Gerber Generation process and altium designer

[VJKris]

Hi,

I have the below scenario,kindly suggest the best possible way.

1) I have an existing Gerber files database and planning to do fabrication of the same.The PCB FAB vendor has asked to modify the FAB notes in the Gerber file(No Change in the main layers).Should i need to generate the Gerber once again after doing the modification OR is there any other way to edit only the FAB notes?

2)For eg: Mech 1 layer is where my FAB note is present.Can i just delete this particular file from my Gerber database and then replace with a modified Mech1 layer alone(retaining reaming Gerber files from original database)

OR

should all the Gerber files be generated at one shot.Basically i am new to the PCB and don't want to make much changes to the existing database.

Kindly advice.

Layout Tool Used : Altium

Regards,
VJ

 

[marce]

Gerbers are derived from the design file, so you change the master document (the design file) and regenerate the Gerber's, to work any other way is VERY bad practice and will lead to mistakes....And yes I would generate ALL Gerber's at the same time.

 

[SHABU]

Hi Vjkris,

Just modify the things in your board file and generate only the fab layer alone.
Don't change any other gerbers unless they need modifications.But you need to make changes in board and generate gerber.
Don't edit gerbers thats not a good practice.

Thanks,
SHABU

 

[Mattylad]

It is also not good practice to redo just the gerber in error.

They then all have different time stamps.

If your cad package can output them all at the same time it would be much better and you would be less likely to have problems in future if different files are found & used.