This is an enclosure for the component tester with LCD display (made by Fish8840), which is available at ebay. The designed case consists of two parts. More about the case could be found in my blog: https://diebastelkammer.wordpress.com/2014/12/20/komponenten-tester-bekommt-ein-passendes-gehause/ You need the following parts: Upper and lower case pars, I printed in PLA 4043D, Layer height o,2mm 2 pieces M3x30 screws 1 pieces M3x20 screw 3 pieces M3 nuts 3 pieces M3 washer 1 piece switch 1 piece 9V battery 1 piece Component tester: http://www.ebay.de/itm/LCD-12864-Transistor-Tester-Diode-Triode-Kapazitat-ESR-Meter-MOS-PNP-NPN-/321511337875?pt=Mess_Prüftechnik&hash=item4adb91af93