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Anatomy of the LIF Hunting Riser

PostPosted: Fri Feb 24, 2012 10:29 am
by Bobmeister
I have been asked to build two 14" risers and if I could do a build along at the same time. It sounded fun so here we go.... :)
These will be made from Cocobolo, Bocote, Black Phenolic and Maple
The risers will be 14" overall in length with 18-1/4 degree limb beds. This will give them an approximate 1.8# gain over limbs rated on a 17" riser.

Here are all the materials gathered up
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Here the pieces cut on the table saw to make the riser block sammich (wood is the bread and canvas phenolic is the meat)
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All glue surfaces are scratched up with a hacksaw blade To help with the mechanical bond
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I hate it when you go to clamp your parts together and they start sliding all over the place because of the Bow-Snot,so I put a 1/4" dowel in the corners that will be trimmed off.
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Epoxy applied and all clamped together. I then put them in the hot box with two 60 watt light bulbs this will keep them at about 80 degrees to set up over night.
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Re: Anatomy of the LIF Hunting Riser

PostPosted: Fri Feb 24, 2012 11:27 am
by Trux
Thanks for the build along- looking forward to seeing your progression and the finished riser.

Re: Anatomy of the LIF Hunting Riser

PostPosted: Fri Feb 24, 2012 12:50 pm
by Bradford
Looking for information on LIF bows is what led me to this site!

I like the dowel idea.. I to hate the wood sliding around and it always seems to do so...

14" seems like a really small handle.. what is the advantage to such a small riser.. or is it just a personal prefrence?

Re: Anatomy of the LIF Hunting Riser

PostPosted: Sat Feb 25, 2012 6:50 pm
by Bobmeister
Bradford wrote:14" seems like a really small handle.. what is the advantage to such a small riser.. or is it just a personal prefrence?

The title says it all ( Hunting Riser), a 14" riser will make a 55", 57", or 59" bow.


Got the blocks out of the oven and ran them thru the drum sander and then squared up the belly side.
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Next I need to cut all of the accent pieces that will be laid up in the block.This is my lam ripping jig for the bandsaw, 1/4 turn on the red nob = .012" Image

Here are all the laminations ground to there various thickness's
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Re: Anatomy of the LIF Hunting Riser

PostPosted: Sat Feb 25, 2012 7:03 pm
by Bobmeister
Now I want to set up the radius jig on the bandsaw and double check for squareImage

Came out good glad that part is done
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cleaning the kurf marks off the cut, then I will dry fit the pieces together
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Re: Anatomy of the LIF Hunting Riser

PostPosted: Sat Feb 25, 2012 7:22 pm
by MOUNTER
Lookin good Bob!!! I'm always impressed by your top quality work!!!

Re: Anatomy of the LIF Hunting Riser

PostPosted: Sat Feb 25, 2012 7:44 pm
by Bobmeister
I took my time and got a good fit and then double checked the dry fit.
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Going to use the wooden dowel thing again to keep things from sliding around
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Always DO THIS before-
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you do this
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All clamped tight ready to put in the box at 80 degrees over night.
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Re: Anatomy of the LIF Hunting Riser

PostPosted: Sat Feb 25, 2012 8:31 pm
by Jess Stuart
Nice job as always Bobmiester, thanks for taking us along.

Re: Anatomy of the LIF Hunting Riser

PostPosted: Sun Feb 26, 2012 10:44 am
by Jumper
Man Bob, your work looks so precise compared to mine :oops:

I love the grain pattern in those pieces of Bacote and Cocobolo. These risers are going to be beautiful. The Black Max limbs mediums are on order and a buddy has tied up the Flemish twist strings also! Like waiting on Christmas :D

Re: Anatomy of the LIF Hunting Riser

PostPosted: Mon Feb 27, 2012 10:00 am
by Bobmeister
Inspecting the blocks after glue up. So far so good....
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Now I will grind them to clean off the excess glue and to the desired thickness (1.75")
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Next I will layout the profile with my template
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Trimming the fat off the ends with a miter saw
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