hi,

any help out there?

I cannot create a groove ( in deutsch "Nut") on this surface where the cuts are going along.
Whatever values I try it calculates very long and then nothing happened.

I want to get a beveled gap between these surfaces.

What I'm doing wrong here?

thanks
Mike

If I good undestand your problem (not sure) :)
Sweep one rail (circle as profile) = a tube
Boolean Diff = separated forms
Sweep 2 rails (any curve as profile) = fill with any surface profile
20 seconds on my computer 10 years old, so 1 second with yours! ;)

thanks Pilou!

this works!
But still the question - why does the "nut" function not work?

regards
Mike

Maybe because
The "Shell" or "Inset" Function works on a surface and not on a line ?

Another thing : works with no Units System! It's more easy for tiny measures ;)

Hi Mike, is it the Construct > Offset > Inset command that you're trying to use for the "Nut" function?

Inset can sometimes tend to get confused when you use it on a piece that is smooth to the surrounding pieces. That's because it normally tries to shrink the boundary around the surface by using offsets of the surrounding adjacent surfaces, but that method does not work when the surrounding surfaces are smooth, so in that case it tries a different technique but it's kind of unreliable.

The next version of the geometry library is having some work done to its shelling/offset function so I have some hope that will get improved.

Meanwhile see this thread for some other techniques that can be used instead:
http://moi3d.com/forum/index.php?webtag=MOI&msg=3859.1

For something like this you may want to divide the object into 2 different solids (that are each capped) by cutting the full solid object by a dividing curve using boolean difference, and then fillet or chamfer the edges.

- Michael

Hi PILOU

what do you mean by this line?

"Another thing : works with no Units System! It's more easy for tiny measures ;)"


cheers, Steve

If you use mm as Moi works with 0.001 precision unity you lost some point decimal internal for nurbs functions / meters for example
So better use No Unity System during work and at the end retake mm for real measures
It's the same in some program !

Hi Pilou, it doesn't really matter which particular unit system you use - the unit system is just a label.

It matters more whether you use particularly large or small number values, like if you have coordinates like 10000000000.0 or stuff like 0.000000001 units - you don't want to have very large or very small numeric values like that.

But if it helps you to avoid using smaller or larger numbers to use a particular unit system then by all means do that.

- Michael

Ah yes :)
I have confused scale and unities