Greetings,

Is there an easy way to create an inverted (concave rather than convex) fillet? I thought maybe using a negative number for the fillet size would work, but that doesn't do anything. I didn't find anything in the help section, but it seems like it should be possible.

Thanks,
Rusty

For your example, there is a plug-in command for setting a “radius” (fillet) to take “bites” out of pick points on lines and curves.

So you could start it and pick pick pick all the inverted fillet points

If that workflow works for you it can be dug up

Here:

https://moi3d.com/forum/lmessages.php?webtag=MOI&msg=10340.2

Actually, this one better:

http://moi3d.com/forum/lmessages.php?webtag=MOI&msg=9266.93

Another variation here:
https://moi3d.com/forum/index.php?webtag=MOI&msg=11300.4

- Michael

Thanks for the comments. The second option with the InvertedFillet2 script works find for 2D, but I probably should have mentioned it was for 3D. I was trying to make a 0.25" inverted fillet on one of the inside corners of the attached object. I really don't need this right now, so don't go to any effort creating any sort of script. I was mostly just checking to see if it was an existing function that I hadn't found.

Thanks,
Rusty

Hi Rusty, unfortunately inverted fillet in 3D is much more complicated.

For your particular case here, you could do it in 2D followed by Sweep:





- Michael

Seems easy with Orient / Line / Line / None... my favorite function! :)

but of course manually and one by one!

Thanks for confirming that it wasn't just something simple I missed in the commands. I was able to work around it, but just wondered if there was an easier way. All good. No further comments needed.

Cheers,
Rusty