Jaysen's V12 -- 'Lil Bit' of everything fun

[Jaysen]

Good lord almighty. Fast epoxy is fast!

I really like the silica mix. I was able to get a nice "wax" to fill holes. Worked into the holes very smooth and with no sag that will require more than a sand and touch of fairing mix. Did lose most of a 3oz mix to of melting my hand when it went off in the bowl ("self, did we take up smoking?" "No we did not." "Then what is the burning sensation in our left and the this smiley vapor in the breeze from?").

Going to add a touch of slow to it on the next batch to get more working time.

[terrulian]

Fuzz has the right question; if you're going to toss it anyway why not give it a try?
But after considering it, I think you're right about it being quite a piece of 3D geometry to come up with a kerf design. What you could do is, like Fuzz says, borrow a skilsaw and put some kerfs by eyeballing the high spots. When it becomes flexible enough to make flat with some bricks on top, wet out the surface, then mix up some slightly thicker goop with wood flour, spread to make sure the voids are filled, then cover with a piece of cloth and wet it out. Put a piece of Visqueen on top and then a flat board and lots of weight and then cross your fingers.

On the other hand, like the old song says, doctor says you'll get better but you'll never get well.

It's a real drag you don't have enough plywood but if that process doesn't work I think I'd bite the bullet on this one and start over.

[Jaysen]

I really like that silica stuff. How is it for strength?

I thought about Fuzz and Tony prodding and said "why not?" Went inside and thought about how to do the mapping for kerfs. 3D scanner and surface mapping would be nice. Now that I live here, no access. A 3 axis CAM on sense mode with a pressure sensor... nope. Flip it and rock to find axial line! Low tech solution.

Went inside and flipped it. No corner is touching thing rocks no matter what edge you press. That means it's worse than a cone... it's a spheroid deform. I had to try real hard to fork it up that bad.

I could probably get it straight in one direction. Easiest will be on the vertical (long). Problem is, that still has me going in circles. To straighten it out on the horizontal will require kerfs along vertical axis. I'm still trying to see how I can figure those kerfs out.

Makes me wish for my old jointer and planner...

[Jaysen]

And I'm sold on fast. Excluding my "medium" mix, all the epoxy I put on is "dry" enough for wet on wet. Not quite hard enough to sand but clearly a move in the right direction. I need to tweak the medium mix to learn the ratios for various temps...

[terrulian]

Don't worry about silica for strength.

[Jaysen]

Just looked up the chart from Peter. I may start using this stuff for more things. I really like the consistency. I think I'll try it for fillets on the seats and skeg. I'll stick with the wood flour for gluing them though.

[Fuzz]

I got it! Let me help you out Tell SWMBO you built her a new fancy snack tray for when the men are over drinking rum, pondering boats and solving the rest of the worlds problems

[Jaysen]

Snack tray? That would imply a few things:
1. She gets snack for us.
2. She lets them come in the house
3. She doesn't run us all off with a broom.

I think I'm going to focus on the cassette part if the lifting rudder for now. Then I'll figure out the blade once that's down. Why deal with it today when it will be just as difficult to deal with later?

[pee wee]

Went inside and thought about how to do the mapping for kerfs. 3D scanner and surface mapping would be nice. Now that I live here, no access. A 3 axis CAM on sense mode with a pressure sensor... nope. Flip it and rock to find axial line! Low tech solution.
Went inside and flipped it. No corner is touching thing rocks no matter what edge you press. That means it's worse than a cone... it's a spheroid deform. I had to try real hard to fork it up that bad.
I could probably get it straight in one direction. Easiest will be on the vertical (long). Problem is, that still has me going in circles. To straighten it out on the horizontal will require kerfs along vertical axis. I'm still trying to see how I can figure those kerfs out.

Makes me wish for my old jointer and planner...

Methinks you're over complicating this. If you can get the long axis close to straight that's probably all you need to worry about. Don't forget you can always grind down with coarse grit, and build up with scraps and epoxy. Then again, if you want to just be done with it, build a new one and be more careful!

[Jaysen]

Of course I am. That's the way I do things.

I'm still not sure I'm going to give up on it yet. It's still sitting on the table watching us eat. I'm actually thinking that I could use it as a core by just grinding it flat and then wrapping with glass. Much as you suggested.

Still not sure how this shape turns into a lifting rudder though. Still thinking that through.