Two body version: one with external screen protection (u need use the one of the original body) and one without that.
U need disassembly your Joyetech Evic VTC (just two screw) and u need use original spring and original push button (fire and up and down).
U need 4 4x1 magnets too.
13/02/2016: added fire_long.stl > it's a longest fire button respect original one, if u like longest fire button
17/04/2016: added up_down.stl and added body_v2.stl (this version is for do not use the display protection too and without frontal chambfer.
Some other info in my blog: http://www.esigblog.com/cura-dimagrante-per-levic-vtc-mini-stampante-3d/