Someone asked awhile ago about how to make a pot for a turkey call. I figured i would show you how I do it. this is certainly not the only way to do it but it works well for me. We're using a piece of rough cut red cherry. This peice is 4 1/2" x 4 1/2" x 1".
Once we have a basic piece of wood, we need to cut the blank. I use a 4" hole saw to do this. You can use a band or scroll saw but I prefer the hole saw because, when I cn, I use the left over to make a case for the call.
Cut ALMOST all the way through, then flip the peice over and using the hole made by the pilot dril, finish the cut from the other side. This will make it easier to get the blank out of the hole saw.
After I have the blank cut out, I mount the peice in the barracuda chuck with the large jaws. Then take a 3 1/4 forstner bit and with the lathe on it SLOWEST setting (500 RPM for mine) I drill out the center of the pot to the depth I want.
Use the pilot hole left by the hole saw to judge the thickness of the pot bottom. If you want a shoulder or step in the bottom to hold your sound board, ONLY bore to the TOP of that shoulder. Remove any material past that point with your chisels and shape your shoulder. I do not use a shoulder so this pot is bored to the thickness i want the bottom to be.
After I have the pot basically hollowed out the way I want with the 3 1/4 forstner bit, I switch to a 3 1/2" forstner and cut a shoulder for the slate or glass to sit on. I just approximate this depth. I like it a little deep so I can trim up the pot to the right depth and have room for sanding.
Here is the blank pot ready to be turned.
I use a nova chuck with 75 mm jaws and put the pot on it to turn the outside and bottom. I use a couple spacers of 1/8 ply to give the bottom of the pot some support against the face of the jaws. Then since i have a large sound hole in my calls, I use the live center as sort of a "safety", probably not a reuirement but not a bad idea. This keeps everything centered on the around the calling surface. Just shape and finish the way you like.
I hope this helps you out with your pot call projects. If ican help you in any other way in doing these, just give me a hollar, I'll be glad to.
Brian