V-Engraving & Flat Bottoms

[SamanthaJaneyCake]

Hi all,

New to the CNC world, but happily plugging away and even got some nice 3D cuts done! I'm somewhat stumped on this engraving issue I have though...

You see, I want to engrave a simple logo but in areas it widens out quite a bit. F360 wants to just keep engraving the V as deep as necessary so that it has a V bottom. What I want is to have a maximum depth it engraves to and then swap bit and give it a flat bottom where necessary (or vice versa). So for channels 1mm deep its a V but for 3mm deep its a \___/ , if that makes sense!

I tried this a few ways to no avail, I figured one option was to do an adaptive clear leaving 3mm stock then go around that with the engraver to chamfer it, but the first pass came up as an "empty tool path".

All advice welcome, thank you 🙂

[Steinwerks]

Can you export your project as a .F3D file and attach it here? This would be the simplest way to help.

https://knowledge.autodesk.com/support/fusion-360/troubleshooting/caas/sfdcarticles/sfdcarticles/How...

[SamanthaJaneyCake]

Hi!

Here you go:

[SamanthaJaneyCake]

Hi,

Sorry, I accidentally posted the requested file as a separate reply so I suppose you were't notified it was uploaded!

[LibertyMachine]

Fusion doesn't really have a good way of dealing with the flat bottoms in pockets and the engrave function at the same time. I've seen a couple IdeaStation posts about this from time to time.

Your only clean option (as far as I'm aware) would be to model out the tapered walls correctly and then use a 3D path to clear out the corners not reached by the engrave. It's not really pretty or user friendly