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Cresting/fletching wrap jig
hedgeapple:
I made this jig about a year ago when I thought I'd like to crest my arrows. While I rarely crest arrows, I have found this jig to great for wrapping thread around fletchings. I've considered doing a build-along for the jig and after several positive comments at Moon Tree gathering and a couple pm's about a picture Blackhawk post, I finally decided to it.
Here's the picture of my first jig.
hedgeapple:
I've made 3 more of these jigs that I'll be bring to the Classic. Here's the specs:
They are made from a 1x4 (3/4x3 3 1/2) oak board.
The base is 20"
The dowel upright is 4 1/2"
The arrow shaft upright is 4"
The dowel is 3/4" That about as smal as you can go. You could 7//8 or 1". I used 3/4" because I had them and washers that would fit them.
On the 4 1/2" dowel upright piece find the center and measure down an inch. This will be the center for the 3/4" hole that the dowel will sping in.
After you drill the 3/4" hole allign this piece with the 4" arrow shaft upright, lower your 3/4" drill bit thru the hole to score the arrow rest upright. This will center your dowel and the arrow shaft.
hedgeapple:
Now drill a 3/8" hole using that mark as center. If you use larger shafts drill a larger hole to accomodate them. Mark the top of this board 3/8" on both sides of the center of the board/hole. The draw a line from those marks to the edge of the hole to creat a triangle arrow shaft rest.
hedgeapple:
Your frame is now cut out. It's time for the hard part, drilling holes in the dowel to accomodate the arrow nock, a pen in the hole to clip on the arrow nock and holes for the carter pens to hold the dowel in place.
Cut a piece of dowel 4" long.
Drilling a hole in the center of the dowel is the most challenging part of building this jig. I made a jig to hold the dowel with a clamp to help insure stability while I was drilling the hole. To make the jig drill a 3/4" hole length wise thru a 2/4 that is 3" long. Then cut it in half thru the center of the whole.
Finding the center of a dowel is a tricky part for me. The center of a 3/4" dowel is 3/8". I'd put a dot at 3/8" as close to center is I could eye ball. Then I would draw a series of line across the end of the dowel again eye balling as close to center as possible. I would end up with a dot in the center where all (most) of the lines crossed. Use a punch as a starter hole for a small drill bit. Then clamp the dowel in the jig you just made. Use the small drill hole to line up a 3/8" bit. Drill a 1 1/8" hole thru the end of the dowel.
hedgeapple:
A 3/8" hole in the end of the dowel will not accomodate some nocks. The allow for larger nocks, I taper the openning of the hole with a drill grinding bit that I tapered from a conical bit using my grinder. I put the conical bit in a drill, turn on the grinder with the drill turn one direction and the grinder turning the opposite direction. Once the taper bit was made, I used it to bore out a tape in the 3/8" hole so my largest nock would slide into the hole.
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