3D + Polymer Clay

I was trying to make a 5 sided knob for my Z-Stop adjuster on my Anet-A8. The M3 bolt used to set the adjustment has 0.5mm pitch, so a 5 sided knob would equate to 0.1mm. However the knob with these numbers on it was far too big. (I will publish the smaller one in another post, but without polymer-clay.)

The question remained though - how to highlight the numbers? I eventually tried Polymer Clay, as advised by my friendly craft supplier in town. I was able to clean up the faces first with wet