Primitive Archer

Main Discussion Area => Bows => Topic started by: arachnid on December 05, 2015, 01:25:16 pm

Title: Best and simplest 3 pc takedown system
Post by: arachnid on December 05, 2015, 01:25:16 pm

Hi guys.

I really want to make myself a 3pc takedown, something very compact I can take in my
backpack for field trips (thats why I`m not going for a 2pc takedown).
I plan on making the limbs out of bamboo backed ipe and I`m shooting for 35-40# tops. It`s going
to be a to-go bow for fun/stumping.

The main challeng is the takedown system and the limb alighnment. I`m in a bit of fear to make
a simple bolt and threaded insert system, becuae it means I have to drill through the bamboo and it might split.

I`d be glad to see some suggestion for an easy-to-make system

Thanks in advance

Dor

Title: Re: Best and simplest 3 pc takedown system
Post by: PatM on December 05, 2015, 02:01:00 pm

If you drill carefully with the appropriate bit you won't have a problem.  You can always temporarily glue a piece of linen or glass cloth in a patch over the to be drilled portion to make sure nothing tears, splits or splinters.
 Here is a link to Marc's page that shows a simple method with a thru bolt system  that eliminates the threaded insert.
http://ironwoodbowyer.com/Composite_Bows.html

Title: Re: Best and simplest 3 pc takedown system
Post by: arachnid on December 05, 2015, 03:14:13 pm

Thanks PatM.

I`d like to see more systems, if there are any....
Oh,any other method to insure limb alighment other then alighment pins?

Title: Re: Best and simplest 3 pc takedown system
Post by: PatM on December 05, 2015, 04:22:10 pm

I'm sure you could just do the same glass/carbon socket used for a two piece and have each limb insert into its own socket.

Title: Re: Best and simplest 3 pc takedown system
Post by: dragonman on December 05, 2015, 04:32:17 pm

heres a 3 peice takedown I made some years ago....it worked pretty good


http://www.primitivearcher.com/smf/index.php/topic,26304.0.html

Title: Re: Best and simplest 3 pc takedown system
Post by: arachnid on December 05, 2015, 04:46:27 pm

Thanks Dragonman... but I didn`t understand how did you finally attached the limbs?

Title: Re: Best and simplest 3 pc takedown system
Post by: arachnid on December 06, 2015, 05:22:28 am

Did anyone tried to make something like the Bob Lee Stabi-lock system?
Seems like a very good system. I`m thinking of making a combo- groove for limb alighnment and bolt+insert to fasten the limb.

Thoughts? Ideas?

Title: Re: Best and simplest 3 pc takedown system
Post by: PatM on December 06, 2015, 07:50:14 am

I thought you were  already worried about the bolts and pins without adding more stuff?

Title: Re: Best and simplest 3 pc takedown system
Post by: arachnid on December 06, 2015, 07:59:58 am

What I ment is, instead of using a pin for alignment I'll dig a 1/2" wide groove (using a chisel) in the riser pad. Then, I'll glue a 1/2" wide square piece of wood to the limb. The square piece will be inserted to the groove for proper alignment. The fastening will be done with 1 bolt.
It's just seems to be a better solution for me, given my bad experience with alignment pins... My drill sucks...

Title: Re: Best and simplest 3 pc takedown system
Post by: PatM on December 06, 2015, 08:35:15 am

Sounds like you're replacing one complexity with an even more complex one.

Title: Re: Best and simplest 3 pc takedown system
Post by: PEARL DRUMS on December 06, 2015, 08:48:25 am

Put an overlay on the end of your limb the bolt goes through. Just like a string overlay. It wont hurt the bamboo at all and you will have a flat spot for the bezel and washer to sit on.