Andre,
I have 2 types of rings in stock.
- Dome OD. 580 mm depth rating 200 M (for free blown dome)
- Dome OD 610 mm depth rating 400 M (pressed dome)
If you have some patience with the acrylic I can make a full assy.
http://www.nordicsub.nl/javasub-cor.html
the steel band is laser cutted and do not annoy the view
Mmm every dome hatch design should be a OD. of 610mm / 24” ergonomic size and easier to exchange..
Regards,Emile
Van: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] Namens André Eriksen
Verzonden: zaterdag 16 juni 2012 9:53
Thank you!
Makes abit more sense now. Looks like I will go with a dome without flanges and O-ring on the edge. And a steel band to hold it down.
Emile: Do you sell a full assembly?
-Andrè
2012/6/15 Alan James <alanjames@xtra.co.nz>
Hi Emile,
It looks like you have a 28mm base to the dome & have eliminated 8mm with the 4mm angled cut away
for the O ring & the additional recess for the retaining ring around the perimeter.
I thought the base contained most of the stress & you would want to retain as much of it as possible?
Are you still pressing domes?
Regards Alan
From: Emile <emile@airesearch.nl>
To: personal_submersibles@psubs.org
Sent: Saturday, 16 June 2012 9:07 AM
Subject: RE: [PSUBS-MAILIST] how to fit the acrylic dome
Not bad.
But it is also not done to machine a o-ring groove in the dome. Nemo’s first dome cracked when the water o-ring froze!
Attached my solution. Green is o-ring
Emile
Van: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] Namens André Eriksen
Verzonden: vrijdag 15 juni 2012 22:16
Aan: personal_submersibles@psubs.org
Onderwerp: Re: [PSUBS-MAILIST] how to fit the acrylic dome
From what you said I made this sketch (attached). Is this a good way to fasten the dome?
-Andrè
2012/6/15 Emile <emile@airesearch.nl>
Hi Andre,
It is not done to drill / tap any holes in a acrylic dome. Stressraiser!
For shallow divers you can glue .
Under high pressures the dome contracts more than the ring
I use a o-ring on the edge and stainless steel bands hold down the dome.
Flange also possible for shallow divers. In the handbook of acrylics are some examples.
Emile
Van: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] Namens André Eriksen
Verzonden: vrijdag 15 juni 2012 17:25
Aan: personal_submersibles@psubs.org
Onderwerp: [PSUBS-MAILIST] how to fit the acrylic dome
Hi,
I`m new to this forum, and are planning to build a 3 person sub.
I can`t seem to find any plans or pictures on how to fit the acrylic dome for the hatch. Is it screwed down on flanges with an o-ring underneath, or liquid gasket/glue? I`ve seen some domes without flanges, how do they attach them?
thank you.
-Andrè Eriksen, Norway