Trimming at shear line Tips

Welcome to the new Bear Mountain Builders Forum - an interactive internet service we provide to encourage communication between canoe and kayak builders
Post Reply
JesseP
Posts: 46
Joined: Fri Apr 10, 2015 11:13 am
Location: East Central, AB

Trimming at shear line Tips

Post by JesseP » Sun Jun 14, 2015 5:33 pm

I have all of my strips on and Westsystem and fibreglass on order! I have been looking at the canoe for a few days hesitant to make the first cut haha. I need to cut at the shearline and don't want any major mess ups at this point.. I have made a template that uses a fair curve connection each stations shear lines. My intent is to use that template for all for cuts. Does this sound like the right move.(P.S Canoecraft is missing..I blame the wife lol.) Any advice on tool to do the cutting would be great.

Thanks again.. Pictures coming later today..need to find camera
I'm up to my torch.

JesseP
Posts: 46
Joined: Fri Apr 10, 2015 11:13 am
Location: East Central, AB

Re: Trimming at shear line Tips

Post by JesseP » Sun Jun 14, 2015 5:35 pm

Correction*** all four cuts***
I'm up to my torch.

JesseP
Posts: 46
Joined: Fri Apr 10, 2015 11:13 am
Location: East Central, AB

Re: Trimming at shear line Tips

Post by JesseP » Sun Jun 14, 2015 5:49 pm

I'm up to my torch.

User avatar
Jim Dodd
Posts: 1178
Joined: Wed Feb 08, 2006 11:08 pm
Location: Iowa

Re: Trimming at shear line Tips

Post by Jim Dodd » Sun Jun 14, 2015 8:13 pm

My advice is to mark the shearline all around, and cut, staying away from the shearline, lets say 1/2" or more. Once you glass the outside, and remove the hull from the forms, you can come back and trim the shearline true.
Some times flaws develop when glassing near the shear, and by leaving them proud, you come back and trim past them.
There are many tools you can use, a Coping saw, a Keyhole saw, a Dremel tool, builders choice !

I hope that helps !

Jim
Keep your paddle wet and your seat dry!

User avatar
Denis
Posts: 311
Joined: Tue May 11, 2004 8:11 am
Location: Lakefield, Ontario
Contact:

Re: Trimming at shear line Tips

Post by Denis » Mon Jun 15, 2015 3:35 pm

If you have a pattern already made up and it is for a symetrical boat ie a
Ranger or something like that I would draw your pattern on the hull with a pen and cut it carefully with a shop knife. Repeated shallow draws along the line with the knife will cut it nice and smooth. Start at the outer stem area and cut to the middle.

Denis

JesseP
Posts: 46
Joined: Fri Apr 10, 2015 11:13 am
Location: East Central, AB

Re: Trimming at shear line Tips

Post by JesseP » Mon Jun 15, 2015 7:38 pm

Thanks for the input. It is a symmetrical boat the Hiawatha. I will cut shy of the line by about 1/2" and then glass and trim after glassing. I still need to work on mortising the outer stem... that is my next hurdle. Thanks for all the help so far. Everyone has been really helpful.

More pictures to follow
I'm up to my torch.

User avatar
Patricks Dad
Posts: 1378
Joined: Wed Oct 13, 2004 1:11 pm
Location: Warrenville, Illinois

Re: Trimming at shear line Tips

Post by Patricks Dad » Wed Jun 17, 2015 8:47 pm

I cut my sheerlines with a small (~1") circular saw blade on my dremel. I usually cut it a bit proud and then "trim" with a belt sander after the gunwales are installed. The gunwales will form a pretty fair curve on their own.
Randy Pfeifer
(847) 341-0618
Randy.Pfeifer1@gmail.com

alick burt
Posts: 255
Joined: Wed Sep 07, 2005 2:41 am
Location: united kingdom
Contact:

Re: Trimming at shear line Tips

Post by alick burt » Mon Jun 22, 2015 5:04 pm

On my latest Peterborough I marked and cut one quarter with a handsaw and then used the off cut after I had smoothed it a little to mark out the others.
Cheers
Alick :wink

User avatar
Denis
Posts: 311
Joined: Tue May 11, 2004 8:11 am
Location: Lakefield, Ontario
Contact:

Re: Trimming at shear line Tips

Post by Denis » Sun Jul 19, 2015 12:54 pm

DSC03118 (Large).JPG
DSC03119 (Large).JPG
you are likely past this step but as I mentioned earlier I cut the sheer line with a knife. When installing the inwales I push the inwale down slightly leaving some of the hull proud and sand it flush to the inwale.

I added a few pics from my work today as an example.


Denis
You do not have the required permissions to view the files attached to this post.

Post Reply