Bamboo Backing

gables · April 07, 2009, 02:33:00 PM

I am working up my materials list and process for my 3rd laimnated bow. This nex bow will be the first to build with lams I have ground myself. I want to put a natural bamoo backing slat on it with minimal finishing of the nodes (kept slightly raised). I have built my previous bows back down against my form with the inflated hose. How do I deal with the radius issue with natural bamboo backing? Do I need to build a form where I laminate it belly down against the form?

Moen · April 07, 2009, 03:56:00 PM

If i understand you right, you dont need to make a new form. I have glued lots of boobacked bows with "firehose". But I recommend you to use tape on the laminates.

Pat B · April 07, 2009, 04:00:00 PM

The air hose should contour around the uneven boo back with no problem. Like Moen said tape all the compnents together first. Keep an eye on the pressed bow as it cures to be sure it doesn't slip from one side or the other.

No-sage · April 07, 2009, 05:21:00 PM

You'll have to make another form so you can use it with the nodes up against the hose, belly down on the form.

If you want to make a one sided form, use can use clamps of innertube bands. I use the bands cut from bicycle tubes.

dave_570 · April 07, 2009, 05:34:00 PM

HI, this is my first post here. Do u have a
template of ur form.??? I will post some pics here
soon. showing how i make boo backed reflex-deflex.
ur method looks good.

dave_570 · April 07, 2009, 05:44:00 PM

Here's some pics.....

Muzlnbo · April 07, 2009, 05:44:00 PM

No-Sage,

I like the form. Is that a 2x6 and how far apart are your dowels for the bands. They look about an inch apart.

"Follow the Red Road"

dave_570 · April 07, 2009, 05:49:00 PM

Here's another.....http://s675.photobucket.com/albums/vv120/dave_570/?action=view¤t=Picture002.jpg" target="_blank">

http://i675.photobucket.com/albums/vv120/dave_570/Picture002.jpg" border="0" alt="gluing">

dave_570 · April 07, 2009, 05:50:00 PM

sorry about that...i'm having a little trouble...
i'll get it right.....

dave_570 · April 07, 2009, 05:54:00 PM

Ok i think i got it now....try this one....

dave_570 · April 07, 2009, 05:57:00 PM

The result...
of the last 2 posts...

Muzlnbo · April 07, 2009, 06:09:00 PM

That's a nice looking bow Dave. Great work!!

"Follow the Red Road"

No-sage · April 07, 2009, 06:22:00 PM

I don't have a template.

The dowels are 1 1/2" apart. I use 2 clamps at the deepest part of the deflex to hold everything down, then after all the bands are on, I don't need the clamps anymore.

dave_570 · April 07, 2009, 09:12:00 PM

Thanks Muzinbo, that's the accumlitive effort
of a number of years and TONS of broken staves and
experiments. That's all I make (reflex-deflex).
P.S I can't spell woth a darn , LOL!!

dave_570 · April 07, 2009, 09:14:00 PM

BTW, the arrows in that pic are Martha Stwart
tomato stakes !!!!

dave_570 · April 07, 2009, 09:26:00 PM

PATb.......if u wrap ur bow tight wirh stretch
wrap before u close the form. it will help
keep eveything together tight. u can see my post
further down....how i use the stretch wrap. Now I
use Box Grip 100 and ir has about a 30 min work time
before it starts to set so u have plenty of time to
do the wrapping. just a working solution....

dave_570 · April 07, 2009, 09:27:00 PM

Sorry...that's Bow Grip 100 not Box grip.....

Pat B · April 08, 2009, 12:02:00 AM

Anything that will hold your lams together while you set the press up and get the hose inflated will work. I've never used stretch wrap and have only made one glass bow but having that "extra hand" really makes a difference in the end.