I want to build a mini electric guitar. I'm not a musician, but my son is, and I want to build a tool that he can use to practice. So it is important to me that what I make look and sound like a real instrument, despite the fact that I am not a luthier.
I got a small acoustic guitar on which I made my measurements to build the electric one. I searched online and found the right ratio to shrink the body (an average of 68%) but I can't find any information on how to shrink the length of the neck.
On the acoustic it's about 30% smaller than the original size.
What frets can I remove to downsize the neck?