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-   -   Hard top dodger/bimini (https://www.boatbanter.com/cruising/108045-hard-top-dodger-bimini.html)

ryanonthebeach[_2_] July 20th 09 09:43 PM

Hard top dodger/bimini
 
Hey all

I'm designing a hard top dodger for my catamaran see

http://www.psychosnail.com/blog/post...rd-Dodger.aspx

Was wondering if any of you have experience working with Last-A-Foam
as a core using hand lay up?
Is this a good material for hand layup, any gotchas or
recommendations?

cavelamb July 20th 09 11:40 PM

Hard top dodger/bimini
 
ryanonthebeach wrote:
Hey all

I'm designing a hard top dodger for my catamaran see

http://www.psychosnail.com/blog/post...rd-Dodger.aspx

Was wondering if any of you have experience working with Last-A-Foam
as a core using hand lay up?
Is this a good material for hand layup, any gotchas or
recommendations?



http://www.generalplastics.com/appli...ail.php?aid=14

http://www.generalplastics.com/uploa...lications.pdf?

A warning about solvent based and heat cured adhesives.

Using Epoxy resins, should be fine.

Expect it to be heavier than you expect!


Richard


Joel Vannorsdel July 21st 09 12:20 AM

Hard top dodger/bimini
 
On Jul 20, 1:43*pm, ryanonthebeach wrote:
Hey all

I'm designing a hard top dodger for my catamaran see

http://www.psychosnail.com/blog/post...mini-hard-Dodg...

Was wondering if any of you have experience working with Last-A-Foam
as a core using hand lay up?
Is this a good material for hand layup, any gotchas or
recommendations?


I just built a hard top for my dodger using plywood and fiberglass.
It worked OK, but now I think I would use aluminum and the Orgami
method of bending it. Here is the website http://www.origamimagic.com/
to give you an idea of how it works. What it can do is take the shape
from a curved aluminum brace and bend a sheet of 1/4" or what ever to
the required bend. It used very simple techniques to do this and
simple tools. Just a little welding and you could have a very slick
top. This is what I am planning on doing on my next boat.

Good luck with what ever you choose. I know the fiberglass work I did
on my plywood top was a pain.

Joel

S/V Fat Tuesday

Geoff Schultz July 21st 09 12:00 PM

Hard top dodger/bimini
 
ryanonthebeach wrote in
:

Hey all

I'm designing a hard top dodger for my catamaran see

http://www.psychosnail.com/blog/post...ni-hard-Dodger
.aspx

Was wondering if any of you have experience working with Last-A-Foam
as a core using hand lay up?
Is this a good material for hand layup, any gotchas or
recommendations?


I had my soft dodger converted to a hard dodger by a friend of mine in FL.
He used the original stainless for the soft dodger as the frame for the
hard dodger. This was welded to keep it rigid. The top and the bottom are
1/8" fiberglass sheets and the interior is honeycomb. The whole assembly
was Awlgripped to match the non-skid. We constantly get complements on the
construction. However, Erik said that he would never build another one as
it was a royal pain...

-- Geoff
www.GeoffSchultz.org

ryanonthebeach[_2_] July 21st 09 11:17 PM

Hard top dodger/bimini
 
On Jul 20, 4:20*pm, Joel Vannorsdel wrote:
On Jul 20, 1:43*pm, ryanonthebeach wrote:

Hey all


I'm designing a hard top dodger for my catamaran see


http://www.psychosnail.com/blog/post...mini-hard-Dodg...


Was wondering if any of you have experience working with Last-A-Foam
as a core using hand lay up?
Is this a good material for hand layup, any gotchas or
recommendations?


I just built a hard top for my dodger using plywood and fiberglass.
It worked OK, but now I think I would use aluminum and the Orgami
method of bending it. *Here is the websitehttp://www.origamimagic.com/
to give you an idea of how it works. *What it can do is take the shape
from a curved aluminum brace and bend a sheet of 1/4" or what ever to
the required bend. *It used very simple techniques to do this and
simple tools. *Just a little welding and you could have a very slick
top. *This is what I am planning on doing on my next boat.

Good luck with what ever you choose. *I know the fiberglass work I did
on my plywood top was a pain.

Joel

S/V Fat Tuesday


Aluminum pretty, but to heavy

ryanonthebeach[_2_] July 22nd 09 08:07 PM

Hard top dodger/bimini
 
On Jul 21, 4:00*am, Geoff Schultz wrote:
ryanonthebeach wrote :

Hey all


I'm designing a hard top dodger for my catamaran see


http://www.psychosnail.com/blog/post...ni-hard-Dodger
.aspx


Was wondering if any of you have experience working with Last-A-Foam
as a core using hand lay up?
Is this a good material for hand layup, any gotchas or
recommendations?


I had my soft dodger converted to a hard dodger by a friend of mine in FL.. *
He used the original stainless for the soft dodger as the frame for the
hard dodger. *This was welded to keep it rigid. *The top and the bottom are
1/8" fiberglass sheets and the interior is honeycomb. *The whole assembly
was Awlgripped to match the non-skid. *We constantly get complements on the
construction. *However, Erik said that he would never build another one as
it was a royal pain...

-- Geoffwww.GeoffSchultz.org


Thanks for the info Geoff

That's an interesting idea using the original frame. I would have
given that serious consideration except that part of the reason I'm
replacing the original is because the supports are all in the wrong
places. Makes it difficult to get in and out. so i would have to do a
number of modifications, plus I'm not sure it'll be strong enough for
the four 120w solar panels.

Capt. JG July 22nd 09 09:22 PM

Hard top dodger/bimini
 
"Geoff Schultz" wrote in message
.. .
ryanonthebeach wrote in
:

Hey all

I'm designing a hard top dodger for my catamaran see

http://www.psychosnail.com/blog/post...ni-hard-Dodger
.aspx

Was wondering if any of you have experience working with Last-A-Foam
as a core using hand lay up?
Is this a good material for hand layup, any gotchas or
recommendations?


I had my soft dodger converted to a hard dodger by a friend of mine in FL.
He used the original stainless for the soft dodger as the frame for the
hard dodger. This was welded to keep it rigid. The top and the bottom
are
1/8" fiberglass sheets and the interior is honeycomb. The whole assembly
was Awlgripped to match the non-skid. We constantly get complements on
the
construction. However, Erik said that he would never build another one as
it was a royal pain...

-- Geoff
www.GeoffSchultz.org



Geoff,

Is this picture of the hard dodger? It looks really nice. My dodger fabric
is just about shot, and I've been thinking about replacing it, but then I
saw your post, and I was thinking this might be a better, longer-lasting
solution. I have a friend who can do the welding. Where did you get the
fiberglass sheets? Do you have any drawings, plans, or any other pics I
might look at (of the construction or just finished pictures)? This would be
a winter project, since I and students prefer something to hide behind in
the summer.

http://www.geoffschultz.org/BlueJack...121_095647.htm


--
"j" ganz @@
www.sailnow.com




Lew Hodgett[_3_] July 22nd 09 09:46 PM

Hard top dodger/bimini
 

"Capt. JG" wrote:

Where did you get the fiberglass sheets?


Get a hold of DMC in San Diego.

DB170 (17 OZ, +\-45 double bias) glass (No Mat required) is sold by
the yard from a 50"
wide roll.

They sell Divinycell, laminating epoxy and glass.

Ask for Rich.

Lew



Capt. JG July 22nd 09 10:03 PM

Hard top dodger/bimini
 
"Lew Hodgett" wrote in message
...

"Capt. JG" wrote:

Where did you get the fiberglass sheets?


Get a hold of DMC in San Diego.

DB170 (17 OZ, +\-45 double bias) glass (No Mat required) is sold by the
yard from a 50"
wide roll.

They sell Divinycell, laminating epoxy and glass.

Ask for Rich.

Lew




Thanks... appreciate it!

--
"j" ganz @@
www.sailnow.com




Capt. JG July 22nd 09 10:08 PM

Hard top dodger/bimini
 
"Lew Hodgett" wrote in message
...

"Capt. JG" wrote:

Where did you get the fiberglass sheets?


Get a hold of DMC in San Diego.

DB170 (17 OZ, +\-45 double bias) glass (No Mat required) is sold by the
yard from a 50"
wide roll.

They sell Divinycell, laminating epoxy and glass.

Ask for Rich.

Lew




Lew... do you have a phone number or address for them... can't seem to find
them.

--
"j" ganz @@
www.sailnow.com




Lew Hodgett[_3_] July 22nd 09 11:16 PM

Hard top dodger/bimini
 
"Capt. JG" wrote:


Lew... do you have a phone number or address for them... can't seem to
find
them.

1-800-245-3053

Lew



Capt. JG July 23rd 09 01:08 AM

Hard top dodger/bimini
 
"Lew Hodgett" wrote in message
...
"Capt. JG" wrote:


Lew... do you have a phone number or address for them... can't seem to
find
them.

1-800-245-3053

Lew




Thanks!

--
"j" ganz @@
www.sailnow.com




Geoff Schultz July 23rd 09 03:14 AM

Hard top dodger/bimini
 
"Capt. JG" wrote in
:

"Geoff Schultz" wrote in message
.. .
ryanonthebeach wrote in
:

Hey all

I'm designing a hard top dodger for my catamaran see

http://www.psychosnail.com/blog/post...mini-hard-Dodg
er .aspx

Was wondering if any of you have experience working with Last-A-Foam
as a core using hand lay up?
Is this a good material for hand layup, any gotchas or
recommendations?


I had my soft dodger converted to a hard dodger by a friend of mine
in FL. He used the original stainless for the soft dodger as the
frame for the hard dodger. This was welded to keep it rigid. The
top and the bottom are
1/8" fiberglass sheets and the interior is honeycomb. The whole
assembly was Awlgripped to match the non-skid. We constantly get
complements on the
construction. However, Erik said that he would never build another
one as it was a royal pain...

-- Geoff
www.GeoffSchultz.org



Geoff,

Is this picture of the hard dodger? It looks really nice. My dodger
fabric is just about shot, and I've been thinking about replacing it,
but then I saw your post, and I was thinking this might be a better,
longer-lasting solution. I have a friend who can do the welding. Where
did you get the fiberglass sheets? Do you have any drawings, plans, or
any other pics I might look at (of the construction or just finished
pictures)? This would be a winter project, since I and students prefer
something to hide behind in the summer.

http://www.geoffschultz.org/BlueJack...121_095647.htm


Yes, this is my dodger. I don't know where the fiberglass sheets came
from, but it sounds like you've got some suggestions. I'll be glad to
take some detailed photos of the completed project if you're interested.

-- Geoff
www.GeoffSchultz.org

Capt. JG July 23rd 09 03:34 AM

Hard top dodger/bimini
 
"Geoff Schultz" wrote in message
.. .
"Capt. JG" wrote in
:

"Geoff Schultz" wrote in message
.. .
ryanonthebeach wrote in
:

Hey all

I'm designing a hard top dodger for my catamaran see

http://www.psychosnail.com/blog/post...mini-hard-Dodg
er .aspx

Was wondering if any of you have experience working with Last-A-Foam
as a core using hand lay up?
Is this a good material for hand layup, any gotchas or
recommendations?

I had my soft dodger converted to a hard dodger by a friend of mine
in FL. He used the original stainless for the soft dodger as the
frame for the hard dodger. This was welded to keep it rigid. The
top and the bottom are
1/8" fiberglass sheets and the interior is honeycomb. The whole
assembly was Awlgripped to match the non-skid. We constantly get
complements on the
construction. However, Erik said that he would never build another
one as it was a royal pain...

-- Geoff
www.GeoffSchultz.org



Geoff,

Is this picture of the hard dodger? It looks really nice. My dodger
fabric is just about shot, and I've been thinking about replacing it,
but then I saw your post, and I was thinking this might be a better,
longer-lasting solution. I have a friend who can do the welding. Where
did you get the fiberglass sheets? Do you have any drawings, plans, or
any other pics I might look at (of the construction or just finished
pictures)? This would be a winter project, since I and students prefer
something to hide behind in the summer.

http://www.geoffschultz.org/BlueJack...121_095647.htm


Yes, this is my dodger. I don't know where the fiberglass sheets came
from, but it sounds like you've got some suggestions. I'll be glad to
take some detailed photos of the completed project if you're interested.

-- Geoff
www.GeoffSchultz.org



I would very much! There's no huge rush, as this is going to be a winter
project. I tend to sail a bit less then anyway, and not having a dodger
wouldn't be a hardship then anyway.

Looks like there are a couple of places somewhat local to me that have the
material. I just have to line up the welding, windows for the dodger, etc.

--
"j" ganz @@
www.sailnow.com




Wayne.B July 23rd 09 05:44 AM

Hard top dodger/bimini
 
On Wed, 22 Jul 2009 21:14:45 -0500, Geoff Schultz
wrote:

Yes, this is my dodger. I don't know where the fiberglass sheets came
from, but it sounds like you've got some suggestions. I'll be glad to
take some detailed photos of the completed project if you're interested.


I'm trying to figure out from the pictures whether or not you went
with "hard" windows or flexible? Are there cutouts for control lines?


Capt. JG July 23rd 09 04:16 PM

Hard top dodger/bimini
 
"Wayne.B" wrote in message
...
On Wed, 22 Jul 2009 21:14:45 -0500, Geoff Schultz
wrote:

Yes, this is my dodger. I don't know where the fiberglass sheets came
from, but it sounds like you've got some suggestions. I'll be glad to
take some detailed photos of the completed project if you're interested.


I'm trying to figure out from the pictures whether or not you went
with "hard" windows or flexible? Are there cutouts for control lines?



Excellent questions...

--
"j" ganz @@
www.sailnow.com




Geoff Schultz July 24th 09 01:03 AM

Hard top dodger/bimini
 
"Capt. JG" wrote in news:ipCdnX_qJZpV4
reasolutions:

"Wayne.B" wrote in message
...
On Wed, 22 Jul 2009 21:14:45 -0500, Geoff Schultz
wrote:

Yes, this is my dodger. I don't know where the fiberglass sheets came
from, but it sounds like you've got some suggestions. I'll be glad to
take some detailed photos of the completed project if you're interested.


I'm trying to figure out from the pictures whether or not you went
with "hard" windows or flexible? Are there cutouts for control lines?


After several iterations, I've gone with 60 mil Strataglass. I'll post
pictures when I get back down to the boat. We were planning on going
today, but we're in the middle of a tropical monsoon here...And yes, there
are cut-outs for the lines.

-- Geoff
www.GeoffSchultz.org


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