[PSUBS-MAILIST] (no subject)

Wed Mar 11 02:14:05 EDT 2020

I saw some corrugations in the boot, so assume it has a bellows effect!
Hope you aren't getting discouraged by the feedback Hank, but it is probably
a good lesson on how detailed you need to be to avoid confusion.
Maybe spend more time on the plug & boot stipulating that it only fits in to a certain depth to allow the boot to compress. And give more detail on the boot so that
someone doesn't buy an item that won't compress well.
When you put the last fill plug in, I would have put thread tape on it.
Also noticed at 14:22 a large air bubble move down the tube.
Cheers Alan

> On 11/03/2020, at 3:31 PM, Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> I'm a bit confused by the nomenclature as well.  It looks like you are using some hard plastic ends (delrin type material?), after all, you are machining it, tapping it, putting screws in one end and pipe plug in the other.  So those must be a rigid inflexible material.  The acrylic tube is also effectively rigid underwater when filled with oil and sealed.  The rubber coupling is providing the seal between the acrylic and the machined hard rigid plastic ends but I'm not seeing where it allows any squeezing in the sense of pressure compensation.  If the rigid plastic end caps are butt against the circumferential edge of the oil filled acrylic tube, there's nothing to compress because it's a virtual solid.
> 
> I'm pretty sure you are using the type of rubber coupling as shown in this link  https://www.fernco.com/plumbing/shielded-couplings/no-hub-couplings  
> 
> Jon
> 
> 
> 
> On Tuesday, March 10, 2020, 04:39:40 PM EDT, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> Brian, the end caps are soft rubber with a metal corrugated sleeve.  The idea is to keep the inside of the light the same pressure as the outside when at depth.  The water pressure squeezes the rubber witch in turn squeezes the oil inside the light.  I actually made a test chamber video of the light yesterday.  it will be posted soon, so then it should make sense.
> Hank
> 
> On Tuesday, March 10, 2020, 12:09:30 PM MDT, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> Hank,
>                  You referred to your end caps on your light as "bellows" ,  do they flex some how?   seems like if it is totally oil filled there would be no real movement going on.
> 
> Brian
> 
> 
> 
> --- personal_submersibles at psubs.org wrote:
> 
> From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
> To: Cliff Redus via Personal_Submersibles <personal_submersibles at psubs.org>
> Subject: Re: [PSUBS-MAILIST] (no subject)
> Date: Mon, 9 Mar 2020 22:01:47 +0000 (UTC)
> 
> Cliff, 
> Thanks'  yes I have a sounder on E3000 that is rated for 1,000 feet. I modified it as per Alan's idea sort of.  I epoxied the transducer to a heavy piece of fibreglass to add strength to the bottom of the transducer.  I took a transducer apart to see what makes them tick, there is a disk inside potted in hard rubber.  The bottom of the disk vibrates so the rubber is very thin under the disk.  The idea of the fibreglass sheet is to create a hard layer between the disk and the water.  Stay tuned on this idea.
> Hank
> 
> On Monday, March 9, 2020, 2:31:52 PM MDT, Cliff Redus via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> Nice job on LED light bar YouTube video.
> 
> OAS
> 
> Are you going to install a sounder for the E3000?  If yes,have you speced it?  If yes can you send spec?  
> 
> Best  
> 
> Cliff
> 
> On Sunday, March 8, 2020, 10:21:02 AM CDT, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> Jon. Thank you,  I don’t post where I source parts because I want people to engage by asking questions on YouTube.  Apparently that helps my channel.   If my channel goes anywhere I will start doing as you suggest. 
> Hank
> 
> Sent from my iPhone
> 
> On Mar 7, 2020, at 8:37 PM, Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> Great how-to video Hank.  Talking about how to build one is one-thing, but seeing a demo is so much better.  Can I make a suggestion, adding a parts list in the description area of your video.  I know you buy the light bar from Amazon but there are a zillion of them there, which one?  What size acrylic tube, where did you source it?
> 
> Jon
> 
> 
> On Saturday, March 7, 2020, 11:32:47 AM EST, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
>                             15:13 Now playing Watch later Watch later Add to queue Add to queue                
> 
> 	
> How To Make An Underwater Submarine LED Light Bar
> In this video I am converting an everyday LED light bar into the deep diving, oil filled, underwater light bar t...
> 
> 
> 
> _______________________________________________
> 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
> _______________________________________________
> 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...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20200311/1d66a3d5/attachment-0001.html>