I plan to make a 62"reflex/deflex bow. I have seen them about 1.25" wise tapered to the tip and that's how I plan to make one. Bingham's directions are for wider limbs. I plan to use the action bamboo and any guess I would make would probably be disastrous since this will be my 2nd bow. Any help would really be appreciated.
I forgot to add that I want the bow to be about 50 pounds......
It's kind of hard to give you real sound advice because it depends on how radical of a r/d design you build. I'm not familiar with the Bingham's r/d design.
Here's the recipe for a 62" mild r/d I built about a year ago that might help you out, but you might need to build one and then adjust accordingly for your given design.
Brown glass back - 0.040
Hard maple 0.002 taper - 0.090 butt thickness
Hard maple 0.002 taper - 0.090 butt thickness
Hard maple parallel - 0.060
Hard maple parallel - 0.060
Brown glass belley - 0.040
Total stack = 0.380
Total wood = 0.300
The bow was 1 3/8" wide at the fadeouts and came in at 47# @ 28".
(http://i954.photobucket.com/albums/ae23/jsweka/ReflexDeflex/CAM_2095.jpg)
(http://i954.photobucket.com/albums/ae23/jsweka/ReflexDeflex/CAM_2101.jpg)
If your's comes out heavy, you can trap the back (or belley) to reduce weight. I once made one that came in heavy and I dropped it 10# by trapping.
47# is on the heavy side for you, isn't it Johnny Boy? :)
I'd say go with Jsweka's advice.
But, he has .004 total taper and I think Binghams has .002
I'd call them and ask their recommendation, they will help you out, and they have more data on their design than anyone! :)
I thought that design would have a lot to do with it. Your bow looks just about how I envisioned mine to look. Thanks for the info. I'll be sure to keep this stuck away in my files.
QuoteOriginally posted by Roy from Pa:
47# is on the heavy side for you, isn't it Johnny Boy? :)
Ha ha...That was my first r/d and I missed weight a bit, but my son, Monkeyboy, inherited his Dad's strength and is shooting it now.
(http://i954.photobucket.com/albums/ae23/jsweka/ReflexDeflex/CAM_2094.jpg)
I second that assuming you are building a .04 taper rig. I build one with a little more pronounced RD and .380 would put you real close to 50# on mine. Thats with a 21" riser and a very narrow limb profile with 6" tip wedges.
I second that assuming you are building a .04 taper rig. I build one with a little more pronounced RD and .380 would put you real close to 50# on mine. Thats with a 21" riser and a very narrow limb profile with 6" tip wedges.
You guys are great, thanks for the info. I hope to be starting this soon.