I am new to making bows and am currently in the process of making a longbow with a relatively "medium" reflex/deflex design. I am looking for recommendations on how much curve to build into the press. Are there any major considerations or is the shape a matter of preference? I'm not looking for a bow that is exceptionally fast, but I do want it to be pleasant to shoot with a minimum of hand shock. Thanks in advance . . . M
You can buy plans from Binghams Archery, or I think KennyM on this site has them. Another thing people do is trace/copy a proven design then tweek it to their liking.
I did a bunch of bbos years ago and found I preferred no more than 2" of total deflex (from back of arrow pass to most shallow), 1/2" reflex net at the string grooves. I've owned a Super Shrew and built 2 r/d glass bows, one my form another a KennyM. Found about the same in glass. I like the r/d to run the whole limb, like two semi-circles, not concentrated on the outer limb or not flat in the handle. Seems like a real good rule of thumb is to let the wide wood work (inner limb) and use the r/d to stiffen the mid limb (versus stack height or width within reason) and keep the outer limb as narrow and stiff as practical.
I basically agree with what is said above. Nothing radical, just smooth sweeping curves. When you try to curl those tips for what looks like added performance you end up in trouble unless you tinker with things to make it work right. That may become interesting to you eventually but it cost money and time to get it right unless you do what TFolts said and make an exact copy of a bow you can get your hands on and put some calipers to it precisely.
That helps a lot. I'm using this first bow to go through the process from start to finish and then adjust as needed from there. This seems like it could be an endeavor that is quite challenging, requiring "updates" to the design as experience is gained.
I appreciate all of the responses . . . thanks. MK