Nothing new, but I thought I could show how I put this thing together.
First a picture of the bow form using air hose. For this form I had a steel template made with a computer guided laser cutter. The finished form have a 16 inch straight center and then it goes into a true circle curve. For a 68 inch bow the nocks will be 1 inch backset.
Then a picture of the heat box using an old kind of flanged pipe heater. The thermostat is from an old water heater tank.

The laminates to be used are from the back, clear Bjorn glass, Elm parallel flat grain, Stabil-kore, Elm parallel edge grain, Pernambuco riser 15 inches long, Elm taper .003 forward taper that goes into a .004 reverse taper 7 inches before nocks and clear glass.

Awesome Your stack sounds well thought out. Both Elm lams going to be the same thickness?

Flem you asked to see the bowform in use, here it is pumped up on a dry run. When gluing up I use several zip ties on top of metal strip to hold lams in place. Pump up to 20 pounds and let it stay a few minutes, then up to 30 pounds and remove zip ties. I then pump it up to 60 pounds. I use that much because of the steep riser ramps. One time I forgot to remove zip ties, but since they were on top of metal strip it was fine. I remove the barclamp when it is pumped up.

Making a small jump forward. Here it is out of the form ground parallel, Pernabuco riser and Elm flat grain under clear glass. The Bjorn glass is sanded on both sides and is .036 inch thick.
That will be all for  tonite, 01.30 in the morning now. Old Bue need his beauty sleep.

 

That is a seriously nice setup! 

Actually I was curious about the thickness of your belly lam compared to the back lam?

Flem. If you mean the two Elm lams on the back of the riser the flat grain is .090 and the edge grain one is .105.

Nice, Bue..

Quote from: Buemaker on December 22, 2021, 04:54:04 AM
Flem. If you mean the two Elm lams on the back of the riser the flat grain is .090 and the edge grain one is .105.

  Flem...  That means the edge grain one is .015" thicker than the flat grain one...   

Looks like somebody got a new calculator for an early gift ^^^^

I would have guessed the flat grain lam to be the thicker of the two

  Good comeback...   

Looking good so far, Bue. 

Bue, did you loose any backset off the form?

Flem, almost nothing, perhaps 1/16 on each tip.

Some small progress made. I put saran wrap on the handle and tips and glue up riser and tip overlays before gluing them on the bow. Then I can grind the ends so I do not sand into the glass. Handle overlay is glass and a strip of Pernambuco. Tip overlays is 4 pieces of 1/16 inch thick pieces of linen Micarta.

Roughly ground to width, leaving the tips a bit wide for any needed adjustments. Tips just rough.

 
Good job on the pictures Bue...

Lookin good bue!