// F3DP study 2.0. Units: mm. Render F6, inspect, export STL.
// Educational geometry, not a machine profile. Check slicer preview.
label="F3DP"; width=60; height=22; thickness=2;
union(){ cube([width,height,thickness]); translate([width/2,height/2,thickness-0.1]) linear_extrude(0.9) text(label,size=9,halign="center",valign="center"); }