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I'm being told by a nice little box that my artwork has been created with warnings. When I look in the log file, sure enough, it says in the summary that certain layers had warnings but there are no little clues as to what they are and how to fix them.
So......... How do I figure out what these warnings are?????
I have generated artwork for other board files with no issues. This particular one has been fighting me every step.
In reply to oldmouldy:
This is the summary from the photoplot.log file. Not very helpful.............
SUMMARY: LAYER6 created with warnings LAYER7 created with warnings SPB created with warnings SPT created with warnings SSB created with warnings SST created with warnings SolderMask_Bot created with warnings SolderMask_Top created with warnings BOTTOM created with warnings LAYER5 created with warnings LAYER4 created with warnings LAYER3 created with warnings LAYER2 created with warnings TOP created with warnings
ARTWORK had warnings
Typical detailed output for each layer
================================================================ PROCESSING FILM < LAYER7 > TO FILE < C:/allegro/LAYER7.art > ...================================================================
FILM PARAMETERS : --------------------------------------------------------- Undefined line width 8.00 Mirror code NONE Rotate angle NONE Offset x: 0.00 Offset y: 0.00 Plot negative NO Suppress unconnected internal pads NO Draw holes only NO
APERTURES USED: --------------------------------------------------------- TYPE SIZE/NAME ROT MIRROR MODE --------------------------------------------------------- CIRCLE 0.00600 DARK CIRCLE 0.01800 DARK CIRCLE 0.02200 DARK CIRCLE 0.02800 DARK CIRCLE 0.05000 DARK CIRCLE 0.06500 DARK CIRCLE 0.07300 DARK CIRCLE 0.10000 DARK CIRCLE 0.40000 DARK SQUARE 0.05000 0.000 NO DARK SQUARE 0.07300 0.000 NO DARK
LAYER7 created with warnings
In reply to TH Designs:
The default warning you normally see is related a photoplot outline (not really required) The warning is normally at the top of the log file and says something like:-
---- Photoplot outline rectangle not found ... using drawing extents
In reply to steve:
Steve, there is a plot outline. In the begining of the log file it says it can't open a parameter file. Could this be causing the warnings?
Can't open parameter file ... using default values: DEVICE-TYPE GERBER6X00 G-CODES NO STATIONS-PER-WHEEL 24 FILM-SIZE 24000 16000 COORDINATES ABSOLUTE OUTPUT-UNITS INCHES FORMAT 5.3 ABORT-ON-ERROR abort film & continue SUPPRESS-LEAD-ZEROES YES SUPPRESS-TRAIL-ZEROES NO OPTIMIZE YES SUPPRESS-EQUAL YES SCALE 1.0
Tom - I'd be suprised because if the parameter file (art_param.txt) isn;t found it writes a new one to the local job directory. Have you got any zero line widths? have you set the undefined line width per artwork film ? Do the output units = job units ? Are you sure you want to use 6X00 gerber rather than 274X ? Does the shape format = artwork format ?
There is one zero width line on the top silk, but this board is to dense for the top silk so it will not be used. If this is causing the warnings, then why does it show as a warning on every layer.
I will change to 274x.
The first time I ran it, I had no warnings. I then went and added the pcb part number to the bottom silk and that is when the warnings started.
I spent 20 hours on this job over the weekend, so by last night I was fried and didn't want to investigate too much. I was running the gerbers as a test, the board is going into review today so I have some time to sort it out. As usual, I'm sure it is something I'm doing incorrectly.........
Tom suggest you always use RS274X when creating the gerbers. RS274X embeds all the info need into one file so as to do a photoplot. Pretty much all board-houses support RS274X.
Also when you are setting up your gerber output, there is a field to define "Undefined Line width" for each film layer you want to output. By default this field is set to Zero and that should be fine most of the time, but as a safe-guard I typically make that field a "1"
Normally Allegro is pretty darn good at scanning the design and generating dcodes for the shapes pads, lines etc using RS274X format, think if you use that format life will be easier for you.
In reply to ScottCad:
ScottCadTom suggest you always use RS274X when creating the gerbers. RS274X embeds all the info need into one file so as to do a photoplot. Pretty much all board-houses support RS274X.Also when you are setting up your gerber output, there is a field to define "Undefined Line width" for each film layer you want to output. By default this field is set to Zero and that should be fine most of the time, but as a safe-guard I typically make that field a "1"Normally Allegro is pretty darn good at scanning the design and generating dcodes for the shapes pads, lines etc using RS274X format, think if you use that format life will be easier for you.Scott
I always use 274x, in fact, I don't know why this one reported the other format because when I went back into the file, the default setting was 274x.
For undefined line widths, I make the setting 8 for each layer.
Something strange was happening when I was making those gerbers. Yesterday, I had a few small edits to do resulting from the design review. I made the changes then generated the gerbers using the same method I did on Sunday. This time I had no warnings or errors. I didn't change a thing other then add and route a few new capacitors.
I have noticed another oddity. I need to document the steps to verify I can dupplicate it before submitting to tech. Let's say I'm in etch edit mode and routing. I then go and save the file (which I do fairly often). I then select F3 to continue routing, but I can not manually route anymore. I select etch edit, then add route and still can't route. I select placement edit, then etch edit, then add route and it is now working. It seems like after a save, I have to select a different mode then go back to the original mode and continue work. Again, I need to validate this, but I've seen it happen more then once.