In this how-to I describe how I make my 3D arrows. I am not saying this is the best way, I am just writing down how I make them. Hopefully you will find one or more useful ideas. Like Hubert, my German friend, shouted when shooting my set-up for the first time: “Those arrows fly like laser beams!” And indeed, I found my wooden arrows to fly very nice and I even won several big tournaments with them in The Netherlands and Belgium. Of course you can use this build-along also to make your wooden hunting arrows. The only thing you might want to change is your FOC.
The shafts: There are some reasons why I shoot with woodies. First of all, I simply love woodies! Easy to tune because they come in steps of 5 lbs. But there are also tournaments where it is wood only. And, If you want to shoot in the Longbow class, you always have to shoot with wooden arrows and real feathers. So carbon or aluminum is not allowed. But I found out that wood gives me all I want: the right weight (around 9,5 gpp) and the right FOC (around the 9 %)
At the moment I use Sitka Spruce which weights app. between 10 and 10,5 grains/inch. Sitka proved to be very strong and my supplier hand spines them, (53 lbs +/- 1 lb) weights them (all between 325 and 340 grains) and checks if they are all straight. For all this I pay only € 2,40 per shaft, not bad, is it?
Weight and speed Some 3D archers like to use ultra low-weight arrows, even as low as 8gpp. They do so because they want to gain speed and a flat trajectory. First of all, such low weights will shorten the life of your precious bow dramatically. Second, your setup will be very sensible, not forgiving and waiting for the slightest mistake in your release and/or form. Besides of that: ultra light arrows are also very sensitive for small branches, leaves and wind.
I found out that arrows around the 9,5 gpp just fly great. They are much more forgiving and less nervous and: your bow will live much longer.
Skinny StringsI think that a better way of gaining some speed is move over to a skinny string. It’s my rule of thumb that for every strand less you’ll gain app. 1 fps in speed. So when you move over from 16 strands to a 6 strands string you can expect a gain of speed of 10 fps.
Modern hybrids are very fast from nature. On my Cari-Bow Peregrine I have a 6 strands ultra skinny SBD string and I shoot around the 9,5 gpp. This results in an arrow speed of around the 195 fps. That’s fast enough for me!
I found out that SBD (Silent But Deadly) skinny strings are just about perfect. They definitely are the best custom-strings I ever shot and added to that: SBD is sponsor at Tradgang and they are a pleasure to deal with!
L-FOC I guess you all know what E-FOC is; many hunters are looking for more impact and thus high or extreme high FOC’s, even above the 25% if possible. As a 3D archer we are looking for the opposite, a FOC between the 7 and 11% gives us a trajectory which is very flat. We need this, because here in Europe the distances become bigger and bigger, 50 meter (55 yards) has become quite normal on more and more tournaments. This year I was on a tournament wereyou could win a special price for the distance shot…It was a bear standing at 65 meters (71 yards) and I shot it right in the inner kill with my first arrow. Perhaps I was a bit lucky, but hey, I trained for this! I actually train at such distances and believe me; a FOC of 9% or 30% makes a big difference at such distances. At 20 yards you’ll hardly notice any difference. We also have to shoot trough holes in the branches. For all this we need a flat trajectory, which is achieved whit a Low FOC (L-FOC). I found out that a standard 100 grains field point exactly gives me the FOC I want. This has also to do with the weight of the shaft and the cresting of course. All my arrows are around the 9,25%. For me, a FOC around the 9% is just about perfect. By the way, the word L-FOC came out my twisted mind…
I always calculate the FOC based upon the full length of the shaft and not BOP (back of point) length. My shafts are 0,6 inch in the point; I add that to the length of the balance point after measuring it from BOP. But some of you might calculate this different then I do.
There are three ways:
Using the actual shaft length as I do (9.25% FOC in my case)
Using the BOP length (10,5% FOC in my case)
Using the total length, inclusive point. (7,4% FOC) in my case)
If you don’t know how to calculate FOC, google it or do a search here.
Anyhow, no matter how you calculate, there aren’t many weights to choose from: most field points for an 11/32 shaft come in 100 and 125 grains only and some come also in 80 grains. 125 is definitely too high, and 80 is definitely too low. That’s another way of looking at it…
Matching shaft and bow Well, there is a lot written about this, and experienced archers know what to use. Of course the best way is to buy a test –set in different spine values. If you are not so experienced, and are not in form yet, it will be hard to shoot, bare shaft or paper tune consequently. In this case I can recommend Stu Millers Dynamic Spine Calculator. You can download it for free from the internet and it will give you a great starting point. Look at it as tuning your bow on your computer, but remember, rubbish in means rubbish out. This is how it looks like for my set-up. As you can see my arrows are around the 9,5 gpp, have a FOC around the 9% and the dynamic spine matches that of my bow. Great stuff!
Stu’s calculator also gives you a good understanding what happens if you change things in your setup.
So what do we need? - Time, when you are in a hurry, pick another day!
- A piece of foam to stick your arrows in when drying
- Shafts
- Field points
- The right size nocks
- fletching
- A paper towel
- A graphite pencil
- paper tape
- A tapering and/or compressing tool
- A small miter saw or something to cut your arrows on length
- Saunders fetch-tite
- AA two compounds epoxy
- Alcohol at least 70%
- Steel wool size 00
- Tung Oil
- Turpentine
- Primer
- Some lacquer
- White Spirit
- A pair of scissors
- A fletching device
- Q-tips
- A few beers, not necessarily, but I like it…
- A digital grain scale
Determining the grain Only thing we need here is our eyes and the graphite pencil. Taking a closer look at the front- or backside our arrows, it isn’t hard to see the grains of the wood. It is important to indicate on the arrow how the grain is aligned. The meaning of all this is that the string of your bow comes perpendicular on these grains. Now we have full benefit of the spine-value of the arrow. Doing this not right means a weaker arrow (lower dynamic spine-value).
I always inspect both sides of the arrow and pick the side with the most obvious grain. Make the mark long enough that’s it still there after you have tapered the shaft for the nock.
Cutting your shafts to length. As you are working with the pencil already, we start marking the desired length. Measure it up and indicate the length. I always check if all shafts are indicated the same, because an error is easily made. When they are all indicated right, I saw them to length with a miter saw. I cut them at 75 cm, which is 29,5 inch. The length of the complete arrow (with field point installed) is about 30,5 inches. BOP is 29 inches. My drawlenght is 29 inches at least, so the length of my arrows is very precise, for broad heads you might want to keep more room.
Installing the nocks For installing the nocks I use an old-fashioned tapering tool. After all shafts are tapered, the nocks can be glued. I always use Saunders and nocks never came loose. I put a small ring of glue in the nock, put the nock on the shaft and turn it around so the glue will be divided equally.
I take care that the small nock indicator is in line with the graphite mark. In this way I am sure the string comes perpendicular on the grains of the arrow.