Mechanical(ECO) layers displayed as silkscreen
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Vasyl Skral
I notice that once you add footprint(from *.MOD) to part you received all shapes from all non-signal(not copper) layers on a single layer. And it looks like everything is on the silkscreen layer right now.
But this is wrong. I don't need all these lines on PCB I need only shapes from the silkscreen layer(if you open MOD file the silkscreen will be layer "21").
Yes, during PCB design I need mechanical(in KiCAD these layers are called ECO or "Engineering Change Order") layers to understand what I have between these pads, but I will not send it to a PCB manufacturer.
I think we are losing information about layers, we can't separate the silkscreen layer's shapes from other layers. Also, we don't have solder mask and paste mask layers at all.
Gretel Bot
open
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Bryan Hoyt
under review
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Bryan Hoyt
Thanks Vasyl Skral, we'll look into that. Would you be able to attach the .mod file you're importing, so we can test this with a real-world example?
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Vasyl Skral
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Bryan Hoyt
Vasyl Skral: Thanks, except I can't access the google drive link -- are you able to set the sharing mode to "Anyone with the link can view"?
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Vasyl Skral
Bryan Hoyt: access granted
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Bryan Hoyt
Oh, just got it. Thanks!
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Bryan Hoyt
Ok, so just a quick follow up on this: our current plan is to re-categorise this as a feature request (not a bug report), since we don't currently support ECO layers. We'll prioritise accordingly from there!
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Vasyl Skral
Here is an example: how it looks on PCB designed in Flux and how it should look. This line(screenshot #2) shows where should be the cathode of the LED. But as we have extra lines (from other layers) we lose information about the cathode position. As a result, the manufacturer pause the assembly and asked me where the cathode should be.
Quote:
"Hi Sir or madam,
Well got your order with many thanks.
Sorry to bother you, but there is one thing that we want to confirm with you about your SMT order before proceeding.
Since we are not so sure about the polarities of the components LED are correct or not. Could you please kindly check if the polarities and placements of the components are correct in the below picture? Is it okay to proceed with production?
Your early reply will be highly appreciated, thank you so much!
"
The same for U1. And this super simple PCB.
So as you see it costs time to a manufacturer and for the user to check all components but also can be for the reason of wrong PCB assembly, waste of money and time, damaging to equipment.