Hi, everyone, here is what you will need as far as wood is concern.
you will need two pieces of wood 24” long (MM 609.6) (CM 60.96)_ 1”1/2 wide, (MM 38.1) (CM 3.81) 3/4” (MM 19.05) (CM 1.905) thick as you will be routing 7/8” (MM 22.225) (CM 2.2225) wide and 7/16” (MM 11.1125) (CM 1.11125 deep for the bore.
Take the two pieces and lay them together in your hand and see if they fit tight together, you may have to plain them or sand them to make them fit close together. Once you have two sides that fit snug together, decide which of the two you want for the top and which one you want for the bottom. Write on the one you want on the top /Top/ and the one on the bottom /bottom/. Now, inside of the two that you put together you write the word cut or route, also decide which end you want to be the blow end, (the end to your mouth). When putting the two piece together, run several marks on the side so you know that they go together in that direction.
Now get a square so you can draw a straight line. Make sure that both pieces are 24” long; lay them side by side on a table or what every/ and from the mouth end measure 2” (MM 50.8) (CM 5.08) and take your square and draw a line through both of them.
from that line measure 4” (MM 101.6) (CM 10.16) and draw a line through both of them. Now at the the end of the 4” line measure 1” (MM 25.4) (CM 2.54) and mark that the same way. Now take your sq. and follow the line on each piece of wood so that it follows all the way around and meets. Now draw a center line from the mouth to the bottow of each piece, the side that you plan to route out. Now with the centerline drawn, draw that line at each end, so if you look at each end of your wood piece you will see the center line. Sorry I”m trying to make this simple.
If you need to see a picture of this email me email@example.com
Now, the lines that you have put on your flute are at the mouth end ; sometimes called the North end.
In the 4” area you will be routing out that area only and it will also be 7/16 deep and 7/8 wide, It is referred to as the SAC ( Slow Air Chamber) you will do this on both pieces. You will begain and end at the line you have drawn (with in the 4”) you are not to pass the line. When you put the two piece together you will line up the lines drawn on the side. The 1” is to be solid as well as the 2” (not routed) at the end of the 1” line closes to the end of the flute, you start or stop at that line. From the 1” line to the bottom of the flute, you route the same as you did the 4” SAC ,, 7/16 deep 7/8 wide.
If you start with one piece say at the bottom first and route to the 1” line, the other piece you start at the opposite end; in other words one piece is to start opposite the first piece.
You do this to keep the wall thickness the same when they are put together. Usually one wall is thicker than the other and this way they will match when put together.
Because I’ve been doing this for so long I realize that what I have written makes sense only to me, and that it may not make any sense to you so please help me to help you make sense out of this, no question is toooo stupid.