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tomfrascone / diy-layout-creator

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Trace widths and pad sizes rounded up/down when exported #199

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
What steps will reproduce the problem?
1. Add a pad with size = 0.08 inches and hole 0.02 inches.
2. Export the trace mask (PDF reveals the problem better).

What is the expected output? What do you see instead?

I would expect my pads to be 0.08" with 0.02" holes, but they are 0.085" with 
0.025" holes.  If I set pads to 0.075/0.015 or 0.085/0.025 I get the right 
result but there appears to be some weird rounding going on because I can not 
hit 0.080/0.020 and other precise values.  It seems to only output tens plus 
0.05. If I use something like 0.078/0.018 it is rounded down to 0.075/0.015.  
If I use 0.096/0.036 I get 0.095/0.035.

Trace widths also get rounded, but seem to allow for increments of 0.05 which 
is at least a little better (but really not very good if you are trying to 
create accurate precise boards).

What version of the product are you using? On what operating system?
3.23.0 Windows 7 Professional x64

Please provide any additional information below.
This happens on both of my two PCs which are running the same version of DIYLC.

Original issue reported on code.google.com by gordtran...@gmail.com on 14 Jan 2013 at 7:48

Attachments:

GoogleCodeExporter commented 8 years ago 
This really needs to be fixed.  It makes it impossible to create masks that use 
a specific hole size that is not 0.025, 0.035, 0.045 etc.  The trace width is 
also a serious problem when trying to create boards that use tight routing.

Original comment by gordtran...@gmail.com on 24 May 2013 at 8:56