Electric lapsteel guitar made out of a plank of spruce, a pickup from an old guitar, and some bits of hardware I bought. Made in my dad's workshop over New Year 2016/17.
It doesn't have to be that precise. Three on either side evenly spaced will ensure they do not get in each other's way. I did find that the strings would 'jump' out of their slots on the nut, which is why I had to add the small brass string guides afterwards.