Stringers AARGGHHH!

Power Boats only. Please include the boat type in your question.
OneWayTraffic
* Bateau Builder *
* Bateau Builder *
Posts: 730
Joined: Sat Jan 10, 2015 7:13 pm
Location: New Zealand

Re: Stringers AARGGHHH!

Post by OneWayTraffic » Fri Jan 31, 2020 5:53 am

Cut the transom again. I'm getting better at ripping stringers as well.

I used about 20 screws this time, and a few clamps around the edges. Tightened (inside screws first) until contact was made then another half turn. Squeeze out all around, but not a lot.

I'll have a look in the morning but it looks much much better. Used about 500ml (over a pound) of epoxy plus fillers and wetout coat.
Thickened to a bit past mayo, just enough to hold shape when spread with a notched spreader.
Used some excess to start plugging the outboard transom holes.



fallguy1000
Very Active Poster
Very Active Poster
Posts: 5443
Joined: Tue Jan 12, 2010 12:25 am

Re: Stringers AARGGHHH!

Post by fallguy1000 » Fri Jan 31, 2020 10:36 am

OneWayTraffic wrote:
Fri Jan 31, 2020 5:53 am
Cut the transom again. I'm getting better at ripping stringers as well.

I used about 20 screws this time, and a few clamps around the edges. Tightened (inside screws first) until contact was made then another half turn. Squeeze out all around, but not a lot.

I'll have a look in the morning but it looks much much better. Used about 500ml (over a pound) of epoxy plus fillers and wetout coat.
Thickened to a bit past mayo, just enough to hold shape when spread with a notched spreader.
Used some excess to start plugging the outboard transom holes.
I'd say you are in great shape. I figured 12 oz was sort of short even...but didn't want you to overmix.
My boat build is here -------->

viewtopic.php?f=12&t=62495

OneWayTraffic
* Bateau Builder *
* Bateau Builder *
Posts: 730
Joined: Sat Jan 10, 2015 7:13 pm
Location: New Zealand

Re: Stringers AARGGHHH!

Post by OneWayTraffic » Fri Jan 31, 2020 5:30 pm

I have predrilled some hole so could always fill with excess.

Have posted a photo so people reading this can see what worked for me. Hand turned screws in pilot holes the way to go I reckon. Easy to adjust pressure. Clamps for places around the edges where small gaps show.
Attachments
image.jpg

fallguy1000
Very Active Poster
Very Active Poster
Posts: 5443
Joined: Tue Jan 12, 2010 12:25 am

Re: Stringers AARGGHHH!

Post by fallguy1000 » Fri Jan 31, 2020 9:36 pm

You can't fill big holes or the epoxy will exotherm. fyi
My boat build is here -------->

viewtopic.php?f=12&t=62495

User avatar
OrangeQuest
Very Active Poster
Very Active Poster
Posts: 3038
Joined: Tue Aug 28, 2018 1:14 pm
Location: Houston, Texas

Re: Stringers AARGGHHH!

Post by OrangeQuest » Sat Feb 01, 2020 4:09 am

You can save the plugs from the cut holes and use them to plug the holes.
"that it isn't just an ordinary sort of boat. Sometimes it's a Boat, and sometimes it's more of an Accident. It all depends." "Depends on what?" "On whether I'm on the top of it or underneath it."
A. A. Milne

User avatar
cape man
* Bateau Builder - Expert *
* Bateau Builder - Expert *
Posts: 6560
Joined: Sun Jan 20, 2008 12:02 pm
Location: Lithia, Florida

Re: Stringers AARGGHHH!

Post by cape man » Sat Feb 01, 2020 8:04 am

I have a 3 inch hole in the bottom of my dory filled with epoxy and glass threads for a shoot through hull transducer which didn't "exotherm" beyond working. It probably got hot while curing but not a problem.
The world always seems brighter when you've just made something that wasn't there before - Neil Gaiman

User avatar
OrangeQuest
Very Active Poster
Very Active Poster
Posts: 3038
Joined: Tue Aug 28, 2018 1:14 pm
Location: Houston, Texas

Re: Stringers AARGGHHH!

Post by OrangeQuest » Sat Feb 01, 2020 9:11 am

cape man wrote:
Sat Feb 01, 2020 8:04 am
I have a 3 inch hole in the bottom of my dory filled with epoxy and glass threads for a shoot through hull transducer which didn't "exotherm" beyond working. It probably got hot while curing but not a problem.
How thick is your glass/epoxy there and does it seem to effect the transducer's abilities?

I would like to do a small FF that way too.
"that it isn't just an ordinary sort of boat. Sometimes it's a Boat, and sometimes it's more of an Accident. It all depends." "Depends on what?" "On whether I'm on the top of it or underneath it."
A. A. Milne

fallguy1000
Very Active Poster
Very Active Poster
Posts: 5443
Joined: Tue Jan 12, 2010 12:25 am

Re: Stringers AARGGHHH!

Post by fallguy1000 » Sat Feb 01, 2020 9:25 am

cape man wrote:
Sat Feb 01, 2020 8:04 am
I have a 3 inch hole in the bottom of my dory filled with epoxy and glass threads for a shoot through hull transducer which didn't "exotherm" beyond working. It probably got hot while curing but not a problem.
All depends on thickness. 3/4"thick will exo and crack about half time on say a 2" wide hole, so if you are thicker, like 1 3/4; that shit will be smoking if you try to fill it. Mine was just a warning to the OP to avoid trouble. Epoxy can catch fire in a big ball; never saw it, but I have had a couple cups melt..

For a ducer fairing, there is no need to fill the whole hole.
My boat build is here -------->

viewtopic.php?f=12&t=62495

Jaysen
* Bateau Builder *
* Bateau Builder *
Posts: 4782
Joined: Wed Aug 05, 2015 7:59 am
Location: St Helena Island, SC

Re: Stringers AARGGHHH!

Post by Jaysen » Sat Feb 01, 2020 10:52 am

So fill it in a couple of smaller batches over the course of a couple days. It’s still going to form a chemical link and greatly reduce the risk. Not a hard problem to solve.
Visit my official Class Globe 580 build blog at https://jaysenodell.com/globe-580
Currently starting a build of "Lil Bit More". A Class Mini 5.80
Class Mini 580 welcome post.
My already completed 'Lil Bit'. A Martens Goosen V12 set up to sail me to the fishing holes.
Jaysen wrote:
Mon Apr 29, 2019 3:44 pm
I tried to say something but God thought I was wrong and filled my mouth with saltwater. I kept my pie hole shut after that.

fallguy1000
Very Active Poster
Very Active Poster
Posts: 5443
Joined: Tue Jan 12, 2010 12:25 am

Re: Stringers AARGGHHH!

Post by fallguy1000 » Sat Feb 01, 2020 11:42 am

Jaysen wrote:
Sat Feb 01, 2020 10:52 am
So fill it in a couple of smaller batches over the course of a couple days. It’s still going to form a chemical link and greatly reduce the risk. Not a hard problem to solve.
You can even just wait an hour and a half or until the last one starts to cool off.

I just know he had trouble, so trying to watch out for the guy!
My boat build is here -------->

viewtopic.php?f=12&t=62495

Post Reply

Who is online

Users browsing this forum: gtcoupe and 3 guests