About this 3D model

Got a nice kit from Ultibots but want to have the LCD controller on the left. As I just did a few things on tinkercad I tried to move the mount from right to left but struggled slicing this. After I run it by netfabb I got a slicable version - the one with fixed in the name. I know that asking for the source CAD files and making the change there is the 'better' way but this was just a pragmatic approach which worked for me.