Author Topic: First Take Down  (Read 4014 times)

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Offline burtonridr

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First Take Down
« on: October 26, 2019, 04:02:11 pm »
This has been a really fun project, a couple firsts for me and I'm happy with the progress so far. This is the first time making a take down, first time working with billets, first tip using a knife to scrape for final tillering.

Wood: Chokecherry
Draw weight: 38# 43#
Length: 67" 65" (cut down to get a few more lbs and better cast)
Limb profile: Parallel for the first 6" of limb, then tapers to the tips.
Limb width at fades: 1-3/4"
Limb thickness at fades: about 0.72"
Limb width at tip: about 1/2"
Limb thickness at tip: about 0.55"


First set of photos shows the limbs roughed out and fitted with sleeves. I made the sleeves from thick wall stainless steel pipe for the outer, and thin wall chromed pipe of some kind(its springy, might be a shower rod). The outer thick walled pipe was much for my bench vise, it almost broke it, but I got a slight oval shape. The limbs are glued in with gorilla glue, two part epoxy. Couple notes about fitting and glueing; first, it is super important to align the limbs and check them while glueing. Second, it is also very important not to glue the sleeves together. To accomplish this, I test fit everything multiple times and planned out my glue procedure.

1. Glueing inner sleeve
I glued the inner sleeve to its limb first. This had to be done while the inner sleeve was fitted inside of the outter sleeve since the inner one was springy and wanted to expand outward. This actually worked out really well because it expanded inside and fit itself to the inside of the outter sleeve. To keep the two sleeves from glueing together I coated the inside of the outter sleeve first with car wax(turtle wax), then by spraying with pam. I had not issue with the two sticking together.

2. Glueing the outter sleeve
The first thing I had to do was clean all the pam and turtle wax off, so I cleaned it really good with brake parts cleaner. the next part was pretty straight forward, just insert the limb into the sleeve. I had a clamp and string ready to check the limb alignment, which also required carefully inserting the inner sleeve/limb into the outter sleeve(just not all the way, and inner sleeve coated with wax and pam). With the alignment checked and expoxy hardened, I let them sit to cure for 24 hours.
« Last Edit: October 27, 2019, 02:06:06 pm by burtonridr »
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Offline burtonridr

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Re: First Take Down
« Reply #1 on: October 26, 2019, 04:06:52 pm »
Tillering was straight forward, only took maybe about 1" of set. I think this is probably the smoothest drawing, and quietest bow I've built yet. I wish it had a few more pounds of draw weight, but 40lb will be good enough for small deer.... Still I might cut a little off each tip and try to get a few more pounds out of it.
« Last Edit: October 27, 2019, 02:06:24 pm by burtonridr »
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Offline burtonridr

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Re: First Take Down
« Reply #2 on: October 26, 2019, 04:08:25 pm »
I'm leaving to go hunting for the next two weeks, but when I get back I will begin to put the finishing touch on the bow. I will post my progress.  :OK
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Offline Hamish

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Re: First Take Down
« Reply #3 on: October 26, 2019, 06:43:37 pm »
Nice work.

Looks like you used some tubing for the sleeve, more details please?

Offline Selfbowman

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Re: First Take Down
« Reply #4 on: October 26, 2019, 08:06:05 pm »
Looking good. Arvin
Well I'll say!!  Osage is king!!

Offline burtonridr

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Re: First Take Down
« Reply #5 on: October 26, 2019, 09:18:11 pm »
Nice work.

Looks like you used some tubing for the sleeve, more details please?
I made the sleeves from thick wall stainless steel pipe for the outer, and thin wall chromed pipe of some kind(its springy, might be a shower curtain rod)

Looking good. Arvin

Thanks  :OK
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Offline Del the cat

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    • Derek Hutchison Native Wood Self Bows
Re: First Take Down
« Reply #6 on: October 27, 2019, 03:52:00 am »
That looks great :)
Del
Health warning, these posts may contain traces of nut.

Offline backtowood B2W

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Re: First Take Down
« Reply #7 on: October 27, 2019, 04:24:50 am »
tiller looks good to me!
hope to see pics when finished up and FD in hand.
How wide is the is the outer sleeve ?
cheers,
B2W

Offline HH~

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Re: First Take Down
« Reply #8 on: October 27, 2019, 09:55:41 am »
40 will kill any deer.

HH~
MAFA: Makin America Free Again

Long is the road, Hard is the way.

Mother Gue never raised such a foolish child. . . .

Readily will I display the intestinal fortitude required to fight onto the Ranger objective and complete the mission though I be the lone survivor. RLTW

Offline burtonridr

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Re: First Take Down
« Reply #9 on: October 27, 2019, 01:18:10 pm »
Thanks guys  :OK

tiller looks good to me!
hope to see pics when finished up and FD in hand.
How wide is the is the outer sleeve ?
cheers,
B2W

outside dimension of the outter sleeve is 1.5", inner dimension ~1.25"
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Offline burtonridr

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Re: First Take Down
« Reply #10 on: October 27, 2019, 01:31:06 pm »
Had a little more time last night and today to make progress before leaving to go hunting. I cut 1" off of each tip and I'm glad I did. I think the actual draw weight before was about 38lbs, after trimming the length its about 43lb. It feels much much better, and the arrow speed increased a lot. Part of the speed might be the reduction in mass at the tips, either way it shoots really good now.

Here area  few pics of the new tip overlays, they are black walnut from a chunk of wood I had sitting in the back yard.
« Last Edit: October 27, 2019, 02:07:42 pm by burtonridr »
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Offline burtonridr

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Re: First Take Down
« Reply #11 on: October 27, 2019, 01:46:30 pm »
tiller looks good to me!
hope to see pics when finished up and FD in hand.
How wide is the is the outer sleeve ?
cheers,
B2W

Here ya go :OK
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Offline bentstick54

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Re: First Take Down
« Reply #12 on: October 27, 2019, 08:09:23 pm »
I like it, looks good to me. Good job for sure.