// F3DP study 2.0. Units: mm. Render F6, inspect, export STL.
// Educational geometry, not a machine profile. Check slicer preview.
part="cube"; // cube, first-layer, bridge, towers, plate, strip
if(part=="cube") cube([20,20,20]);
if(part=="first-layer") cube([30,30,0.2]);
if(part=="plate") cube([30,30,3]);
if(part=="strip") cube([60,10,3]);
if(part=="bridge" || part=="towers") union(){
 cube([40,16,2]);
 for(x=[0,32]) translate([x,part=="bridge"?0:4,2]) cube([8,part=="bridge"?16:8,part=="bridge"?18:30]);
 if(part=="bridge") translate([0,0,20]) cube([40,16,2]);
}