jjengel
Mechanical
- Feb 26, 2009
- 55
Hi all,
I've been toiling with the task of researching, developing and implementing a part numbering system for the past few weeks and have come across an area which I need clarified.
In an older thread ( it is suggested that the a category for modifications be created. I was hoping to get a confirmation on how to define "modifications". This seems pertinent right now as we have an assembled printed circuit board that we order and then modify by replacing or removing a few parts. Essentially PCB part #XXX has two resistors removed and replaced with #YYY and. Now, I could see this being interpreted as either a modification or an assembly, or both (As I dig deeper into the CM topic I can see why this receives so much attention). Or does PCB #XXX become #ZZZ (a modification) after the removal of the resistors and then an assembly (#AAA) with the addition of the new ones?
Maybe it's all elementary, but I'm a one man dept with a lot of hats to wear, and need some help.
Also, thanks to those who have given so much useful information on the topic of part numbering in the past. The insight has been most helpful.
Jason
I've been toiling with the task of researching, developing and implementing a part numbering system for the past few weeks and have come across an area which I need clarified.
In an older thread ( it is suggested that the a category for modifications be created. I was hoping to get a confirmation on how to define "modifications". This seems pertinent right now as we have an assembled printed circuit board that we order and then modify by replacing or removing a few parts. Essentially PCB part #XXX has two resistors removed and replaced with #YYY and. Now, I could see this being interpreted as either a modification or an assembly, or both (As I dig deeper into the CM topic I can see why this receives so much attention). Or does PCB #XXX become #ZZZ (a modification) after the removal of the resistors and then an assembly (#AAA) with the addition of the new ones?
Maybe it's all elementary, but I'm a one man dept with a lot of hats to wear, and need some help.
Also, thanks to those who have given so much useful information on the topic of part numbering in the past. The insight has been most helpful.
Jason