Dual ID Badge Rugged - Ellipse Hole

I printed this model in PrusaSlicer at a 45° angle about the x axis with organic supports and a layer height of 0.3mm (see screenshot from the slicer). This helps the arms have more surface contact with previous layers to be less fragile. 

Shorter card slop (about 1-2 mm difference). Adjusted card holder arms on the side with four holders to hold a thicker RFID card with less force. Changed the rectangular hole for an ellipse and rounded that area instead of leaving square. Also removed a couple of nubs in the card holding space.