Printed in PLA on Wanhao Duplicator I3 with compensation for normal line thickness. You must calibrate your printer before printing the 4x4 LEGO mount, or it won't fit on your LEGO. Then measure to see if your settings need a modification to the inner and outer thickness to the model. Wait for the print to cool off and shrink, then use fine sandpaper until it fits with lego without seams. Smooth out the large hole for the camera using a circular motion with a soldering iron. Make small quick inward strokes to solder the edges and longer strokes along flat surfaces. Add some scrap filament as extra material when attaching the LEGO mount to the bottom while avoiding anything sticking out against LEGO parts. Attach the flat cable into the camera. The camera is snapped tight inside the top's large hole and the bottom is screwed into place using four M2 screws of length 10mm from the front.