box for component tester GM328A

[drawings](https://cad.onshape.com/documents/fbbbe61f378d3b1b320b6740/w/8518ac54b9bdbc4a9784b6f3/e/39f409d1a39291d89d3f5207) and [more photos](http://makerspacelt.tumblr.com/post/135913540705/aivaras-recently-brought-a-really-nice-piece-of)

This is box for cheap and popular component tester from ebay.

To hold back cover use 2.8~3.0mm thick and about 20mm long wood screws.

Inside is enough space to fit 9V battery or 2xLiFePO batteries or even 4xAA size regular batteries.