Mech Squonker V4

This is similar to my V1, but has a small shelf below the bottle to help retain the metal positive strip, this one also has a Square fire button instead of round and there are small magnet indents on the inside of the door, that will allow 3mm diameter by 1mm depth magnets to be fitted to help hold the door fast.

The 510 mounting hole is 12mm in diameter, to allow fitting of the Modmaker MM510 Squonk 510, and is set back to allow the Modmaker 24mm diameter catch cup ring with minimal overhand