3 string guitar slotted nut

A friend is hand making a cigar box 3 string guitar, and needed a slotted nut with 12mm spacing between slots. so i made him one. 9.5mm tall, 6mm thick 38mm wide.

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/h4r9sNHsmxG