Re: storing panels without warping?
This is a slow answer, already partly covered, but I'll say that I
haven't seen a Bolger design where plywood warping could be a factor
unless the plywood is seriously defective and was manufactured with a
cupping defect or something.
All Bolger designs use plywood in such a way that the plywood is
either reinforced into straightness, or curvature is induced,
negating any warping that may have occurred in storage. PCB is
obviously aware of the limitations of various plywood thicknesses.
In other words, don't worry about warping in storage. Not a problem.
Tom Pannell
haven't seen a Bolger design where plywood warping could be a factor
unless the plywood is seriously defective and was manufactured with a
cupping defect or something.
All Bolger designs use plywood in such a way that the plywood is
either reinforced into straightness, or curvature is induced,
negating any warping that may have occurred in storage. PCB is
obviously aware of the limitations of various plywood thicknesses.
In other words, don't worry about warping in storage. Not a problem.
Tom Pannell
The epoxy-sealed panels, stored out of the weather,
should not warp as such, but may take a slight set
over time. Any set should easily be overcome when the
ends are pulled in during assembly. I didn't have any
trouble in this regard when assembling my Topaz, and
my sides were leaned against an uneven wall for some
months. Good luck, Sam.
--
Do You Yahoo!?
Send FREE Valentine eCards with Yahoo! Greetings!
http://greetings.yahoo.com
should not warp as such, but may take a slight set
over time. Any set should easily be overcome when the
ends are pulled in during assembly. I didn't have any
trouble in this regard when assembling my Topaz, and
my sides were leaned against an uneven wall for some
months. Good luck, Sam.
--
>__________________________________________________
Do You Yahoo!?
Send FREE Valentine eCards with Yahoo! Greetings!
http://greetings.yahoo.com
Jamie, thanks, that sounds right. The damned walls are stone,
but l'll work something out.
sails better in a big blow with the mizzen furled. For what it's
worth, the Topaz is in no way intended as a Chebacco
replacement. It's meant to be a dayboat for a crowd and an
all-weather family cruiser. The Chebacco is a little tight for
cruising with a family of four. I gave a lot of thought to building a
bigger auxiliary, but then decided I don't need to do my motoring
and sailing in the same boat. So the Chebacco will remain in
the family and be the preferred vessel for many occasions.
--Tim.
but l'll work something out.
>Just great, especially with last summer's revelation that she
> P.S. How's the Chebacco sailing these days?
>
sails better in a big blow with the mizzen furled. For what it's
worth, the Topaz is in no way intended as a Chebacco
replacement. It's meant to be a dayboat for a crowd and an
all-weather family cruiser. The Chebacco is a little tight for
cruising with a family of four. I gave a lot of thought to building a
bigger auxiliary, but then decided I don't need to do my motoring
and sailing in the same boat. So the Chebacco will remain in
the family and be the preferred vessel for many occasions.
--Tim.
I would clamp (or even nail) them, with stiffeners, to the garage wall, if
the studs are exposed in the wall (and the wall is flat!) If your wall is
finished, then perhaps tie them against it as nearly vertical as you can. I
would still clamp stiffeners on them. In any case, make sure that air can
circulate around them -- put spacers behind the pieces next to the wall, or
there may be condensation on the wall side, due to the temperature
difference, that will cause them to warp.
When you come to use them, you can always clamp (or screw) a temporary
stiffener to them while installing them, if they have warped. A dab of
epoxy will cover the screw holes nicely.
Jamie Orr
P.S. How's the Chebacco sailing these days?
-----Original Message-----
From: timk_smith [mailto:timk_smith@...]
Sent: February 5, 2002 9:17 PM
To:bolger@yahoogroups.com
Subject: [bolger] storing panels without warping?
I'm cutting out parts for a Topaz, working in a constrained space.
Bulkheads,
cabin roof and sides, and other floppy panels will have to be
premanufactured
and stored while the bottom goes together, and I don't have room to store
them flat. I worry that leaning them against the garage wall will cause
them to
warp. Any ideas? Most will be glassed, so maybe it's not a problem? Or
should I hang them from the ceiling? Lean them at an acute angle clamped
with stiffeners? What have others done?
--Tim.
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- pls take "personals" off-list, stay on topic, and punctuate
- add your comments at the TOP and SIGN your posts, snip all you like
- To order plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA,
01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
Your use of Yahoo! Groups is subject tohttp://docs.yahoo.com/info/terms/
the studs are exposed in the wall (and the wall is flat!) If your wall is
finished, then perhaps tie them against it as nearly vertical as you can. I
would still clamp stiffeners on them. In any case, make sure that air can
circulate around them -- put spacers behind the pieces next to the wall, or
there may be condensation on the wall side, due to the temperature
difference, that will cause them to warp.
When you come to use them, you can always clamp (or screw) a temporary
stiffener to them while installing them, if they have warped. A dab of
epoxy will cover the screw holes nicely.
Jamie Orr
P.S. How's the Chebacco sailing these days?
-----Original Message-----
From: timk_smith [mailto:timk_smith@...]
Sent: February 5, 2002 9:17 PM
To:bolger@yahoogroups.com
Subject: [bolger] storing panels without warping?
I'm cutting out parts for a Topaz, working in a constrained space.
Bulkheads,
cabin roof and sides, and other floppy panels will have to be
premanufactured
and stored while the bottom goes together, and I don't have room to store
them flat. I worry that leaning them against the garage wall will cause
them to
warp. Any ideas? Most will be glassed, so maybe it's not a problem? Or
should I hang them from the ceiling? Lean them at an acute angle clamped
with stiffeners? What have others done?
--Tim.
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- pls take "personals" off-list, stay on topic, and punctuate
- add your comments at the TOP and SIGN your posts, snip all you like
- To order plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA,
01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
Your use of Yahoo! Groups is subject tohttp://docs.yahoo.com/info/terms/
It's dead flat half-inch MDO. Speaking of which, Vince, on your
bulkheads, when you glassed them, did you work out a neat way
to glass the exposed edges? Can you get a good result folding
the cloth over? Or did you just glass the faces and use
thickened epoxy on the edges? (I'm thinking windows and door
frames here).
--Tim.
--- In bolger@y..., Vince and Mary Ann Chew <vachew@v...>
wrote:
bulkheads, when you glassed them, did you work out a neat way
to glass the exposed edges? Can you get a good result folding
the cloth over? Or did you just glass the faces and use
thickened epoxy on the edges? (I'm thinking windows and door
frames here).
--Tim.
--- In bolger@y..., Vince and Mary Ann Chew <vachew@v...>
wrote:
> Were the sheets of ply absolutely flat when you got them, or didthey
> tend to curl already?
Tim --
When I was putting my scooner together, the whole thing got rained on
while it was still bulkheads and topsides. The topsides warped like
crazy. I thought I was going to have to scrap it and start over.
By the time I dry-fit chinelogs and shearclamps in place everything
straighten back up.
My guess is that although it may warp this way or that, plywood is so
dimensionally stable that you can't get into too much trouble. Sort
of that "only bends in one direction" thing working in your favor.
Only one experience, but a good one.
YIBB,
David
134 West 26th St. 12th Floor
New York, New York 10001
http://www.crumblingempire.com
(212) 247-0296
When I was putting my scooner together, the whole thing got rained on
while it was still bulkheads and topsides. The topsides warped like
crazy. I thought I was going to have to scrap it and start over.
By the time I dry-fit chinelogs and shearclamps in place everything
straighten back up.
My guess is that although it may warp this way or that, plywood is so
dimensionally stable that you can't get into too much trouble. Sort
of that "only bends in one direction" thing working in your favor.
Only one experience, but a good one.
YIBB,
David
> I'm cutting out parts for a Topaz, working in a constrained space.C.E.P.
>Bulkheads,
>cabin roof and sides, and other floppy panels will have to be premanufactured
>and stored while the bottom goes together, and I don't have room to store
>them flat. I worry that leaning them against the garage wall will
>cause them to
>warp. Any ideas? Most will be glassed, so maybe it's not a problem? Or
>should I hang them from the ceiling? Lean them at an acute angle clamped
>with stiffeners? What have others done?
>
>--Tim.
>
>
>
>Bolger rules!!!
>- no cursing, flaming, trolling, spamming, or flogging dead horses
>- pls take "personals" off-list, stay on topic, and punctuate
>- add your comments at the TOP and SIGN your posts, snip all you like
>- To order plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester,
>MA, 01930, Fax: (978) 282-1349
>- Unsubscribe:bolger-unsubscribe@yahoogroups.com
>
>Your use of Yahoo! Groups is subject tohttp://docs.yahoo.com/info/terms/
134 West 26th St. 12th Floor
New York, New York 10001
http://www.crumblingempire.com
(212) 247-0296
Were the sheets of ply absolutely flat when you got them, or did they
tend to curl already? My experience has been that any tendency to warp
is already apparent in the batch of plywood you get. It would probably
be best not to lean them. If you can't store them perfectly flat, they
should be vertical.
tend to curl already? My experience has been that any tendency to warp
is already apparent in the batch of plywood you get. It would probably
be best not to lean them. If you can't store them perfectly flat, they
should be vertical.
I'm cutting out parts for a Topaz, working in a constrained space. Bulkheads,
cabin roof and sides, and other floppy panels will have to be premanufactured
and stored while the bottom goes together, and I don't have room to store
them flat. I worry that leaning them against the garage wall will cause them to
warp. Any ideas? Most will be glassed, so maybe it's not a problem? Or
should I hang them from the ceiling? Lean them at an acute angle clamped
with stiffeners? What have others done?
--Tim.
cabin roof and sides, and other floppy panels will have to be premanufactured
and stored while the bottom goes together, and I don't have room to store
them flat. I worry that leaning them against the garage wall will cause them to
warp. Any ideas? Most will be glassed, so maybe it's not a problem? Or
should I hang them from the ceiling? Lean them at an acute angle clamped
with stiffeners? What have others done?
--Tim.