What is the difference between GerberRS274x and GerberRS274X_25?
On 1/7/2015 2:28 PM, Robert Wolf wrote:
What is the difference between GerberRS274x and GerberRS274X_25? --To view any images and attachments in this post, visit:http://www.element14.com/community/message/136771
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Hi Robert,
The only difference here is in the resolution of the output. The _25
variant gives you finer resolution by a factor of 10.
You can normally just use the normal GerberRS274x driver, the _25
variation was added due to requirements from certain boardhouses.
hth,
Jorge Garcia
Jorge,
I just got finished comparing gerber files generated with both settings and your answer is what I was looking for.
Thanks,
Robert Wolf
"Jorge Garcia" skrev i nyhetsmeldingen: m8k47i$ggp$2@cheetah.cadsoft.de ...
You can normally just use the normal GerberRS274x driver, the _25 variation was added due to requirements from certain boardhouses.
You can normally just use the normal GerberRS274x driver, the _25 variation
was added due to requirements from certain boardhouses.
I guess this is mostly a problem with fill areas. Since the Eagle/CAM is
using wire fill, the rounding vs Eagle's built in constant overlap can make
ultra-thin blank stripes in the fill pattern. Since manufacturers software
try to convert fills into polygons, they fail if rounding is causing blank
stripes.
Imo, cadsoft should use an overlap vs rounding parameters that will ensure
there is no blank stripes. Ideally the overlap should match whatever
rounding the CAM does, but it is also important to keep wysiwyg in the
editor.
This is another reason for future Eagle versions to evolve from wire fill to
proper polygon fill.
