[bolger] Re: Re Lexan mounting
>Craig,Outside - I don't think a BW would work with inside mounting though someone
>
>Does Phil Bolger indicate inside or outside placement of the lexan?
>My sense is that inside finishes off nicer...and I'd personally like
>to do it on my Chebacco, but...outside holds better in worst
>conditions. In other words it is (inside placement) blow out the
>lexan window with wall of water (force reacts against x # of panhead
>screws-bolts/washers) or (outside placement) flex or fracture of
>lexan as response to wall of water. Other thoughts?
>
>Dick B
motivated could redesign the framing to allow trim pieces outside. These
would spread the screw load better.
Proa MBULI used outside mounting and it worked fine.
Jochems is probably a better example of his current thinking. I haven't
seen large BW II plans so I can't say if the upgrade has a different system.
--
Craig O'Donnell
Sinepuxent Ancestors & Boats
<http://freepages.genealogy.rootsweb.com/~fassitt/>
The Proa FAQ <http://boat-links.com/proafaq.html>
The Cheap Pages <http://www.friend.ly.net/~dadadata/>
Sailing Canoes, Polytarp Sails, Bamboo, Chinese Junks,
American Proas, the Bolger Boat Honor Roll,
Plywood Boats, Bamboo Rafts, &c.
_________________________________
-- Professor of Boatology -- Junkomologist
-- Macintosh kinda guy
Friend of Wanda the Wonder Cat, 1991-1997.
_________________________________
> >What window mounting detail does BolgerThere is an interesting discussion of window installation and
> >show for Birdwatcher, and for other of his
> >Lexan windowed boats?
>
> None.
replacement here:
http://www.s291.com/public_html/history-referral.htm
Look about 60% of the way down the page under the heading
Cabin side Windows for S2 Sailboats.
Not so different from the Bolger method (or lack of method).
Peter
Craig,
Does Phil Bolger indicate inside or outside placement of the lexan?
My sense is that inside finishes off nicer...and I'd personally like
to do it on my Chebacco, but...outside holds better in worst
conditions. In other words it is (inside placement) blow out the
lexan window with wall of water (force reacts against x # of panhead
screws-bolts/washers) or (outside placement) flex or fracture of
lexan as response to wall of water. Other thoughts?
Dick B
Does Phil Bolger indicate inside or outside placement of the lexan?
My sense is that inside finishes off nicer...and I'd personally like
to do it on my Chebacco, but...outside holds better in worst
conditions. In other words it is (inside placement) blow out the
lexan window with wall of water (force reacts against x # of panhead
screws-bolts/washers) or (outside placement) flex or fracture of
lexan as response to wall of water. Other thoughts?
Dick B
--- Inbolger@yahoogroups.com, craig o'donnell <dadadata@f...> wrote:
> >What window mounting detail does Bolger
> >show for Birdwatcher, and for other of his
> >Lexan windowed boats?
>
> None. Drill holes, smush sealant. Without digging out the building
plan key
> I think he recommends pan head screws with slightly oversize holes.
>
> The BW windows are flush against what amounts to 1x1 frame pieces
which are
> also the supports for the "deck" lexan and plywood deck pieces
amidships,
> and a slightly thinner backing piece at the bottom.
> --
> Craig O'Donnell
> Sinepuxent Ancestors & Boats
> <http://freepages.genealogy.rootsweb.com/~fassitt/>
> The Proa FAQ <http://boat-links.com/proafaq.html>
> The Cheap Pages <http://www.friend.ly.net/~dadadata/>
> Sailing Canoes, Polytarp Sails, Bamboo, Chinese
Junks,
> American Proas, the Bolger Boat Honor Roll,
> Plywood Boats, Bamboo Rafts, &c.
> _________________________________
>
> -- Professor of Boatology -- Junkomologist
> -- Macintosh kinda guy
> Friend of Wanda the Wonder Cat, 1991-1997.
> _________________________________
>What window mounting detail does BolgerNone. Drill holes, smush sealant. Without digging out the building plan key
>show for Birdwatcher, and for other of his
>Lexan windowed boats?
I think he recommends pan head screws with slightly oversize holes.
The BW windows are flush against what amounts to 1x1 frame pieces which are
also the supports for the "deck" lexan and plywood deck pieces amidships,
and a slightly thinner backing piece at the bottom.
--
Craig O'Donnell
Sinepuxent Ancestors & Boats
<http://freepages.genealogy.rootsweb.com/~fassitt/>
The Proa FAQ <http://boat-links.com/proafaq.html>
The Cheap Pages <http://www.friend.ly.net/~dadadata/>
Sailing Canoes, Polytarp Sails, Bamboo, Chinese Junks,
American Proas, the Bolger Boat Honor Roll,
Plywood Boats, Bamboo Rafts, &c.
_________________________________
-- Professor of Boatology -- Junkomologist
-- Macintosh kinda guy
Friend of Wanda the Wonder Cat, 1991-1997.
_________________________________
> If you overtighten a "bugle head" or countersunkFair enough. I also agree with you that pan head
> screw on Lexan you will crack it.
> Trust me on this one.
> Craig O'Donnell
screws in slightly over sized holes are a good idea.
Further, I agree that one should not over tighten
the screws. They should be loose enough to not
squeeze out the bead of sealant.
The Bolger window design details about the
connection of the Lexan, are missing for Micro
Navigator, (at least). I was just looking at the
drawings for Retriever, which shows a window
connection detail, 1/4" material it seems,
probably Lexan, flush mounted to the inside
of the framing.
http://hallman.org/bolger/windowdetail.gif
What window mounting detail does Bolger
show for Birdwatcher, and for other of his
Lexan windowed boats?
>> It will also crack the plastic if you overtighten at all.OK Bruce,
>> Craig O'Donnell
>
>With Acrylic, but not polycarbonate, a.k.a. "Lexan".
bring some lexan and replace the piece that cracked on my Birdwatcher. If
you overtighten a "bugle head" or countersunk screw on Lexan you will crack
it.
I was test fitting pieces and inadvertently tightened one screw too much.
Trust me on this one.
--
Craig O'Donnell
Sinepuxent Ancestors & Boats
<http://freepages.genealogy.rootsweb.com/~fassitt/>
The Proa FAQ <http://boat-links.com/proafaq.html>
The Cheap Pages <http://www.friend.ly.net/~dadadata/>
Sailing Canoes, Polytarp Sails, Bamboo, Chinese Junks,
American Proas, the Bolger Boat Honor Roll,
Plywood Boats, Bamboo Rafts, &c.
_________________________________
-- Professor of Boatology -- Junkomologist
-- Macintosh kinda guy
Friend of Wanda the Wonder Cat, 1991-1997.
_________________________________
Considering Bolger boats generally have nearly flat windows, I must say that the only real problem with counter sunk screws in Lexan might be the ripple effect as the window expands in the sun. Maybe over time the constant movement would loosen the mounting screws, who knows.
Jeff
Jeff
----- Original Message -----
From: Bruce Hallman
To:bolger@yahoogroups.com
Sent: Monday, September 27, 2004 9:39 AM
Subject: Re: [bolger] Re Lexan mounting
> Lexan is still a fluid in a sense that it's so flexible and shock
>resistant but it will still separate given enough time under stress.
> Even on simple curves, manufactures of lexan products will heat
>mold it to shape so it can possibly last a lifetime rather than say 10 years.
> Jeff
Fair enough. I don't see much long term stress in a boat
window application. It would need to withstand one
rogue wave in a lifetime, if at all.
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> Lexan is still a fluid in a sense that it's so flexible and shockFair enough. I don't see much long term stress in a boat
>resistant but it will still separate given enough time under stress.
> Even on simple curves, manufactures of lexan products will heat
>mold it to shape so it can possibly last a lifetime rather than say 10 years.
> Jeff
window application. It would need to withstand one
rogue wave in a lifetime, if at all.
I believe it's the long term effects of stress. The 24 hours a day, 7 days a week, over years. Lexan is still a fluid in a sense that it's so flexible and shock resistant but it will still separate given enough time under stress. Even on simple curves, manufactures of lexan products will heat mold it to shape so it can possibly last a lifetime rather than say 10 years.
Jeff
Jeff
----- Original Message -----
From: Bruce Hallman
To:bolger@yahoogroups.com
Sent: Monday, September 27, 2004 8:47 AM
Subject: Re: [bolger] Re Lexan mounting
> It will also crack the plastic if you overtighten at all.
> Craig O'Donnell
With Acrylic, but not polycarbonate, a.k.a. "Lexan".
FWIW, I took a 'scrap' piece of Lexan plastic,
1/8" by 1/4" by 18" and I tried to break it with
my bare hands by pulling and bending it back
and forth repeatedly. I simply could not break it.
I find it very hard to imagine Lexan cracking under
any real world circumstance.
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
- Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
Yahoo! Groups Links
[Non-text portions of this message have been removed]
> It will also crack the plastic if you overtighten at all.With acrylic, but not polycarbonate, a.k.a. "Lexan".
> Craig O'Donnell
FWIW, I took a 'scrap' piece of Lexan plastic,
1/8" by 1/4" by 18" and I tried to break it with
my bare hands by pulling and bending it back
and forth repeatedly. I simply could not break it.
I find it very hard to imagine Lexan cracking under
any real world circumstance.
> It will also crack the plastic if you overtighten at all.With Acrylic, but not polycarbonate, a.k.a. "Lexan".
> Craig O'Donnell
FWIW, I took a 'scrap' piece of Lexan plastic,
1/8" by 1/4" by 18" and I tried to break it with
my bare hands by pulling and bending it back
and forth repeatedly. I simply could not break it.
I find it very hard to imagine Lexan cracking under
any real world circumstance.
>It will also crack the plastic if you overtighten at all.
>Someone wanted to use countersunk flat heads. Don't. This does not allow
>any room to move and negates the point of using oversized holes.
If you must use flathead screws, use plastic or metal cup washers.
--
Craig O'Donnell
Sinepuxent Ancestors & Boats
<http://freepages.genealogy.rootsweb.com/~fassitt/>
The Proa FAQ <http://boat-links.com/proafaq.html>
The Cheap Pages <http://www.friend.ly.net/~dadadata/>
Sailing Canoes, Polytarp Sails, Bamboo, Chinese Junks,
American Proas, the Bolger Boat Honor Roll,
Plywood Boats, Bamboo Rafts, &c.
_________________________________
-- Professor of Boatology -- Junkomologist
-- Macintosh kinda guy
Friend of Wanda the Wonder Cat, 1991-1997.
_________________________________
Someone wanted to use countersunk flat heads. Don't. This does not allow
any room to move and negates the point of using oversized holes.
any room to move and negates the point of using oversized holes.