Lines On Pcb Layer

Community PCB Design
1

Hello,

Recently, I designed a single-sided PCB for the popular “chirping cricket”. I used Sparkfun gerber file to generate the Bottom layer. However, when I printed the PCB file with my laser printer, I get extremely thin horizontal lines right across the PCB. Please see the image of PCB Bottom Layer below:

http://img22.mediafire.com/5b005c520201 … 57b06g.jpg

I have enabled the vias, pads, bstop and bottom layer when generating the gerber file. Because I am planning to use the toner transfer method, I suspect these lines may have some adverse effect.

Has anyone come across this issue before?

Can someone tell me how to eradicate these lines?

Thanks,

Edwards

2

You need to adjust your trace width and spacing in the polygon pour. Just make sure your spacing is equal or less than the trace width. You may also want to make sure that hatch isn’t enabled.

3

Thanks a lot macegr for pointing out my mistake. :slight_smile:

I set the spacing of the polygon to 50mils and width to 10mils, which is highly undesirable. :o

4

This is just something that happens with printing in EAGLE, don’t change anything in the design or gerbers as nothing is wrong.

:slight_smile:

5

View your gerbers in a decent 3rd party gerber viewer (e.g. Viewmate) to ensure the pours are as you expect.