Model to drafting unwanted lines showing up

[Jonagorn]

Hello, after modelling a part and then going on to draft it, I noticed that some lines behind surfaces were showing up for some reason. Also, at the edges where I chamfered them, you can still see the original edge as well as the new. Any help would be much appreciated. Thank you.

 

[JohnRBaker]

Without at least some images or the part file itself, there is little that anyone could comment on or suggest solutions.

John R. Baker, P.E.
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[kapmnit123]

Hi Jonagorn ,
It would be nice to have some images of your model but as you mentioned "SURFACES" it could be a result of multiple copies of sheets (may be you have hidden them but are in the same layer and hence appear in the drafting view).
Best Regards
Kapil

 

[jerry1423]

An image would definitely help, but my best guess is that you have faces (or surfaces) that are interferring with each other.

 

[cowski]

I'll add a couple more guesses:

Have the views been updated?
Are there any sketches and/or any other geometry that shouldn't be in the reference set?

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