3D-printed cylinder block where the cylinders are mounted.
This lead wall holds the cylinder arms in positon when the arms move up and down on the string.
The cylinder block with the mounted cylinders. The lead wall which holds the cylinder arms in position. And the cylinder arms which push the string down on the fret.
The 3D-printed fret system mounted on the fretboard. Six cylinders in each block and one block for each fret.