Lyre

Fully printable (except strings) and playable lyre with acoustic soundboard.

Use strings which thinner than 1.2 mm. I tried only fishing line for test and it sounds not bad.

Gently and precisely clean the supports for well fitted tuning knobs. They must be tightly fitted into the rails. Gently push them into their rail on the top of the instrument. For easily pushing them, you can turn them while pushing. You can resize tuning knobs for better results.