Quick hack to the original design:

My Changes:

• adopted countersink for metric countersink (45° slope)
• indented screw hole by 1mm to be able to put a cap on
• generate a cap for the screw hole, the cap is placed beside the invader. (I did not check for all invaders if the placement is correct)
• made the pixel_connection_strength derived from the pixel size

please generate your preferred invader yourself.

Category: Household

[update 22.08.16]

added .stl for more Invaders