Chamfer an inside edge

[donniedrake]

How are others accomplishing this. See jpg

[Tom von Alten]

Well, it's not clear what you want to accomplish if you specify just one edge like that. How should the chamfer be terminated at the blends? If you specify the the whole concave chain of edges (edge/blend/edge/blend/edge), it will work.

You could also chamfer first and then blend, but as you'll see, the results probably aren't what you had in mind.

If you want a chamfer just the length of that straight edge, stopping square at the blends, it would take manual creation of a profile and machining, I imagine.

[donniedrake]

Here is what I am trying to do with the chamfer command. Seems like too many steps for something this simple.

[Tom von Alten]

I hear ya, but that's the limitation on the chamfer command -- it doesn't like having to create those new faces at the end of the blends, I think. If you did a lot of this, it might be easier to make a squared-off tool, chamfer the tool and subtract the tool rather than setting up the workplane, drawing the profile and machining to the length of the edge.

Once upon a time there wasn't a chamfer tool in SD, and there was a lot of wailing and gnashing about that...

[gmatelich]

yep, that's how I'd do it too. Only when I want a chamfer like that I usually also want the chamfer to wash out, i.e., the tool shown in a previous post would be used to do a bore operation at each end of the chamfer. Which is several more steps.

[marcvonams]

:cool: A good cheat that has varying success is the mod 3D, angular lift, do a 45 degree angle. This leaves a radiused face, which you can easily clean up using the the mod 3D, align face. Quick, but fails often, depending on your topology.