Simple Parametric Tray

A simple tray with customizable dimensions and support for rubber feet or magnets on the bottom. Want a magnetic box in a similar style? Check out my [parametric magnetic box](https://www.thingiverse.com/thing:6311673)!

###Customization
**Length, Width, Depth**
The dimensions of the tray interior.

**Wall Thickness**
Thickness of the walls and size of various chamfers/fillets. The bottom of the tray will have the foot inset added on top of this value to account for the feet.

**Foot Diameter/Inset**
Dimensions of the rubber or magnetic feet. The inset controls how deep the cutout for the feet will be.

**Tolerance**
Offset added to the insets for the feet. Default is 0.2mm.

**Corner Radius**
How rounded the corners of the tray are. Mostly an aesthetic choice.

###Printing
Most standard profiles with a 0.2mm layer height should work just fine. Two or more wall loops and at least 15% infill of your choice depending on desired strength. The pre-built STL files are des