Hi,

I submitted my gerber file to pcbway.com but it failed at first.

The review man at pcbway.com says: "please confirm if this is one or two layer pcb" and he attached this screenshot:


I do not understand the screenshot or why he thinks it might be only 1 layer.

As far as I know it should be 2 layers.

Can you help me understand?

thanks in advance.

Christian

 

Here is the Gerber list I submitted to Oshpark:


Notice that similar layers are distinguished by "top" or "bottom" or "t" and "b" respectively. Yours seem to use "b" for bottom and "f" for top. ("f" = first???). Of course, drills, slots, and so forth are not distinguished as top or bottom.

Can you edit the Gerber names that denote layers to use "b" and "t" or top and bottom as appropriate and resubmit?

Edit: Two layers are so common that a single layer board often requires a specific note or symbol.

 

I think its F for Front.

I think the review man can choose the right file for the layers since he ask. I'll try.

 

EDIT2: There are lots of free Gerber viewers on-line. Some require a download; some can be used on-line. Even some board houses will allow you to upload your Gerbers and view them.

I use Easy Logix (https://www.easylogix.de/products_detail.php?prog_id=1 ) for my last project, but any that work will tell you what you need. That is the outline should be clear and top and bottom designs should be distinct.

Interesting top/bottom or front/back -- depends on how you hold the board. Frankly, I hadn't considered the double meaning of "b."

 

To me, you have two "_cu" files, which I assume are copper pours. You have one visible, the layer with the blue lines. However, I do not see a copper pour for the other layer. That may raise flags. Maybe either fix the other layer copper pour, or remove it.
As a side note, your traces are real close to pads, maybe review the design rules for the routing and make the separation larger. For a simple design as this, no need to run the traces real close to other pads,

 

I actually didn't define any rules for tracing. Everything is with KiCad standard settings.
Also the naming of layers.

The traces are routed automatically.

Should there be copper pour for both layers? cant the layers settle with one?
I actually already ordered.

 

I don't think your design will benefit from a ground pour. It is just common practice. So, having only one won't matter..

 

KiCAD ships with a gerber viewer.
Here is a pcbway support page for KiCAD.
Maybe he was confused by the text on the copper layer and thought it might be a silk screen.