Sure Brian, I'll give you a brief overview on how this bow came to be.
I started with a 2 X 12 pine board and a leaf spring from a 1953 Willy's pick-up truck. Used the leaf spring for a pattern of sorts and drew out my profile lines on the 2 X 12 board.
Cut out the lines with a band saw.
Then I drilled me some holes for c-clamps to clamp it to my bench.
Drilled some more holes for my straping and bolts.
Bought me some fire hose and and air up kit from an auction site or Binghams??
1/8" Osage - 2" hickory backing - 1/4" walnut board (Ipe in your case) - 2" x 1" x 12" ash riser block - scrap sassafrass for overlays
Took me awhile to figure out the sandwiched riser but I eventualy did somehow?? Once the riser design was a go, I finished all the surfaces for smooth glue lines. Used Titebond II and allied it to all surfaces. Used a hacksaw blade to tooth the glueing surfaces! Dont forget that part!
Slide everything in the form, tightened it all up and shot 60lbs of air into the fire hose and let the glue cure for a couple days.
In tillering it out I was careful to not go throught the 1/8" osage belly. I did at one point tiller from the back but only slighlty where needed. The osage belly ended up being close to 1/16" once completed.
This bow ended up in the mid 40#'s but shoots very well and very fast for the weight. I still shoot it from time to time.
Finished it off with the sassafrass overlays and a 3 color stain method that kinda resembles a curly maple.
Tip of another tri lam I did. They are a lot of fun but, I still like the selfbows best!
Thanks for asking and keep us posted on your endevor!!!!