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Pads are taller than traces

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Message 1 of 3
s3nashville
137 Views, 2 Replies

Pads are taller than traces

Hey Folx,

Trying to mill a simple PCB and I keep running into a problem that my pads have a height taller than my traces.  Let me try to explain this a little better.  My design is supposed to use .035mm thick copper cladding on the blank PCB.  After designing the circuit and placing the components I next go into the 3D PCB screen to generate my gcode.  When I zoom into the part to examine it I see that the traces are .035mm thick as they are suppose to be and the outline of the pads are also part of the trace.  So far so good.  The problem is that a duplicate of the pads is sitting on top of the traces built out of an additional .035mm of copper that magically appeared out of nowhere.  In the area of these mystery pads the total thickness of the copper is .07mm.  This becomes a huge problem when I try to create gcode because no matter what I do the CAM processor wants to cut out those mystery pads before it cuts the traces.  I can't seem to find any way to deselect or delete those pads.  Furthermore, when I go back into the board layout and look at my layer properties I see that the pad thickness is supposed to be 0.  Where Fusion is coming up with the additional .035mm of copper I have no idea.  Do you?

Thanks,

Jessica

Pads and Traces.jpg

Pad Settings.jpg

 

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2 REPLIES 2
Message 2 of 3

Hi @s3nashville ,

 

Sorry to hear that you're having trouble.

Could you please try to check the checkbox of "Stop Layer Geometry" when pushing to 3D PCB and check whether the pad height is same to your trace now? Hope it helps.

Screen Shot 2023-01-23 at 14.13.26.png

Screen Shot 2023-01-23 at 14.13.13.png

 

Best regards,

Helen



Helen Chen
Principle QA for Fusion 360 Electronics
Message 3 of 3

BTW, in CAM Processor, you could try to include(select)/exclude(deselect) the layer as you want. Hope it helps.

Screen Shot 2023-01-23 at 14.23.51.png



Helen Chen
Principle QA for Fusion 360 Electronics

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