removing "propeller" from and osage selfbow?

Started by Mike Bolin, December 07, 2021, 02:53:00 PM

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Mike Bolin

When I got ready to start lowering the draw weight on my old Osage selfbow, I noticed the I have quite a bit of propeller in the limbs. Thinking back, I am remembering that my friend told me that as long as the string tracked down the center of the handle, the propeller wasn't an issue. He clarified that with "especially on your first bow." Is this something that I can rectify as I am taking the weight down, or is it a concern at all? Thanks in advance for for the replies!
Bodnik Quick Stick 60", 40#@28"
Osage Selfbow 62", 47#@28
Compton Traditional Bowhunters

Pat B

Generally, a bit of prop twist is OK in a selfbow. It won't hurt anything. The string doesn't have to go down the center of the handle. As long as it crosses the handle it fine. The only reason to reduce twist as you reduce the weight is if the limb thickness in uneven and that causes the twist as the bow is drawn. You can remove natural prop twist with heat and wedges on a form but it really isn't necessary.
Make the most of all that comes and the least of all that goes!
TGMM Family of the Bow

Mad Max

#2
Quote from: Pat B on December 07, 2021, 02:59:27 PM
The only reason to reduce twist as you reduce the weight is if the limb thickness in uneven and that causes the twist as the bow is drawn.

x2 on what he said
If your limb belly is not parallel to the back because you scraped to much on one side of the belly
Maybe your not keeping you limb thickness side to side as you are scraping?
I would rather fail at something above my means, than to succeed at something  beneath my means  
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Pat B

If your bow has natural twist unbraced it's shouldn't be a problem. If it twists as you brace and draw the bow it's uneven limb thickness side to side and should be fixed.
Make the most of all that comes and the least of all that goes!
TGMM Family of the Bow

Flem

Pin nocks are good for a twisty bow. I always figured they had to reduce the lateral torque on the string.

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