:27:47 +0000 (UTC)
>>>>> From: hank pronk via Personal_Submersibles
>>>>> <personal_submersibles at psubs.org>
>>>>> To: irox via Personal_Submersibles
>>>>> <personal_submersibles at psubs.org>
>>>>> Subject: Re: [PSUBS-MAILIST] new gears
>>>>> Message-ID: <1390402376.1802262.1509672467596 at mail.yahoo.com>
>>>>> Content-Type: text/plain; charset="utf-8"
>>>>>
>>>>> Ian,The gears seem pretty tough, and I am sure they will stand up
>>>>> due ?to the thickness. ?They machine nicely also, I was worried
>>>>> when I put the gear in the lathe chuck, but is was fine. ?I
>>>>> machined the bore out so it would slide nicely. ?Pitty I don't have
>>>>> the wrist drive motor yet
>>>> ;-( ?Hank
>>>>> On Thursday, November 2, 2017, 1:06:29 PM MDT, irox via
>>>>> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>>>>
>>>>> #yiv3031387229 #yiv3031387229 -- DIV {margin:0px;}#yiv3031387229
> Great!?
>>>>> Glad they got there safely.
>>>>>
>>>>> Let me know if they work.? If so I'll print up a slightly higher
>>>>> quality set (probably a couple, for spares and destructive testing).?
>>>>> I'll also look into printing a set in nylon.
>>>>>
>>>>> You're most welcome.? Thanks for all the videos.
>>>>>
>>>>> Cheers!
>>>>> ?Ian.
>>>>>
>>>>> -----Original Message-----
>>>>> From: hank pronk via Personal_Submersibles
>>>>> Sent: Nov 2, 2017 11:30 AM
>>>>> To: Personal Submersibles General Discussion
>>>>> Subject: [PSUBS-MAILIST] new gears
>>>>>
>>>>> Hi Ian,The gears you made for me arrived, and they are amazing! ?I
>>>>> had no idea the fine detail capability. ?The timing is perfect
>>>>> also, as I have just finished the gripper and need the wrist gears
>>>>> to complete the connection. ?I might have it put together today for
>>>>> a test.Thank you againHank
>>>>> _______________________________________________
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>>>>
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>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 9 Jan 2018 14:49:02 -1000
> From: Rick Patton via Personal_Submersibles
> <personal_submersibles at psubs.org>
> To: Personal Submersibles General Discussion
> <personal_submersibles at psubs.org>
> Subject: Re: [PSUBS-MAILIST] At Home O2 Cleaning Process
> Message-ID:
> <CAODkcU8CH13m08=WWQ0m1=iwoaqFvOxxn+SCcOB0TQ1AOzWhdg at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Can't get into my contacts page to send a new thread rite now (I hate
> computers) so gonna tag this thread for something different, sorry...
>
> I am getting ready to purchase my amp and volt meters for the 12V and 36V
> banks and had a few questions. There are two ways that I know of to tap into
> a line to measure current. One is a direct splice and the other is using a
> meter that has a DROK/necklace that encircles the wire you want to measure.
> Would like to know the best way to go on those types. It would be a lot
> easier to use a necklace type to minimize the amount of splices that I have
> to make and moisture proof but a friend of mine said that there is a minute
> difference in readings if the wire is up against the side of the necklace
> rather than in the middle and I also wounder if having the necklace up
> against the steel hull would mess with the readings? I also assume that I
> should have a separate amp meter for each of my three thrusters?
> Thanks
> Rick
>
> On Mon, Jan 8, 2018 at 6:08 AM, Brian Cox via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> Cliff, I ordered those items ! I'm going to get another style flow
>> meter as well . How accurate is that acrylic flow meter?
>>
>> Brian
>>
>>
>>
>> --- personal_submersibles at psubs.org wrote:
>>
>> From: Cliff Redus via Personal_Submersibles <personal_submersibles at psubs.
>> org>
>> To: Personal Submersibles General Discussion <personal_submersibles at psubs.
>> org>
>> Subject: Re: [PSUBS-MAILIST] At Home O2 Cleaning Process
>> Date: Sun, 7 Jan 2018 14:21:18 -0600
>>
>> Brian, in my (Air Monitoring, Oxygen Control) AMOC system, I use a
>> Porter 201-FSVP mass controller. Ebay has these units for sell all
>> the time at pennies on the dollar. These unit will both measure the
>> mass rate of the gas in SLPM and also control it. There are two 0-5VDC
>> control signals for the unit. For this partuclar unit which has a
>> 0-10 SLPM span, if you give the controller pin 5V, then it will pass
>> 10 SLPM if you give it 0V, it will pass zero SLPM. The other singal
>> is an analog voltage output signal again 5Vdc for full span, would be
>> a measured 10 SLPM and a zero signal means it is reading zero mass
>> flowrate of gas. https://www.ebay.com/itm/
>> Porter-201-AFASVPAA-Mass-Flow-Controller-10-SLPM-760-Torr-
>> MFC/232159305887?hash=item360dc5e09f:g:BTAAAOSwmrlUrcG1 is a link to
>> ebay for a unit very close to this. Porter (Parker) make a ton of
>> different controller for different rates and different gasses. The
>> controller as a 9 pin blade style connector that is used widely in the
>> medical industry. The documentation on these meters is excellent and
>> you can download it
>> https://www.parker.com/literature/MFM%20&%20MFC%20(D-
>> Conn.)%20(FM-898%20Rev.%20E).pdf . The manual calls out the spec for
>> the connector. I use this unit with a PLC but single it is analog
>> voltage signals, you could control with potentiometer off a 5VDC
>> source. Likewise you could use an analog display that would take a
>> 0-5VDC signal if you wanted. I have found these units to be very
>> reliable. In my Life support system module, I use a Swagelok a
>> Vernier needle valve model SS-SS4-VH as a bypass around this
>> controller for manual O2 bleed control. As a backup, I use a variable
>> area meter like https://www.amazon.com/dp/
>> B019YS4PSG/ref=asc_df_B019YS4PSG5328541/?tag=hyprod-20&creative=395033
>> &
>> creativeASIN=B019YS4PSG&linkCode=df0&hvadid=198097951144&hvpos=1o1&hvn
>> etw= g&hvrand=6957636125906653374&hvpone=&hvptwo=&hvqmt=&hvdev=
>> c&hvdvcmdl=&hvlocint=&hvlocphy=9027968&hvtargid=pla-542207540152 .
>>
>> Cliff
>>
>> On Sat, Jan 6, 2018 at 1:56 PM, Brian Cox via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>> I just talked to my local dive shop and they will fill O2 no questions
>> asked . They say they do it all the time. I'm thinking of getting
>> set up with a package from DAN Here:
>>
>>
>> https://www.diversalertnetwork.org/dive-store/?catno=9
>>
>>
>> It seems to be somewhat problematic getting the right all the
>> components but getting one of these units from the DAN website might
>> make things easier as far as getting bottles filled and so forth. The
>> delivery system on these units I don't think has enough fine tuning
>> ability however. Does anyone have a good flow meter to recommend? Is
>> there an analog type with a little ball that floats up and down?
>>
>>
>>
>> Brian
>>
>>
>>
>> --- personal_submersibles at psubs.org wrote:
>>
>> From: "Sean T. Stevenson via Personal_Submersibles" <
>> personal_submersibles at psubs.org>
>> To: personal_submersibles at psubs.org
>> Subject: Re: [PSUBS-MAILIST] At Home O2 Cleaning Process
>> Date: Sat, 06 Jan 2018 13:58:20 -0500
>>
>> I use dilute acetic acid to remove any existing corrosion, and then a
>> non-solvent hydrocarbon-free detergent solution to clean, followed by
>> a freshwater rinse, and possibly another cycle using a separate clean
>> batch of detergent solution. Use dedicated brushes for each bin. A
>> lint-free cloth should come back clean, and the cleaner solution and
>> rinse water should both produce no fluorescence under UV (black
>> light). Dry passively, or with filtered air or bottled nitrogen so as
>> not to reintroduce any contaminants. Any subsequent lubrication or
>> assembly with lubricated soft parts should be done with oxygen compatible
> lubricants (i.e. Christolube).
>>
>> Sean
>>
>> Sent from ProtonMail mobile
>>
>>
>>
>> -------- Original Message --------
>> On Jan 6, 2018, 09:23, Steve McQueen via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>>
>> All, I am working on cleaning some parts/pieces for O2 service on my
>> K-250. I am buying most items ?pre-cleaned? such as: Tank w/Valve,
>> First Stage Regulator, Thru Hull Isolation Valve, Flow Regulator.
>>
>> However, I will have some parts & pieces (mainly misc. adaptors and ?
>> SS
>> tubing) I may still need to clean.
>>
>> I know an ?at home? process will fall short but looking to
>> create/document a procedure anyway.
>>
>> ? I am using ASTM G93, "Standard Practice for Cleaning Methods and
>> Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched
>> Environments" as the standard.
>>
>> ?
>>
>> ? Maybe someone already has a procedure (or opinion) they want to
>> share?
>>
>> Steve
>>
>>
>>
>> ?
>>
>>
>> ? I am using ASTM G93, "Standard Practice for Cleaning Methods and
>> Cleanliness Levels for Material and Equipment Used in Oxygen-Enriched
>> Environments" as the standard. I know an ?at home? process will fall
>> short but looking to create/document a procedure anyway.
>>
>> ?
>>
>> _______________________________________________ Personal_Submersibles
>> mailing list Personal_Submersibles at psubs.org
>> <http:///eonapps/ft/wm/page/compose?send_to=Personal_Submersibles%40ps
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>>
>>
>> _______________________________________________ Personal_Submersibles
>> mailing list Personal_Submersibles at psubs.org
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>> ubs.org>
>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
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>>
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