That grey material looks a lot like PC-7 an epoxy paste to my eye. Trying to repair someone else's failed repair is dicey in my experience. JMO

Some similarities between our unhealthy patients.

[attachment=1]

Quote from: onetone on June 02, 2021, 10:21:33 AM
That grey material looks a lot like PC-7 an epoxy paste to my eye. Trying to repair someone else's failed repair is dicey in my experience. JMO

No repairs have been done, it's a clean break 
Look at it this way black phenolic is grey until finished

I would cut the limbs off and bolt them on a new riser .

Quote99% of the glue joint is some kind of plastic Bakelite or something

and the rest of the crossection looks like wood veneer lams on the back?  what is the yellowish layer on the back surface? Looks like it broke clean (not like glass, although it is hard to tell from the pic orientation)  If so, I would consider a glass  lam overlay in the sight window area, as the break seems to have started somewhwere, and I see no sign of shear  failure in the bakelite/phenolic

This is the Back, looks just like the fiberglass on the limbs.
I can put white glass overlays on the back and belly of the riser, also both sides of the site window, The site window is cut at least 1/4" past center.

Oldrawhide42 I was going to glue it back together anyway and map out the side profile on paper.
I still may make a new T/D riser

QuoteThe site window is cut at least 1/4" past center

And maybe the index finger cut a little deep?  hard to tell from the pic

Paper Phenolic  Is what some other people say for the black

I did about 12 dry runs to get it to line up like I wanted, reliving areas mostly on the maple? and rosewood? to get it to fit good. The arrow rest threaded hole helped to line it up.


Had to pin it with 1/4" fiberglass pins to keep it in place.
Wax on the bolt, maybe it will come out
I used Devcon 2 ton epoxy I already had.
I had to cut this piece off, it was cracked and crooked, that was the way to go.


SOME of Harold Groves Prestressed and Dana Stressed bows are knowed to have limb twist.
I'm going to glue fiberglass on the back and belly of the site window 1st and I will string it.

No limb twist


made some wood forms


some packing foam on the forms


white fiberglass glued to back and belly of site window

Awesome job, Mark....

I knowed ya could do it..

Lookin great!!

I thought it was gonna be a lefty? 

Good job Max.

Thank you thank you thank you

Quote from: kennym on June 10, 2021, 03:45:18 PM
Lookin great!!

I thought it was gonna be a lefty? 

I'm going to try to shoot a righty lefty and a righty righty and see how it works

Be sure to wear a helmet and athletic cup.     

It does look good, Mark. What's the draw weight?

29#@28"
alot of target bows back in the day were low poundage

With the right arrows she should be a dream to shoot.

Those two 1/4" fiberglass pins + the Devcon 2 ton epoxy will hold that 29# real easy....

  Nice work, Max... 

I'm surprised a certain person or two didn't say anything about those two big funny looking titties sticking out of that riser...  I guess it is accepted because it was made by a prominent bow maker...     A bowmaker who knew that adding weight far out on the ends of the riser would help to stabilize the bow while shooting...  Imagine that...