Boolean stencil?

 From:  Frenchy Pilou (PILOU) 22 Jul 2019  (2 of 20) 
9436.2 In reply to 9436.1 
You can take a look to my page (sorry in French but...)

http://moiscript.weebly.com/kitbash.html

EDITED: 22 Jul 2019 by PILOU