Chamfering bores: Inconsistent results

[FrodoLoggins]

Ok so both these bores are Ø.375" :

I'm looking to add chamfers that are the same size and angle. Included angle of *120. Identical chamfers.

1: If I apply chamfers to both bores that have the same settings, I get 2 different results. Same applied angle but one has a steep taper whereas the other has a shallow taper:

2: If I apply them one by one using the same distance but alternating between applying angles of *30 and *60 (alternating between 30/60 for consistent chamfer angles depending on which side the angles are applied from), the chamfers are still different:

All geometry created in Fusion.

[TrippyLighting]

That doesn't look like a bug (an unintended malfunction), it looks like an implementation flaw:

 When you start the chamfer on the first hole it defaults to 45 degrees. When you change the angle to 30 deg it holds the outer edge and moves the inner edge to accommodate the new angle:

When you chamfer the second hole, it also defaults to 45 deg, but when you then change the angle to 60 deg it holds the inner edge:

The tool should allow to define which edge to hold or which to move, or even better should have a "flip" switch as so many other tools in Fusion 360 do.

I believe this has been reported a number of times. Time to get it fixed @Phil.E 

[FrodoLoggins]

@Phil.E I believe this is the exact same issue.

Not looking to do some trig or babysit every chamfer I make. Let me know what you need from me.

[Phil.E · Accepted solution]

I can see the problem in the video, but I can't reproduce it.

I opened the file and replaced the chamfer. FYI, there is a flip button and it works just fine to solve the issue. Nothing special here. I suppose the workflow could be improved so that the flip button is never needed, is that the request here?

[FrodoLoggins]

The flip button does technically solve my issue but I'd still need to babysit every hole and flip the ones that didn't chamfer the way I need them to. If I chamfer 10 holes at the same time sometimes they all get chamfered exactly the same. Sometimes half of them are different. Sometimes there's only one odd ball. I say just make the results consistent. The flip button is nice but I'm not perfect and if 9 out of 10 chamfers look good I'm probably not going to flip the 10th chamfer when the dialogue is still open. I'll probably realize it later during a toolpath simulation.

[FrodoLoggins]

Would be nice if there was some visual indication for which direction the chamfer distance value is applied from but at least the consistency is now good enough for the girls I go out with.