Quote Originally Posted by rylangrayston View Post
The coil we aim to make with our winding machine is a flat disk shape with a diameter of 11 mm and a height of 2 mm
we are using 38 gage wire. We wind the coil to 32 ohms.

I dont know if this is the best coil shape, more experimentation is needed and if some one uses different magnets or more power that can change everything.
Thats why we are taking the time to post the winder files so you can experiment with better coil designs

... they look a bit like this:

20131209_180111.jpg

We had to make our own winder because we have been experimenting with wire as small as 52 AWG
which is so small that you cant even pull on it to make it come off its spoll, it just breaks instead of spinning the spool.
So we had to make a stepper driven thing that unwinds the spool at the rate that we wind the coil.... tricky stuff but it had to be done
Is 38 being chosen for price, availability and speed of manufacturing, or would you prefer something closer to 52? and what kind of wire? Looks like bare copper in the picture. I have some 34 I can use for now so I'll start with that.