Bad Body (Error: Edge goes through the pole of a surface checked)

[Maxim-CADman77]

As far as I know Bad Body in 3Dmodel is a main reason of the most frustrating Inventor issue - crashing.

Yet, if I check member of some Content Center's family (for example DIN 1587 nut) with Body Sanity Check (Ctrl + F7) the bad body error will occur (Error: Edge goes through the pole of a surface checked).

I wonder which is the best way to fix this keeping the geometry as much as possible (not just delete it and create new)?

Thanks in advance.

[johnsonshiue]

Hi! Bad bodies usually came from two sources. 1) Created by importing non-Inventor files. The geometry is already bad before importing to Inventor. Or, Inventor translates borderline quality geometry incorrectly. 2) Created by modeling operations. Occasionally, due to bugs, certain modeling commands generate bad bodies without warning users.

For this particular case in Content Center (Inventor generated content), I believe it was a bug due to Revolve feature in 2016, if I recalled correctly. What release are you using?

If you are on 2017 and later, you could try generating the exact spec hardware again. The bad body should be gone. Could you tell me what exact DIN spec CC parts exhibit the behavior?

Many thanks!

[Maxim-CADman77]

Please find attached the sample IPT from AI2018 CCL with such an error

[kelly.young · Accepted solution]

Hello @Maxim-CADman77 thanks for attaching the part. The bad body is the Cap Revolution. 

• Suppress iMate Insert In1
• Drag EOP to below CAP Revolution
• Delete Cap Revolution, uncheck consumed sketches and features
• Revolve again as Join
• Drag EOP to bottom
• Unsuppress iMate

Should fix the bad body, not sure why it was misbehaving. 

Please select the Accept as Solution button if a post solves your issue or answers your question.

[Maxim-CADman77]

Thank you. The shared steps did the trick (a bit later I'll mark you reply as solution).
Could you please also look at alike Bad Body case - https://forums.autodesk.com/t5/inventor-forum/bad-body-error-edge-intended-convexity-disagrees-with-... ?