Customize LiPO holder with mount base

A version from my Customizable LiPo holter multi fix V4.
Made for 4 and 2 screw mount.
V2: Add sunk_screws

Edit 30.12.20 : It seems they changed something in the Customizer App. Because of that it is not longer possible to generate a .stl File form you`re design whit the Cusomizer. To avoid the error you can Download the source code and OpenSCAD (https://www.openscad.org it's free) to generate the .stl for yourself.