Linux overlord Linus Torvalds has offered to hand-build a guitar effects pedal ... but “also ended up doing a number of ...

With a truss rod hammered in, frets installed, and hardware attached, it’s mounted up to a cheap kit guitar for testing. The printed neck works, and it’s given a proper shakedown with some ...

As you can see below, it lifted a noticeable amount of grime off our studio PRS SE Hollowbody guitar. If you're frets have been especially neglected you may want to have another pass with the Frine.