zippo bit safe

this is my take on 3d printing the zippo bit safe by Laura Kampf (https://www.youtube.com/channel/UCRix1GJvSBNDpEFY561eSzw) and the video of it (https://www.youtube.com/watch?v=BBQR5wqBSXE)

through some discussion with other people making their own, it came up that it was too light (plastic vs solid steel of course...) so I designed it with a cavity to add lead shot. The cavity last layer is at 16.1mm so I would insert a pause there just before it makes the first fill.

I haven't printed it