ruler marking gauge

hi guys.
this is ruler marking gauge .
I saw this model made of wood and I designed it for printing and I like it very much. I hope you enjoy it too.
***very important point is that you have time to place the magnet at a Z=7.5 to Z=10 mm.
- Magnet size is : height = 3mm and Diameter = 10 mm
- Ruler size is : thickness = 1mm and width = 27mm or
Ruler size is : thickness = 1mm and width = 29mm
Download 27mm files for a 27mm wide ruler and download 29mm files for a 29mm wide ruler.
Good luck.