// F3DP study 2.0. Units: mm. Render F6, inspect, export STL.
// Educational geometry, not a machine profile. Check slicer preview.
wall=2; x=24; y=16; z=14;
// Open channel: inspect drainage and supports in every chosen orientation.
difference(){ cube([x,y,z]); translate([wall,-1,wall]) cube([x-2*wall,y+2,z]); }