Box made for ATtiny85 type chip programmer. The box is based on Tiny AVR Programmer - PGM-11801. Manufacturer Sparkfun.

The box consists of two parts. Assembly is done by pre-inserting the circuit board into the top and displaying the USB through the hole. 

Then insert the bottom part (if necessary, find the circuit board additionally before trying to close the box) and push the top part to the bottom part until you hear a click. Once assembled, the parts fit very snugly and may be difficult to take apart again. For me with the printer tolerances, the box fits very well. But if someone needs larger tolerances, I have attached a .step file for easier modeling of the tolerances.