I desinged this for some speed and accuracy tests for a 3D Printer drag race video. It is a twisted square and the lid slides down over the bottom, making a box to store you precious in.
To print this box, choose the appropriate STL, they are aready oriented correctly for printing without support.
If you printer is perfectly calibrated and your first layer is set well, use the Tight file. You will still have to work the lid up and down a few times for it to work smoothly. This file has been tested on The Prusa Mk3s and Mini with no issue. The tollerance is .3mm so it is very tight.
For all other printers or if you don't know if your printer is calibrated perfectly, use the standard file. the tollerance on this file is approximatly .6mm so it should work on any resonably well set up printer.
For those that have/will watch the video, all printers printed the standard version for consistency at a .2 layer height.