Two Paw #739 now 3D

[Peter HK]

Went 3D with the new build today. I'm planning ahead and building the tender for a larger boat that I intend to get in a few years when I cut back on work :grin:

The way my investments are at the moment it might be a little longer than anticipated

[hokeyhydro]

Nice work. It appears that separating the hull may require a two-beer run while stroking a pull saw, and I assume all the bolt join holes would be drilled prior to separating - yes?

[John Turpin]

Excellent.

Sawing my TwoPaw in half was one of the most traumatic experiences of my life.

[Hirilonde]

Looking good.  I spent a lot of time researching choices for a tender and found the hardest part deciding between a 2-Paw and a Spindrift Nesting.  4 Years later I know I found the best designs to choose from.

............and I assume all the bolt join holes would be drilled prior to separating - yes?

The nesting bulkheads are built from the same pattern, have the bushing holes drilled in the same place and filled prior to temporarily fastening them together with cardboard spaces.  After installation of the joined bulkheads the final bolt holes are drilled assuriing perfect alignment.

I used the nesting hardware designed by Garry and detailed in his post and link in the Articles Section of the forum.  I used bolts in the top as in the plans instead of the latch clamp Garry suggests, but built the hull connectors exactly as in his plans. I don't know that it matters much which is used in the top connection as it is the hook hardware in the hull that really makes this system shine.  I highly recommend looking into this option.  It was well worth the additional build time.  If you do a search of "connecting hardware" you will find several threads discussing this subject.

Good luck getting the boat to go with the tender too 

[Peter HK]

Thanks Guys

Here's a blurry photo of the bushings... to be drilled once everything is glassed.

[Jim Stumpf]

Looks Good

As far as sawing the hull in half I say "No Guts no Glory" 

We had a new laborer start on a custom kitchen job. The fabrication shop sent out a wall cabinet that should have been modified to cover a cant in the ceiling where part of a stairwell intersected the ceiling. I told the newbie to grab the circular saw and after 5 years with us he still talks about the shock of surgical carpentry. 

Jim

[Peter HK]

Some progress on the Two Paw. There certainly is a lot of taping on the bulkheads- 6 layers at the top.

Gluing up the laminated gunwales was a sticky messy job. I'm glad I set up the temporary bench to do it on.

I've now flipped the boat and planed/ sanded the chines ready for taping.

Not too long to the big incision.

Cheers

Peter HK

[Steve Day]

Peter,

Your work looks good. I remember when I got to the point of sawing my Spindrift in half. It was a bit of a leap of faith, to say the least.

I did most of my interior work before I took the saw out and the "big cut" was one of the last things I did before finish work.

Keep up the good work!

Steve

[Hirilonde]

I did most of my interior work before I took the saw out and the "big cut" was one of the last things I did before finish work.

Yup, anything that contributes to the shape, or keeping it should be done first, especially the gunwales. This way each half keeps itself fair to the other after the cut.

Looking good.

[Peter HK]

I thought I'd update with a few photos.

The keel went on nicely.

I've decided to encase the mast step in the forward seat/buoyancy chamber (like my CS17) so made a fibreglass tube to keep it watertight. I used the method with a split piece of 1/2 mm plastic under a thin sheet of other plastic. It worked well. You can see I had to pull a bit on the first one and stretched the plastic a little but the others just slipped out.

Cheers

Peter HK

[Peter HK]

Well today I made the big transverse incision.

It didn't go perfectly. I started well and cut through the gunwale and down the topside quite nicely.

I reattached the top bolt and continued the cut around the chine.

I continued along the bottom for a short distance.

Then I ran into a problem...the standard saw wanted to cut out through the ply bulkhead and I couldn't get the Japanese pull saw to work either as it jammed, presumably due to the minimal set.

At this point I started to work on a different principle, unfortunately forgetting to photograph it. I decided to establish some pilot holes to draw a line to cut to. This took a little trial and error but wasn't too hard. I then used the jigsaw to do the cut...It was fast, easy and accurate. If I were doing this again I would drill pilot holes before fitting the double bulkhead and use a jigsaw except at the gunwales and chines.

It worked out OK...I have a 3 inch section of bulkhead to repair but that won't take long. One other thing- I used balsa strips as the spacer and they worked very well, easy to cut and remove but very accurate in separating the bulkheads.

Cheers

Peter HK

[Hirilonde]

Then I ran into a problem...the standard saw wanted to cut out through the ply bulkhead

Hmm, I don't recall having that problem. I think what might have helped would be to change the angle of approach of the saw by moving the handle forward. This way the saw would be trying to cut it's way out of the space between the nesting bulkheads instead of into the space. It creates a little bit more splintering this way, but as you round over the corners and tape after the cut it doesn't matter. I never tried using a pull saw so I can't comment on that.

Looks good, now just a lot of finishing

[John Turpin]

Then I ran into a problem...the standard saw wanted to cut out through the ply bulkhead

I had the same problem. I butchered my ply bulkheads during the Big Cut. But, they repaired so easily and perfectly that no one would ever know.