Problems with "trace" when chamfering

[ole.alex]

Hey

I'm trying to follow the Titan-9M tutorial and found some bugs with the trace toolpath when chamfering.
Chamfer tip offset does not move the tool sideways, it just moves the tip down so too much material is removed.
The tool should be possible to move sideways to avoid a burr being left by the tip.

I might also mention that "radial stock to leave" does nothing either so any setting that should move the tip of the tool sideways does nothing, only the settings for vertical movement of the toolpath works.

[ole.alex]

It seems like the trace operation is missing the "red arrow" directional function so the toolpath just blindly follow the countour with the center of the tool.

Screenshot from the Titan-9M video using the trace function for chamfering

[seth.madore]

It sounds like you've still got Trace set to "Center" for it's compensation. Set it to "Left" or Right" for the arrow to appear as well as for Stock to Leave to have an effect

[ole.alex]

Thank you.
Your solution works, but unless "chamfer tip offset" has a value an "unexpected error" message appears.
Might be an idea to make this a little more intuitive by adding am actual error message that helps with the problem.

[seth.madore]

Please share your file here so we can see the steps needed to produce this error.

File > Export > Save to local folder, return to thread and attach the .f3d/f3z file in your reply

[ole.alex]

With sideways compensation left and chamfer turned off this error is generated:

With sideways compensation left and chamfer enabled, but values set to 0 gives this error:

[seth.madore]

Hmm, interesting. I'll look into this at some point today or tomorrow and get it logged if needed

[ole.alex]

Thank you Seth!

[benjamintoews]

Wonderful! I didnt even think of it that there might be a "center" option. I was wondering why trace wasnt offsetting.

[benjamintoews]

Now if they would just give us a chamfer clearance like the chamfer cycle...

[oleg.tikhomirov]

I've created CAM-44210 about crash in Trace.

Unfortunatelly "Chamfer clearance" isn't supported right now. Mainly because Trace isn't model aware strategy.

[programming2C78B]

Why not just use the chamfer or 2D contour toolpath....trace really isn't ideal or possibly even meant for this. 

[seth.madore]

@programming2C78B cuz it's a 3D surface, 2D Contour or Chamfer won't work

[benjamintoews]

I just created a sketch line about 1/8” short of the shoulder because my chamfer cutter is 1/4”. Then I selected this line instead of the model edge. Works great, it’s just a little more work.