I needed a waterproof box for a solar charger I was designing.
I decided to make the design adjustable to allow the dimensions to be changed.
I updated the design as there was an error with one of the dimensions, which stopped it from scaling correctly!
Uploaded the wrong version last time sorry!
I have revised the design to include 10, 20 and 30mm M3 screws to be able to see what it looks like. Just enable one screw at a time!
A simple rule to follow is made the Depth parameter 3 mm less than the screw length you want to use.
Update 2018-05-03 It looks like the one of the extrusions had crested a new body, which has now been corrected in V9, thanks to Angelo Macaro for pointing out the problem.
Parameters that are used to adjust the dimensions of the case and screw length
10, 20 and 30mm screws are in the design to show how they fit with the design