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Main Boards => The Bowyer's Bench => Topic started by: Zradix on January 02, 2014, 12:53:00 AM

Title: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 02, 2014, 12:53:00 AM
Thanks for the help guys.

Guess I'll get Christmas again Fri morn...

 (http://i748.photobucket.com/albums/xx121/Zradix/Tri%20lam%201/CIMG0002.jpg)
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 02, 2014, 01:39:00 AM
Sure am glad the lams came in at 1.5"
Wanted to end up at 1.25"...and stupidly ordered that.

Kenny is the man!
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Bowjunkie on January 02, 2014, 05:52:00 AM
Nice profile.
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Roy from Pa on January 02, 2014, 06:34:00 AM
Looks nice, and ya sure pumped the deflex / reflex into that..
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 02, 2014, 08:35:00 AM
we'll see how it goes.....   :rolleyes:
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Mike Most on January 02, 2014, 08:49:00 AM
:bigsmyl:    :bigsmyl:
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Buemaker on January 02, 2014, 08:59:00 AM
Looking Good and it looks like you have a solid bow form. Bue--.   :)
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 03, 2014, 12:46:00 PM
It seems to be solid enough.

Just took it out of the form and trimmed some of the boogers off...

(http://i748.photobucket.com/albums/xx121/Zradix/Tri%20lam%201/CIMG0001.jpg)
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: kennym on January 03, 2014, 12:56:00 PM
Cool form!! Roy wants one now I bet!!   :thumbsup:
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Roy from Pa on January 03, 2014, 01:02:00 PM
Very nice, John...

McKenzie, ah never mind:)
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: kennym on January 03, 2014, 01:03:00 PM
:)
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 03, 2014, 01:24:00 PM
Thanks for the lam Kenny.    :thumbsup:

I was surprised it lost more curves at the tips than it did in the middle...thought it would go the other way around..oops

My bbo lost more in the center than the tips.
I thought it was because of the wood being thicker there.
Thought the same thing would happen on this tri lam...guess not..
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 03, 2014, 01:27:00 PM
You guys have any tricks for pulling off masking tape?

First time I've used it on a bow.

I just pulled up some where I'm going to glue the riser/handle on.

I pulled toward the tips, but I still got a few very small splinters that wanted to pull up and run. No biggie having it happen here.

..just mostly worried about taking the tape off the back and having splinters pull up...

Thanks   :thumbsup:
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Roy from Pa on January 03, 2014, 01:58:00 PM
Heat the tape lightly with a heat gun and it will pull right off...
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 03, 2014, 02:05:00 PM
sweet!

Thanks Roy!
  :notworthy:
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: PEARL DRUMS on January 03, 2014, 02:15:00 PM
Have fun tillering that bugger out dude! It scares me and I aint skeered a' much!
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 03, 2014, 02:16:00 PM
Go big or go home! ...on the outside

  :eek:    :scared:    :confused:    :confused:  ....me on the inside...lol
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Bob at Work on January 03, 2014, 06:27:00 PM
looks great...but I'm glad I'm not the one tillering it.   :)   Specs on the form...?  Looks like angle iron and rectangular tubing...cool idea.
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 03, 2014, 07:29:00 PM
Hi Bob,

I don't have the layout specs of the form here with me.
The form itself is steel.
The base is 8"x2" 1/4" wall
The pressure points are angle of 5/16" or 1/4"
The tube you can see thru is some 2x4x3/16".

For the bbo I built I didn't need the extra 2x4 tube as I was able to use spring clamps every where but the center and dips.

This time I needed to make space for c-clamps to fit under the bow and I didn't have any long enough for the center.

Using the tube for spacers worked nice since the clamps could fit right inside them.

Everything is just tack welded for easy removal.
I keep telling myself I should drill and tap the base...but I just keep not doing it...lol

The base was given to me by a good bud, and the other parts are just some scraps from previous projects.

I'll post the specs when I get back to work tomorrow.
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Black Mockingbird on January 03, 2014, 07:38:00 PM
QuoteOriginally posted by PEARL DRUMS:
Have fun tillering that bugger out dude! It scares me and I aint skeered a' much!
Nah....that's easy peasy   :knothead:
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Bob at Work on January 03, 2014, 07:50:00 PM
Zradix - thanks for the information... looking forward to the specs.  I teach a couple of high school welding classes and the kids are always looking for projects...    :thumbsup:
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 03, 2014, 07:57:00 PM
No prob Bob.
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 03, 2014, 08:06:00 PM
QuoteOriginally posted by Black Mockingbird:
 
QuoteOriginally posted by PEARL DRUMS:
Have fun tillering that bugger out dude! It scares me and I aint skeered a' much!
Nah....that's easy peasy     :knothead:   [/b]
you know..it might not be THAT bad.
I'm not positive I can do it..BUT
I couldn't help myself..
I had a barrel that fit in for a riser pretty good and flexed the bow just a bit..just an inch or 2.

Looked like it just might come around in the right places...we'll see..

First I gotta get a handle on the thing...my least favorite part of the build...just don't have good tools for that...or a steady hand.

The plan is to try to layer a few 3/16" thick pieces in with glue and c-clamps.
Worried doing so might try to straighten out the bow in the handle area. Might try to do it on the glue up jig so I can hold down the dips. If so, i'll pad the heck outta the back there.
Just gotta try it and see how it goes....maybe just glue on a few pieces at a time..I dunno
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 04, 2014, 05:17:00 PM
Here ya go Bob.
Sorry it took so long.
I hope this makes sense.
Might wanna wait till after this one is done or broke before ya start...lol. This is an experiment for me and my 1st tri...

The angles on the ends are 5" high
The center angle is 3" high
The mid pads are .5" high

Now, Each of the above pieces are set on the 2x4 tube. The ends have the tube set tall, the mid limb pads and the center have the tube set low.

So the final heights off the base are..
Ends= 9"
Mid limbs= 2.5"
Center 5"

Spacing is...
center to center of mid limb pad=14"
center of pads to ends =15"
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Bob at Work on January 04, 2014, 06:22:00 PM
cool...thanks!

I'll be watching your progress on the bow!
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 07, 2014, 12:20:00 PM
well my idea for the lamed riser didn't pan out.   :rolleyes:  

Have a riser block coming from Kenny.
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 09, 2014, 11:43:00 PM
Got the new block from Kenny today...boy that was fast!

Thanks Kenny!   :thumbsup:

(http://i748.photobucket.com/albums/xx121/Zradix/Tri%20lam%201/CIMG0001-1.jpg)
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 17, 2014, 07:54:00 AM
...kaboom...nuts

  :(
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Roy from Pa on January 17, 2014, 07:57:00 AM
What happened?
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 17, 2014, 07:59:00 AM
Things were looking really nice on the very taught string with the tips moving 9"....maybe a little more
Moved it up to about a 2" brace string.
flexed the tips down about 4" and BOOM!
Didn't see any signs of a hinge at all.
The worst thing is I have no idea WHY.
The hickory backing broke almost straight across in 2 places 9" or so apart...about mid limb.
The walnut core "tore" diagonally in between the breaks.
The osage belly splintered a little but not much.
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Roy from Pa on January 17, 2014, 08:08:00 AM
That doesn't sound right breaking at 4 inches. Ya got pictures, John?
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 17, 2014, 08:11:00 AM
I think I must have just been trying to get the mid limbs to move too far. They had to come around a lot just to get it to brace.

I think I must've created a hinge though it looked about perfect to my eyes. The limbs were flexing slightly at the fades. Tips were barely flexing. The midlimbs were almost straight at brace. Basically at brace  the limbs looked darn near straight off the curved riser section with just a hint of the tips pointing toward the back.I was just starting to get thinking..this just might work out..LOL
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Zradix on January 17, 2014, 08:14:00 AM
nah Roy..no pics.
I could post one of the break later if you're into horror pics...lol
Title: Re: Glued up 1st tri lam..Thanks for the help
Post by: Roy from Pa on January 17, 2014, 09:04:00 AM
Relax, it happens to the best of us:) Just start another one...