Large areas beyond object permiter, but within the bounding box, are not ignored, leading to long periods of air cutting

[unaHm]

I have a STL of a Guitar I would like to process with Meshmill. However, I've noticed that a large portion of the toolpath is of the areas that are marked as black in the heightmap beyond the perimeter of the object's body. Is there a way to avoid this?

[jes]

Hi, for some reason I thought meshmill already had an option for this but it doesn't look like it does.

What size end mill are you using? Let's say it's a 10 mm end mill.

One idea is you could go into CAD and make a solid rectangular block with a hole in the middle that stays 11mm away from your object. And then turn on the "Omit top" setting, and it will not cut out the top of the rectangular block.

We could really do with an "Omit bottom" setting or something, where it doesn't bother cutting anything that would go all the way to the bottom.

[jes]

@unaHm I've added an "Omit bottom" option in https://github.com/jes/meshmill/releases/tag/v0.1.4 - could you give it a go and see if it does what you want?