[PSUBS-MAILIST] Fw: deep diver port frame

Tue Dec 8 23:24:34 EST 2015

Alan,Use you scuba tank for hp air in the chamber, easy as pie.  If the chamber is full of water it will take barley any air.Hank 

    On Tuesday, December 8, 2015 9:14 PM, Alan James via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Hank,good to hear it's not cold yet. We are heading in to summer.I have just recently recieved an adapter plate from China so I can fit a larger chuck onto fit the aluminum bar I am turning the motor housing out of. Have been having a lot of problemsboring out the inside & I won't be doing it this way next time. A better way may be to machine the front portionwith the recesses for the bearing & seal, & weld on a section of alluminium tube. However it is just a prototypeso I can test how the motor performs. Meanwhile I have had a pressure testing cylinder made up & are testing my led emitters.Am running it off a small waterblaster that operates at a maximum of 1500psi. The problem is thatwhen you take your finger off the trigger on a water blaster, the back pressure turns it off.I turn the water blaster on & quickly turn the valve off on the pressure cylinder to entrap thepressure before it turns off. A bit Mickey Mouse & the pressure hits maximum in seconds, so it is impossible to get any increment of pressure below 1500psi.Any suggestions on an alternative pump? I have seen hand pumps used for this.Some good news... my 80W led emitter that I had doubts about, survived 1500psi. More testing to do though.Alan

      From: Alan James via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
 Sent: Wednesday, December 9, 2015 3:37 PM
 Subject: Re: [PSUBS-MAILIST] Fw: deep diver port frame

Well done Hank,I think I need some lessons from you on motivation.Or is it that you are stuck at home all winter?Alan

   From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
 Sent: Wednesday, December 9, 2015 12:11 AM
 Subject: [PSUBS-MAILIST] Fw: deep diver port frame

Hello All,Here is my first port frame for my deep diver.  The machining has gone well up to this point-the outer edge is to hard to machine from being flame cut.  I managed to machine the front half of the edge but can't go further.  I could leave it but there is 40 lb of steel I want to get rid of-it still weighs 130lbs.  I think I will take them to a shop a couple hr away and have the outer edge cut off with a water jet. Then I can finish the edge up.  The port inside opening looks real thick but that is just a ring tacked on the inside for the lathe chuck to grab.  I am machining the conical hatch land now and it has nice soft edges so far.My home made power feed is working great even though the speed control is not working.  I control the speed by using a 6v battery instead of 24v.
Hank     On Tuesday, December 8, 2015 3:52 AM, xxx xxxxx <mp13 at live.ca> wrote:

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