topic Re: Autocad 2012 scale lineweights in AutoCAD Forum

Autocad 2012 scale lineweights

Anonymous — Mon, 11 Dec 2017 08:22:04 GMT

hi, i am using autocad 2012 on my windows 7 pc with a HP Designjet T830 plotter. My drawing is a B2 size which i need to plot on a A3 size paper. when FIT TO PAPER and SCALE LINEWEIGHTS are checked, all lines in the drawing are showing the same thicknesses on the preview. when i print, it is very unclear to read the print. what could be the issue?

thanks in advance

Re: Autocad 2012 scale lineweights

imadHabash — Mon, 11 Dec 2017 10:52:15 GMT

Hi and Welcome to AutoCAD Forum,

you may need to tick " plot object lineweights " from plot dialog then see if any changes.

Regards,

Re: Autocad 2012 scale lineweights

Anonymous — Tue, 12 Dec 2017 06:45:13 GMT

Its already ticked. No changes. Any other advice?

Re: Autocad 2012 scale lineweights

cadffm — Tue, 12 Dec 2017 11:01:27 GMT

Please upload your DWG with your ready pagesetup what you used, a screenshot of your Preview and your PDF (print to PDF or scan your Paperprint).

I dont know what is "it is very unclear to read the print" for you and with your DWG and PDFs we can see the problem easy.

Re: Autocad 2012 scale lineweights

Anonymous — Wed, 13 Dec 2017 03:48:56 GMT

what i mean by unclear is the printed lines are very thin even in the preview

Re: Autocad 2012 scale lineweights

cadffm — Wed, 13 Dec 2017 14:12:18 GMT

Please upload your DWG [check]
with your ready pagesetup [no pagesetup in your 'Layout1']
a screenshot of your Preview [no Screenshot of your Preview]
and your PDF (print to PDF or scan your Paperprint).[no Screenshot of the result plot]

Short: There is not really a Layout/Pagesetup.

~

But I tried without that with my settings: B2 (1:1) and A3 fit (~ 1:1.858)

Please Compare lineweights with the same printer:
a) B2-Plot, Lines of Layer 'IBEAM LINE' (0.20) or 'I CEN' (0.15)
with
b) A3-Plot, Lines of Layer 'ICOL' (0.35 scaled by 1.0/0.538213= Lineweight 0.188375)

A3-Plot lines of ICOL should have lineweight like 'IBEAM LINE' or 'I CEN' on B2-Plot.

(in other words: Your 1:1 printed lines with lw 0.18 looks much better as printed 1:2 lines with lw 0.35 ?)

'IBEAM LINE' lw 1:1 = 0.35mm
B2 fit to A3 ~ factor 0.538213
0,35mm * 0.538213 = 0.188375mm lw on Plot.

'.25 LINE' lw 1:1 = 0.25mm
0,25mm * 0.538213 = 0.134553mm lw on Plot.

aso

Re: Autocad 2012 scale lineweights

Anonymous — Wed, 13 Dec 2017 14:17:18 GMT

open the properties of line and change the line weight and get the desired line- weight.

Re: Autocad 2012 scale lineweights

dgorsman — Wed, 13 Dec 2017 15:22:24 GMT

There's a problem with scaling line weights for printing, in that they scale linearly. If you set up the full size to print with "good" values, shrinking them down proportionally for a half-size drawing results in very little difference between them. If you set up for the reduced print, when you print up to the full size there is too much difference. So I work with two plot styles, one for full size and one for reduced size. The first has a little more variation in the middle weights, while the second has fewer actual weights but a more noticeable difference between them.

Of course that only applies to physical paper copies. PDF and electronic printing should always be printed at full size.

Re: Autocad 2012 scale lineweights

Anonymous — Thu, 14 Dec 2017 03:02:46 GMT

thank you all for your explanations. but the lines prints on the Designjet 500 when reduced to A2 size but not on the T830. although the preview shows it correct sometimes. i am not familiar with cad and this has taken place at my customer's site.

Re: Autocad 2012 scale lineweights

Anonymous — Thu, 14 Dec 2017 07:53:50 GMT

i have attached 3 images of whats taking place. one more file is attached called t830 preview on my next post. i have installed the latest drivers of T830 plotter. but if i select paper size A2 Portrait with the T830, then it will show correctly with scale lineweights checked. any opinion?

Re: Autocad 2012 scale lineweights

Anonymous — Thu, 14 Dec 2017 07:54:25 GMT

this is the t830 preview file.

Re: Autocad 2012 scale lineweights

cadffm — Thu, 14 Dec 2017 11:11:23 GMT

Now you show totally other things, A3 is now A2 and you compare pears(mm) with apples(inch).

Lineweight=ByLayer=>'IRF B1'/'IRF B2'
Layer 'IRF B1/B2' Lineweight =0.50mm

DJ500 A2 Scalefactor =1.22
1.0 / 1.22 =0.81967
lw0.50 x 0.81967 = ~lw0.41(units)

T830 A2 Scalefactor =29.8
1.0 / 29.8 =0.03356
lw0.50 x 0.03356 = ~lw0.017(units)

Your "Layout" is ~695units in X-Axis (thats well for mm)
now you said thats inch, 695inch.
Your printable paper size in X-direction is 23,4"
and you want to fit your Layout (695) into that Paper (23.4),
The factor is 1/29.8=0.033556

too small for your printer and your eyes.
The problem ist not the printer.
the problem is that your Layout is not build in/for inch.
Use mm in Plotdialog or create a inch-fit Layout (scale all by 1/25.4).

*all numbers are up and down rounded, it was´nt important for me*

Re: Autocad 2012 scale lineweights

Anonymous — Tue, 02 Jan 2018 11:17:19 GMT

my client also complains that some of the text in the drawing does not print too. any ideas?

Re: Autocad 2012 scale lineweights

Alfred.NESWADBA — Tue, 02 Jan 2018 12:56:27 GMT

Hi,

The first question was: "Autocad 2012 scale lineweights"

...is that solved?

If no let keep us informed what you tried from the suggestions and show your results.

Last question:

>> my client also complains that some of the text in the drawing does not print

Please, for new questions create a new thread ... so people searching for solutions (like for not printed text) could find that thread (they will not search in "...scale lineweights..." to find answers about "not printed text" 😉

And please make it more easy for us to know what exactly you are speaking about ... "some of the text" .... is wired as you have 1400 text/mtext objects in the drawing and we should now search for which ones are meant by "some" and are missing. ;(

- alfred -