OpenSCAD - Solid parts not solid...

[Roxy]

I don't know... I'm not a Mechanical Engineer. But it would seem having the extra material at the center would make the reinforcement stronger. But if you want it to look more like intersecting planes... This will do it:

difference() {
cylinder(r=10, h=10);
cylinder(r=8,h=10); }
for(i=[1:1:8]) rotate([0,0,i*45]) translate([0,-.25,0]) cube([9,.5,10]);

4__lines.jpg

If you want it the same as what your code did... Without being symmetrical, you can do this:


4___lines.jpg

Bur really.... What you were doing with the module definitions is the right way to do it. I was just messing around because of the "I could do it in 10 lines" comment. I certainly am not taking any shots at your code!