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Main Boards => The Bowyer's Bench => Topic started by: UnderControl16 on September 08, 2010, 08:40:00 PM

Title: how to make reflex and deflex bows
Post by: UnderControl16 on September 08, 2010, 08:40:00 PM
So i am looking into getting into making bows with reflex and/or deflex either in "selfbows" or in laminates. I was wondering how people go about it and what is also required to make one/how to make the jigs needed. I have been making longbows for two years and shooting for that long so i know that stuff and have the required to make longbows but want to expand now.
Thanks Mo  :campfire:
Title: Re: how to make reflex and deflex bows
Post by: Pat B on September 09, 2010, 12:40:00 AM
Mo, go to Binghamsprojects.com They have all you need to know to get started. Then come back here and get the "professional secrets" from some of the best!
Title: Re: how to make reflex and deflex bows
Post by: walkabout on September 09, 2010, 03:40:00 PM
if you have luck making selfbows you could make a caul to heat in the reflex/deflex.
Title: Re: how to make reflex and deflex bows
Post by: Shakes.602 on September 09, 2010, 09:29:00 PM
Dean Torges is another Fine Bowyer You should Check out!! "Hunting the Bamboo Backed Bow" is an Excellent source of this Great Mans Ideas and Processes!! Money Well Spent!!
Title: Re: how to make reflex and deflex bows
Post by: UnderControl16 on September 09, 2010, 10:12:00 PM
Thanks Pat.
Sorry what is a Caul?
Title: Re: how to make reflex and deflex bows
Post by: walkabout on September 10, 2010, 03:23:00 PM
a caul is basically a form which is used to bend reflex and/or deflex into a bow stave while using a heat gun or other heat method. if you do a search for the word"caul" youll come up with some good examples.
Title: Re: how to make reflex and deflex bows
Post by: John Cooper on September 10, 2010, 03:39:00 PM
I haven't seen many selfbows with a deflex/reflex profile, but reflexing a stave is a good way to add some early draw weight and increase performance.  The d/r profile can be glued in pretty easily using a form like this:
  (http://img.photobucket.com/albums/v701/Squishy_brain/0707001911.jpg)

You spread glue on both sides of the lamination, wrap it in strips of junk bike innertubes, and just clamp it to the form at mid-limb.  You don't need the spring clamps or the c-clamps at the tips. (hindsight!)

~John
Title: Re: how to make reflex and deflex bows
Post by: John Cooper on September 10, 2010, 03:41:00 PM
oh, and Dean Torges' "Hunting the...." video is a GREAT one to watch.
Title: Re: how to make reflex and deflex bows
Post by: Robertfishes on September 10, 2010, 06:15:00 PM
I made this form using a template I got from KennyM   (http://i596.photobucket.com/albums/tt46/Robertfishes/firstlongbowdryrun.jpg)   (http://i596.photobucket.com/albums/tt46/Robertfishes/2ndlongbowalmostdone1.jpg)
Title: Re: how to make reflex and deflex bows
Post by: UnderControl16 on September 10, 2010, 07:12:00 PM
robert i know i alot of people use water pressure to keep the glued pieces togather. how do you get that pressure?
Title: Re: how to make reflex and deflex bows
Post by: Robertfishes on September 10, 2010, 10:39:00 PM
I'm using a 1 1/2" firehose with milled aluminum end plugs from Binghams, one end has a metal valve stem(like a truck tire) that I slowly add 65psi of AIR pressure to, takes about 5 minutes?. I start off with a bike pump and slowly add air, when I hit about 55psi I stop using the hand pump.. I use my air compressor and take it up to 65psi, then form goes into oven...
Title: Re: how to make reflex and deflex bows
Post by: Robertfishes on September 10, 2010, 10:45:00 PM
if you look at the end of the fire hose you can see the hose clamps holding the plugs in place, plugs are slightly hourglass shaped..  (http://i596.photobucket.com/albums/tt46/Robertfishes/recurveBowform.jpg)