Evenflo Revolve360 car seat cup replacement parts

These are replacement parts for the cup and its supporting wall part for the Evenflo Revolve360 car seat.

There are two choices of cups:

• Separate keyed Left and Right cups - this is how Evenflo intended design for the cups.  They each have a key peg on the opposite sides of the center retainer peg.  The key peg is to prevent the cup from rotating 360 degrees.  Other wise, the cup is symmetric.
• Symmetric - this is without the keyed peg, which allows the cup to be mounted on either side of the car seat.  Without the keyed peg, it will allow the cup to twist 360 degrees.  With friction from the retainer peg, it's not so much of a trade off for the indiscriminate side installation. 

The cup supporting side wall is intended to replace the small plastic piece that is screwed onto the car seat's cup holder toward the front.(see photo)  This piece is attached by a single screw and is in a located on either sides that are frequently impacted such that it can break off easily.  This piece reuses the old screw on the car seat.

All pieces are intended to print right side up as the oriented STL file.  Tree support is necessary.  I suggest “from build plate only” with an interface top and bottom gap of 0.28.