$fn=50;

length = 25;

finger_pull_radius = 5;

thickness = 3;

minkowski(){

            difference(){

                            hull(){

                                            //grip

translate([length+finger_pull_radius, 0, 0])

                                            cylinder(h=thickness, r=10,

center = true);

                                            //base

                                            cube([10,5,thickness],

center=true);

                            }

                            translate([length+finger_pull_radius, 0, 0])

                            cylinder(h=thickness+0.01, r=5, center =

true);

                            }

sphere(r=1);

}

How can I speed up the process?

Thanks,

Ken

The only way in your code is to decrease $fn only for the sphere you are
using for the minkowski operation.

Like this:

sphere (r=1, $fn=10);

Increase it in very small increments - you are trading off processor time
for smoothness, as it were.  Depending on the size of a 3D printed part, you
may not see the extra smoothness of a high $fn value.

For example, your code with the the above modification took about 20 seconds
on my PC, and your original code is still spinning.

--
Sent from: http://forum.openscad.org/