380 Auto Cartridge Case(Vase Mode)

Realized one afternoon that I needed a semi "tactical reload" for my pocket pistol; after having to shoot at a stray dog, I was left with only 3 rounds in my CCW for the rest of the day.  Needed something in between carrying a full box  of ammo and a true reload in another magazine. Came up with this, compact and easy for day bags or jacket pockets. 

Modeled on official cartridge specs, plus a few mm at the to for different brand lengths, and a 1mm inclusive diameter clearance, for easy slip in and out. I wanted them loose for ease of handling, don't care that it rattles a bit.  Scale it up a nit in x,y, I'm sure you could get 9mm into it just fine.  Only 6 rounds for compactness, and my pistol only holds 6+1 anyway. 

Want options and have OpenSCAD, you can run my vase battery case model to cartridge specs as well; Parametric vase mode battery cases.

Uses a trick I found on youtube(https://www.youtube.com/watch?v=STNJbHJf9K0 ), Negative Volume Printing, to print inner and outer contours as one line in vase mode, fast and easy. No infill, and a split side, but plenty sturdy enough for this task. 

So, since this prints in vase mode, the lid is one solid block, won't print walls as a regular slice. 

Clearances are set up for a 0.8mm wall extrusion(I'm doing it fine on a 0.4mm nozzle), and a 1.6mm floor, 8 layers @ 0.2mm resolution.  Does have a 0.2mm offset to get a friction slip fit built in, thats how far my steppers are off in x,y. Need different, should scale out in Cura etc just fine.