Weighty issues

How to make a Bow, a String or a Set of Arrows. Making equipment & tools for use in Traditional Archery and Bowhunting.

Moderator: Moderators

Post Reply
Message
Author
User avatar
dan76
Posts: 236
Joined: Fri Jan 27, 2006 7:44 pm
Location: maryborough QLD

Weighty issues

#1 Post by dan76 » Thu Jan 22, 2015 9:04 pm

I've just built a longbow for a guy and it's come in a little under what I wanted. Is there an easy way way to increase the draw weight of a bow, I only need to go up about 8# or so. He has a long draw length so I didn't really want to cut down the length of the bow. Any suggestions?

Dan

User avatar
Stickbow Hunter
Supporter
Supporter
Posts: 11637
Joined: Sat Jul 26, 2003 8:33 pm
Location: Maryborough Queensland

Re: Weighty issues

#2 Post by Stickbow Hunter » Thu Jan 22, 2015 9:13 pm

dan76 wrote:Any suggestions?
You probably don't want to hear it but, build another one!

Jeff

User avatar
dan76
Posts: 236
Joined: Fri Jan 27, 2006 7:44 pm
Location: maryborough QLD

Re: Weighty issues

#3 Post by dan76 » Thu Jan 22, 2015 10:22 pm

Yeah your right Jeff I didn't want to hear that. :sad:

User avatar
bigbob
Posts: 4098
Joined: Sat Jul 10, 2010 8:55 pm
Location: sunshine coast

Re: Weighty issues

#4 Post by bigbob » Fri Jan 23, 2015 8:35 am

Jeff's right Dan, maybe a last resort but perhaps not practical would be to lay on another strip of glass. This however even with .030 glass would raise draw weight by a lot more than you're looking for.
nil illigitimo in desperandum carborundum
razorbows.com

Dennis La Varenne
Posts: 1776
Joined: Sun Sep 07, 2003 10:56 pm
Location: Tocumwal, NSW. Australia

Re: Weighty issues

#5 Post by Dennis La Varenne » Wed Feb 18, 2015 1:20 am

Dan76,

Six questions -
1. Is the bow a glassed bow or wood?
2. How long is the bow?
3. What is the owner's draw length?
4. What is the bow's present draw weight?
5. How long is the handle section and
6. Is it rigid?
Dennis La Varénne

Have the courage to argue your beliefs with conviction, but the humility to accept that you may be wrong.

QVIS CVSTODIET IPSOS CVSTODES (Who polices the police?) - DECIMVS IVNIVS IVVENALIS (Juvenal) - Satire VI, lines 347–8

What is the difference between free enterprise capitalism and organised crime?

HOMO LVPVS HOMINIS - Man is his own predator.

Dennis La Varenne
Posts: 1776
Joined: Sun Sep 07, 2003 10:56 pm
Location: Tocumwal, NSW. Australia

Re: Weighty issues

#6 Post by Dennis La Varenne » Wed Feb 18, 2015 1:21 am

Dan76,

Six questions -
1. Is the bow a glassed bow or wood?
2. How long is the bow?
3. What is the owner's draw length?
4. What is the bow's present draw weight?
5. How long is the handle section and
6. Is it rigid?
Dennis La Varénne

Have the courage to argue your beliefs with conviction, but the humility to accept that you may be wrong.

QVIS CVSTODIET IPSOS CVSTODES (Who polices the police?) - DECIMVS IVNIVS IVVENALIS (Juvenal) - Satire VI, lines 347–8

What is the difference between free enterprise capitalism and organised crime?

HOMO LVPVS HOMINIS - Man is his own predator.

User avatar
dan76
Posts: 236
Joined: Fri Jan 27, 2006 7:44 pm
Location: maryborough QLD

Re: Weighty issues

#7 Post by dan76 » Thu Feb 19, 2015 10:02 pm

1: Glass
2: 64 inches
3: 30.5 inches
4: 55#
5: 18 inches
6: It's a hybrid style bow so it bends a little in the fades.

Dennis La Varenne
Posts: 1776
Joined: Sun Sep 07, 2003 10:56 pm
Location: Tocumwal, NSW. Australia

Re: Weighty issues

#8 Post by Dennis La Varenne » Thu Feb 19, 2015 11:18 pm

Dan76,

With that draw length and the length of the bow, it would be a bit too risky to shorten it to increase the weight. If the bow has
come in a little under what I wanted
my suggestion is to leave well enough alone.

Your bow has barely 23 or 24 inches of working limb at each end, and unless the deflex from the handle is considerable, my guess is that you would be asking the bow to assume too much bending load for such short limbs without some kind of failure in the near future.

If the buyer can be encouraged to accept the bow as it is, the loss of performance would be minimal if the draw weight is around the 5lb mark under intended, but arguably, control of the bow will be better with the lower load on the shooter's muscles.

A question from me however - what on earth is a hybrid bow???? I have nevet been able to find a consistent description or picture of one. Everybody who owns or uses one seems to have a different concept of what that is. The term sounds to be indicative of something distinctly lacking in pedigree. :biggrin:
Dennis La Varénne

Have the courage to argue your beliefs with conviction, but the humility to accept that you may be wrong.

QVIS CVSTODIET IPSOS CVSTODES (Who polices the police?) - DECIMVS IVNIVS IVVENALIS (Juvenal) - Satire VI, lines 347–8

What is the difference between free enterprise capitalism and organised crime?

HOMO LVPVS HOMINIS - Man is his own predator.

Post Reply