[PSUBS-MAILIST] patience pays

[Alan via Personal_Submersibles]

Thanks Hank,
I was apposed to solenoid valves for ballast tanks because of the way the internals
were corroding on mine, then after our discussion about them, I came up with a good
design based on an assembly drawing for a pneumatically operated top hat valve, that
Vance gave the group in Florida. I am considering having 2 valves on each ballast tank,
top & bottom. I would just run a wire from the coil on one valve to the coil on the next
to operate them simultaneously with one through hull. It is a matter of getting the
right thickness of wire & number of turns, to get enough magnetism to pull the valve
plungers open.
Alan


Sent from my iPad

> On 22/07/2016, at 12:03 am, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Alan,
> Don't you just hate that!  
> I have to back pedal a bit about solenoid valves also.   They do work fantastic, no doubt about it, but you threw a little scare into me that stuck with me.  You mentioned putting a filter in to protect the seat.  You have a very good point there, those valves could easily get obstructed by debris.  On my last dive I noticed how much crap gets blown around them.  I am actually planning to replace them with ball valves.
> Good luck with the motor
> Hank
> 
> 
> On Thursday, July 21, 2016 1:45 AM, Alan James via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> Thanks for the update Hank,
> look forward to any videos you take.
> I have had to be a bit patient also. I burnt the motor out on my lathe
> about 2 Months ago possibly due to it's fan spinning loose & it overheating.
> They told me a replacement motor was coming in 1 week. 6 weeks later it turned up.
> There were 2 tabs across the terminals that weren't on the original motor.
> I queried this with the agent, who contacted China for an answer.
> Leave them on & wire up the same. So I did & "bang" tripped the circuit breaker on the
> lathe as well as on the house. Now after further communication to China I get "No, take
> the tabs off & it will be OK".  I am not confident come tomorrow I will have a working lathe.
> So brushless motor housing, light housing & solenoid operated ballast valve projects
> have been on hold.
> Cheers Alan
> 
> 
> From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
> To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
> Sent: Thursday, July 21, 2016 8:22 AM
> Subject: [PSUBS-MAILIST] patience pays
> 
> After three days of sanding buffing and polishing the conical seat, I have the port fitted.  The window frame warped a wee bit from welding even though it is 3 inches thick.  I had the port bedded with approximately .020 in of high compression resin, but was not comfortable with that.   Now the port sits on the steel seat directly.  My port is .125 inches to thick so I will machine that off as soon as I have the hatch out of the lathe.
> 
> I have the hatch in the lathe to machine a temporary attachment that will hold the hatch true on the land while it rotates with lapping compound between the land and hatch.  I will rotate the hatch with a hydraulic flange facing machine.  
> 
> I have postponed my deep test of Gamma so that i can test Elementary 3,000 occupant sphere to 980 feet  at the same time as testing Gamma.  It is a big effort to get my barge to the lake for testing, so I can test  both subs with one barge move.  The barge is on the trailer ready to go and Gamma is also on her trailer ready to go.  
> Hank
> 
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