This is a customizable socket holder with half grid base designed to interface with the full 42x42 mm grid.  There is a parameter for socket angle so you can have them sit flat (0 degrees) or upright (90 degrees).  The socket parameters consist of 3 socket groups, producing a file with 3 different sized holes.  Each group's diameter and quantity can be customized to fit your exact socket set.  It's designed such that group1 will hold the largest socket, therefore, the socket_length should be the length of your longest socket.  Magnet holes are also optional and customizable via parameters.  Set enable_magnets = 0 to turn off magnet holes.