topic Double lines / pipe-like lines print problem autocad in AutoCAD Forum

Double lines / pipe-like lines print problem autocad

Anonymous — Wed, 22 Nov 2017 16:04:52 GMT

I have a problem with a autocad architecture 2016 file that I haven't been able to find a solution on. A single line will be represented as two or even as a pipe two when I print them to pdf. I usually print from layout space without any special settings and then import the pdf to illustrator where I fine-tune the drawing.

I found this post with a seeming similar problem:https://forums.autodesk.com/t5/autocad-forum/polyline-global-width-is-displayed-as-two-lines-instead-of/td-p/2447777

I tried all the suggested solutions without any luck. When I did the "UCS, W. and PLAN, W." it did however change where the problem occured in my drawing. So I think the problem might be related to the ucs somehow, but I can't manage to fix it.

Enclosed are the autocad drawing along with a pdf taken through illustrator. You will see the problem for example on the small staircase in the upper left corner of the drawing.

I greatly appreciate any help. I've used this forum many times but this is the first time I've had to make a post of my own.

Re: Double lines / pipe-like lines print problem autocad

Alfred.NESWADBA — Wed, 22 Nov 2017 16:44:20 GMT

Hi,

that is what I see:

So besides of the colors (which seem to be controlled by converting to b/w) ... where is the difference or what exactly is wrong.

I don't understand you post, for me the PDF looks exactly the way AutoCAD have to do that when plotting to PDF.

One of "my problems" could be to not understand what is meant by "pipe-like lines"...

- alfred -

PS: I would not use Adobe PDF for printing from AutoCAD to PDF, I would use an AutoCAD internal driver (e.g. "dwg to pdf.pc3")

Re: Double lines / pipe-like lines print problem autocad

Patchy — Wed, 22 Nov 2017 16:47:29 GMT

I think it has to do with plotstyle

Re: Double lines / pipe-like lines print problem autocad

Alfred.NESWADBA — Wed, 22 Nov 2017 16:59:01 GMT

Hi @Patchy

thank you for pointing that out!

What I see

The drawing and viewports are set to "2D Wireframe",
there is no active CTB assigned to that layout,
except of 5 layer no lineweights are assigned,
the object (the one you showed as multiple lines) has no lineweight assigned

So I have no idea where that could come from, for me that does not look like an AutoCAD issue, especially because the uploaded PDF was created from Illustrator, not from AutoCAD.

Let's see what happens when @Anonymous uses the AutoCAD internal pdf plot driver.

- alfred -

Re: Double lines / pipe-like lines print problem autocad

Anonymous — Wed, 22 Nov 2017 17:03:02 GMT

Thank you for the quick reply. You need to zoom in more to see the problem as the lines are very close to each other. When I actually physically print it it is represented as a very thick line which ruins the drawing for me. See attached screen-dump.

But funny enough your suggestion in the ps to use "dwg to pdf.pc3" solved the problem! I can't find any of the faulty lines after doing a reprint with that driver. So apparently it was a printer driver issue. Thank you for helping out. I'm still a little curious as to why my adobe pdf-driver did that.