1. Demonstrate how to use the OpenSCAD code below to create cross-sections. Explain how to use the Customizer to adjust the rotation and translate variables.
2. Provide students OpenSCAD code. Students may also illustrate on paper or with digital ink.
3. Students will construct cross-sections and create pages in a shared PowerPoint presentation which contain snips of their visualizations.

SCAD Code for 3D Cross-sections

//Uncomment the primitive prisms below to see how cross-sections are affected. Adjust the variables below to rotate and translate the slices.
//Rotate with values up to 90 (degrees)
rotation = 0;
//Translate with values up to 20
translation=0;
intersection(){
 rotate([rotation,0,0])translate([0,0,translation-25])color([1,1,1,.1]) cube([50,50,50],center=true);
 
 #
 //cylinder
 cylinder(h=20, r=10, center=true);
 
 //cone
 //cylinder(h=15, r1=10, r2=0, center=true,$fn=100);
 
 //sphere
 //sphere( r=10 ,$fn=100);
 
 //pyramid
 //rotate([0,0,45]) cylinder(20,20,00,center=true,$fn=4);
 
}
rotate([rotation,0,0])translate([0,0,translation])color([1,.7,.7,.1]) cube([50,50,.01],center=true);