im getting a few warnings in the log file when generating gerbers.
WARNING: more than one via class in film record
WARNING: Null REGULAR-PAD specified for padstack VIA188 at (-576.17 -530.00)
is it ok to leave these warnings alone?
Probably not. The Via Class entry for a given layer Film Control would be VIA CLASS/<layer>, like VIA CLASS/TOP, this might not matter of all the Vias are through but probably best to look at the Film Control data and clean this up.
Connections are made to the Regular Pad(s), NULL means a zero, or no, definition for that padstack so its not going to be making a connection. Visit the location in PCB Editor and check padstack definition, Tools>Padstack>Modify Design Padstack, select the location and Edit in Options to open the padstack definition. (Or Tools>(Quick )Reports and get a Padstack Definition report on all the padstacks) Could be that VIA188 is not defined correctly.
In reply to oldmouldy:
Thanks for the reply. i imported the gerbers to view them and it seems like the vias are making contact to the correct planes?
might it be ok to leave it in that case?
if not is it possible to select the group of vias and modify the padstack for all belonging to same net becaus ei have alot of the same error.
In reply to FrancisFogarty:
Thanks for that,
The warnings i was getting was for my solder mask films. i accidentally put in soldermask top for the BBvia layers. this seems to be the error im not getting a warning anymore.
should i give new gerbers to the manufacturer just in case?
Also could u tel me what is the purpose of the checkbox " Full contact termal-reliefs " in the film control form? if you have already specified your termals to be full contact?
Check the help, that Artwork Film setting is for negative planes only and just deletes the Flash on those planes, the Global Dynamic Parameters are for Positive shapes / Planes, they are the one you need set.
(IMHO, You could give the fabricator the new photoplot data, just in case....)
Thanks once again for all the help. its much appreciated.
In addition, i would like to ask if there are other ways of generating artwork aside from Manufacture-Artwork. Maybe an export command for this.
Thanks in advance.
In reply to jemarods:
There are skill programs avaliable that will automate the output (gerber, ipc356, nc etc). Take a look on the PCB Skill forum or write your own. There is also an OrCAD App called Release Manager that will do this for you.