re: guitars

Just a wee note on that ^^ (all good info btw) scale length is measured from the nut or zero fret to the centre of the 12th fret, you then double that measurement. The length between the nut and saddle is actually the scale length +2-3mm in order to correct the intonation for the height of the strings. It’s important to include that in the design or else you’ll never be able to move e saddles enough to correct the intonation.