Home grown riser design help needed. (See blue print pic!)

[Osagetree]

I am trying to design a riser for an all wood laminated longbow in a flat bow type design... If that makes any sense?

Anyway,,, here is what I am thinking;


 


By the red A,B,C, D, etc. designations in the drawing,,,, what would you suggest I change.

All responses welcome.

Thanks for your time!!!!  

[elk ninja]

C should be longer I think.

[Osagetree]

Elk, do you mean C & D or just C, and if it is just C could you elaborate some?

[Osagetree]

Changed riser thickness to 1 1/4" to make fades transition better and allow for thickness of wood lams.

 

[Shaun]

The fade on a glue up laminated bow needs to be long and thin. The rule of thumb that I read is that it needs to go from translucent thin to 1/4" thick over 4" distance. After the 4" point it can swoop up to whatever thickness. Look on a glass bow for some ideas on this, should be true for all wood bows too.

[elk ninja]

Osage,
Sorry, I did mean c and d.  Very thin with a REAL gradual smooth "swoop".  Shaun's risers are quite a but thinner than mine, but you have to be able to see through the riser at 1/4 inch and make it smooth from there.  It can't really be to thin and slow on that transition.
Hope that is a bit clearer than mud.
Mike

[Sixby]

C and d need to be 8 in imho which is a 19 in riser. the fades need to be tapered from 0 to 1/4 in at 4 in and then evenly taken to riser height. You  really need 8 in fade to do that . Its why so many onepiece longbows have the window cut way up into the fades either to or almost to the 1/4 in. that way you can shorten the riser to 16 in or so.