Is there a clean way to set up a projection(cut=var) such that var can be
set in the interface, and if it is not set, then extrude the part to some
thickness without duplicating the call inside an if/then/else?

pseudo code:

 if (projection_cut) {
     projection(cut = true)
        part1(var1, ... );
 } else {
     linear_extrude(thickness2)
          part1(var1, ... );
 }

I've tried a number of things and get various complaints like:

     projection(cut = projection_cut)
     linear_extrude(thickness2)
        part1(var1, ... );

and

     linear_extrude(thickness2)
     projection(cut = projection_cut)
        part1(var1, ... );

And similar variants.

Anyway, I am hoping to clean up some code.

EBo --

Basically under normal conditions I want the part to 3D render, but if
I set a cut variable, I wanted it projected into 2D to process as a
laser cut file.  I was hoping there was a trick to keep from
duplicating the calls.

On 8/25/2025 7:56 AM, John David via Discuss wrote:

Basically under normal conditions I want the part to 3D render, but if I
set a cut variable, I wanted it projected into 2D to process as a laser cut
file.  I was hoping there was a trick to keep from duplicating the calls.

shouldCut = false;

module maybeCut() {
if (shouldCut) {
projection(cut=true)
children();
} else {
children();
}
}

maybeCut() sphere(r=20);

Similarly if you really meant project rather than cut.