Part of the issue is that there are a lot of names for the same function: Also for a very formal release, I will add a note to the assembly drawing calling out what res des are “Do not populate” This system is not perfect but it is what I do. with explicit instructions as to what is populated and not populated. This parameter then gets exported to the BOM. In schematic, I will modify the component instances that should not be populated to DNI (Do Not Install). In Altium, my footprints have a parameter that is “Populated” and by default it is assigned to YES. So many questions and I would love to hear what other people are doing for this. This would require some new code to be written for the BOM generation script as far as I know.īut is there a better way? Do no fits belong in the BOM at all? What about assembly? Is there a way to exclude them from pick and place? Or to clarify that it’s a no fit if doing hand assembly? In KiCAD is there a way to do this? I know I could create a field like “No Fit” and if “yes” then exclude from the BOM. I know in Altium that you can specify a component to be excluded from the BOM in the schematic (and a note could be placed on the schematic that it’s a NF component so it’s not forgotten). It at least splits out the lines in the BOM for the No Fit components. You can double up references and have space issues. To combat the manufacturer question (and remove the amount of post-processing on the BOM), I thought of doing “NF-ref”, but it has the same problems when doing the design. There are 4 designators, but only quantity of 3 needed? In the BOM it’s okay, but I’ve had questions about the quantities from manufacturers (rightly so). In space constrained boards, this is a big problem. You can double up on a reference because C4 is now “C4-NF”. There are also designator errors when adding a new component. I’ve been putting “ref-NF” in my designs, but then you have to deal with the footprint reference having the “-NF” on the PCB. I’m using a mix of Altium and KiCAD (work and home) and I don’t know a good way of dealing with them yet. I’ve been attempting to figure out how to handle No Fit components for a while now.
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