3 OpenSCAD 3D Test Fixture

OpenSCAD is a freely available CAD tool that enables parametric generation of 3D models, which can be exported for 3D printing. In order to generate the 3D printable model used in these experiments, cut and paste the openscad code shown below into OpenScad, Render the Design, Export to STL, and generate the gcode for your 3D printer, and 3D print the fixture.

TRANSDUCER_RADIUS=8.25;
HOLE_RADIUS=3;
LID_RADIUS=40;
LID_LENGTH=3;

difference(){   
    union(){
        translate ([0, 0, 0]) 
        rotate([0, 0, 0])
       cylinder (h = LID_LENGTH, r = LID_RADIUS);
    }
    union(){
        translate ([0, 0, 0]) 
        rotate([0, 0, 0])
        cylinder (h = LID_LENGTH, r = TRANSDUCER_RADIUS);
        translate ([0, 15, 0]) 
        rotate([0, 0, 0])
        cylinder (h = LID_LENGTH, r = HOLE_RADIUS);
        }
    }