Scriber

Scriber is really helpful in layout especially when working with metals and acrylic.I could have bought one but i decided to make something that looks fancy rather than boring generic one.
I was wondering what to design it around and I had the light saber stl *ideabulb*. I think this is the one (http://www.thingiverse.com/thing:799261) cleaned up the stl reduced the facets and designed it in fusion 360. I made another knurled scriber that is more ergonomic to me than the light saber one but both work the same :)
I have used sewing needles for the metal ends. I had heated it up and dipped it in oil.("heat treament")
The light saber has a hole of 2.5mm for bigger needles and the other scriber has a holes of 2mm. I had epoxied the needles in place. Designed it for press fit which works really fine. If yours is loose wrap it with PTFE tape and push it in :)
I have scribed more than 100 lines in metal and the needle is still sharp so I epoxied it permanently rather than making it re