Plastic sheet to make HP-41C overlays

[Sylvain Cote]

IMHO the ideal solution will be to create a 3D printed parts that will cutout the extra paper/plastic/etc (keys) of the printed overlay.

• part 1 : reproduce an overlay but thicker
• part 2 : reproduce an negative overlay with slots to place small metal cutters around keys to cut the extra paper
  

How to use it

• you place the paper/plastic/etc printed thin overlay on top of the first part (thick overlay)
• you press the second part (negative overlay) on top of the first part (thick overlay) and you press to cut the extra paper/plastic/etc of the thin overlay