Customized version of https://www.thingiverse.com/thing:805325

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=805325

Using the following options:

Width = 53
Length = 42
FC_Width = 15
FC_Length = 48
Surface_Width = 3
Frame_Thickness = 3
Motor_Diameter = 6
Motor_Hole_Scaling = 1.0
Motor_Cap = 10
Motor_Cap_Wall_Thickness = 2
Motor_Cap_Side_Opening = 1
Motor_Cap_Inner_Bevel = 0
Which_Parts = frame
Resolution = 100