Quote Originally Posted by dklassen View Post
DesignSpark isn't $800, it's free.
design spark is just for pcbs - designspark MECHANICAL is not free.

marm - saw the post. I just really don't get on with sketchup. I tried to make it do simple things for a while and it just would never work the way the tutorials said it would.

And I could possibly make an stl file of that model work in openscad. But I,m not actually designing a golf ball - that's just the only reference most people will understand :-)

I'm actually trying to design a more aerodynamic sling glande with patterned dimples. But the start is currently a sphere which i then stretch into a variety of different glande sizes and shapes.
Hence the golf ball reference.
I'd probably be better off adding the dimples after resizing as otherwise they'll be stretched and not round.
But 364 round spheres with decent facet numbers crashes openscad every bloody time.
So I haven't really got to grips with the actual better design side yet.

The idea is to eventually make a missile I can break the current world sling record with.

And that's around the 480 yard mark. So it's not going to be easy :-)