It depends how you define La La Land and what you have $fn set to.

This previews in 45 seconds for me and looks reasonable:

minkowski() {
scale([1,1.5,1]) handle();
sphere(2, $fn = 32);
}

On 11 December 2015 at 18:09, Jerry Davis jdawgaz@gmail.com wrote:

Increase $fn  and fn_sphere slowly.
This takes 19 sec on my machine.
​

$fn=32;
fn_sphere=16;

module handle_outline() {
hull() {
circle(r=12, center=true);
translate([20,0,0]) circle(r=3, center=true);
}
}

module handle() {
scale([1,1.5,1])
linear_extrude(height=6, convexity=2)
difference() {
handle_outline();
translate([0,0,-2]) scale([0.65,0.65,2.0]) handle_outline();
translate([0,-40,0])square(80,true);
}
}

difference(){
minkowski(){
handle();
sphere(2,$fn=fn_sphere);
}
translate([0,-40,0])cube(80,true);
}

2015-12-11 19:09 GMT+01:00 Jerry Davis jdawgaz@gmail.com:

On Fri, Dec 11, 2015 at 11:33 AM, Peter Falke <
stempeldergeschichte@googlemail.com> wrote:

great! that worked. I meant by la la land was that the process looked like
it went into a endless loop.
peter put me on the right track! thanks peter.

Here's my full code if anyone is interested:

$fn=50;
fn_sphere=16;
fn_cup = 100;

want_handle = true;
want_cup = true;

module handle_outline() {
linear_extrude(height=6, convexity=2)
hull() {
circle(r=15, center=true);
translate([20,0,0]) circle(r=3, center=true);
}
}

module handle() {
intersection() {
difference() {
handle_outline();
translate([0,0,-2]) scale([0.85,0.85,2.0]) handle_outline();
}
translate([5,20,0]) cube([40,40,12], center=true);
}
}

module cup() {
difference() {
union() {
translate([0,0,20]) rotate_extrude(angle=360, convexity=2)
translate([20,0,0]) circle(r=4, center=true, $fn=fn_cup);
translate([0,0,-20]) rotate_extrude(angle=360, convexity=2)
translate([20,0,0]) circle(r=4, center=true, $fn=fn_cup);
cylinder(r=23.5, h = 44, center=true, $fn=fn_cup);
}
cylinder(r=20, h=50, center=true, $fn=fn_cup);
}

translate([0,0,-22]) cylinder(r=22, h=3, center=true, $fn=fn_cup);
}

if (want_cup)
cup();

if (want_handle) {
translate([-3,22,5]) rotate([0,90,0]) scale([1,1.5,1])
difference(){
minkowski(){
handle();
sphere(2,$fn=fn_sphere);
}
translate([0,-40,0])cube(80,true);
}
}

--
Extra Ham Operator: K7AZJ
Registered Linux User: 275424
Raspberry Pi and Arduino developer

The most exciting phrase to hear in science - the one that heralds new
discoveries - is not "Eureka!" but "That's funny...".- Isaac. Asimov

I
*f you give someone a program, you will frustrate them for a day; if you
teach them how to program, you will frustrate them for a lifetime. *-
Anonymous

If writing good code requires very little comments, then writing really
excellent code requires no comments at all!- Ken Thompson

Anybody know: what is faster?
intersection or difference

2015-12-11 20:02 GMT+01:00 Jerry Davis jdawgaz@gmail.com: