Posting OD turning outputs taper

[johnmathisen]

I seem to have an odd issue with posting a finish outside profile for my lathe. For some reason it will turn the front radius then about 0.5 inches along the diameter it will start tapering out by 0.0013 inches. I created the model so I know it doesn't have a taper on the OD of the model. I can easily just delete the extra X values and it works but it would be nice for it to post correctly.

G95 G90 G18
G54
M8
G97 S958 M3
G0 X-1.395
Z0.05
G96 D1000 S350 M3
G0 Z0.0205
X-1.2297
G1 X-1.2579 Z-0.0001 F0.01
G2 X-1.3356 Z-0.0355 I0.0092 K-0.0491 F0.002
G1 X-1.3386 Z-0.0468
Z-0.1101
Z-0.5416
X-1.3391 Z-0.5811
X-1.3395 Z-0.6207
X-1.3397 Z-0.6602
X-1.3399 Z-0.6998
Z-0.7393
Z-1.171
X-1.3486
X-1.3839 Z-1.1533 F0.01
G0 X-1.395
Z0.05
G97 S958 M3

[seth.madore]

Would you be able to share your Fusion file here?
File > Export > Save to local folder, return to thread and attach the .f3d/.f3z file in your reply.

[johnmathisen]

I didn't really want to post my design online but I think I have discovered what is causing it. I have some text embossed on the outside edge and when I suppress the text it posts with correct X values. I was going to make a generic version of my part and as such I didn't add the engraving. When posting a regular cylinder, the X values are were correct hence my discovery. I would think when you have don't allow grooving turned on it should ignore and indents or grooves no?

[johnmathisen]

I also tried groove suppression by selecting the floor of each letter but it still posts a taper.

[seth.madore]

Yes, it should.

You can always email me the file: seth DOT madore AT autodesk DOT com

Please link this thread in your email so I understand the context 🙂

[johnmathisen]

I emailed you the file. I found 1 solution is to copy the body and then delete the faces of the emboss. I then used that body for the OD turning setup which fixed the taper output for now.

[seth.madore]

This looks like an issue with the Spun Profile, I'll send this along to the proper teams to investigate

[johnmathisen]

Ah ok I see turning that off fixes it but then you cant use groove suppression if you need to. Pretty sure it also defaults with spun profile checked because I don't remember going to that and clicking on the check box.

[seth.madore]

Yes, Spun Profile is on by default