2D Contour = Smooth Toolpath / 2D Chamfer = Segmented Toolpath (Same Model..!)

[walrys]

Hi all,

So I was cutting out a part the other day and noticed that my 2D Contour finishing pass was nice and smooth, but the 2D Chamfer tool-path (using the very same model) had become segmented, producing that jerky accel/deccel between points along an arc.  A couple of video examples follow - first clip finishing pass starts at approx 25"

Second clip, chamfer starts at around 28"

Also attaching my project file here.

Original sketch was an inserted .dxf - I know that .dxfs can play a bit weird with F360 - but I'm not sure that's the case here - why would the same arc translate to a smooth tool-path using one strategy and become segmented using another (largely similar) strategy?  Any ideas?

Thanks in advance for your suggestions!

Wal.

[seth.madore · Accepted solution]

The DXF isn't imported as an actual circle, and different toolpaths are able to apply smoothing properly to convert what would be hundreds of line moves into a couple arc commands. It appears that Chamfer lacks the proper Smoothing ability to convert this, which is worthy of a bug report for sure.

As a workaround, you can also use 2D Contour as a chamfer toolpath, although it does lack collision checking against the Shank of the tool. Chamfer (with Smoothing and  points turned on)

2D Contour with points and Smoothing  turned on: