Fusion Electronics
Working an electronics project and need help with the schematic, the PCB, or making your components? Join the discussion as our community of electronic design specialists and industry experts provide you their insight and best practices.
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Plated Slot not Rendering in 3D View

Message 1 of 5
170 Views, 4 Replies

Plated Slot not Rendering in 3D View

Hello All,


I've created a design that appears to be manufacturable by the gerber outputs.


I am, however, noticing that some elements of my plated slots do not appear to be fully working from Fusion 360 Electronics' perspective.


I have two main issues:
1. The plated slots appear correctly in 2D Board view, but do not render at all in 3D Board view

a. They also appear correctly in exported gerbers

b. The outlines of the slots (as on the Milling layer) are visible in the 3D Board view

2. There is a concerning intrusion by a second power plane beneath one of the slots


Closeup of slot in 2D Board view. Appears correct, but an overlapping power plane on the bottom layer is "trimmed" differently than the power plane on the top layer and the main power plane on the bottom layer. Note the very thin "U" or horseshoe shape at the bottom of the slot profile. Any clues on why this plane is not trimmed properly?

2D Board Closeup.png


Overview of the 2D Board view. Note the two slots just left of center, aligned vertically. Also note the roughly triangular power plane/polygon on the bottom layer, visible at bottom center.

2D Board Overview.png


Closeup of the Footprint for the offending component. Comprised of a large oblong pad with small center drill, and a ring of mutually connected vias. Milling layer outline crafted by lines and arcs.

2D Footprint Closeup.png


An overview of the footprint showing properties of a line within the milling outline.

2D Footprint Line Properties.png


Overview of the component footprint, showing both slots.

2D Footprint Overview.png


A pair of screenshots showing the lack of rendered slot in the 3D Board view. The image on the left shows a selectable line corresponding to a line within the Milling shape from the footprint (the data is there, but the 3D View isn't acting on it?) The image on the right also shows the profile outline of the pad, which curiously has a circle in the center not corresponding to any visible feature in the footprint. This is reminiscent of an old hole I had in the center of the component pad that had the same diameter as the milled slot. That hole has long since been resized to that seen in the footprint. Is Fusion 360 Electronics blending old and new footprint data somehow?

3D Board Closeup Milling Line.png3D Board Closeup Pad Highlight.png


A broad overview of the 3D Board

3D Board Overview.png


Any clues as to why the plated slots are not rendering in the 3D Board view, but appear to be correctly interpreted otherwise?


I should also note I've had "buggy" moments where newly created vias that were masked and connecting two planes/polygons would refused to render until I created a random via elsewhere on the board that was not connected to the polygons. I shrugged it off once I found the workaround, but perhaps it is related?


Thank you!


P.S.: Let me know how to appropriately share the design files if/when necessary.

Message 2 of 5

Hi @evan.censystech ,


I hope you're doing well. Currently the 3D PCB doesn't reflect slots and arbitrary pad shapes properly so this is not unexpected. The ultimate source of truth are the gerber files if those are OK then you don't have to worry about this inconsistency.


Eventually we want to get to a point where the 2D PCB and the 3D PCB always look correct.


Let me know if there's anything else I can do for you.


Best Regards,

Jorge Garcia
​Product Support Specialist for Fusion 360 and EAGLE

Kudos are much appreciated if the information I have shared is helpful to you and/or others.

Did this resolve your issue? Please accept it "As a Solution" so others may benefit from it.
Message 3 of 5



Thank you for your candor on this.

Looking forward to improvements as they come!



Message 4 of 5

Hi @evan.censystech 

I hope you are doing well!

Now we support the Slot PTH pad in Fusion 360 V2.0.13158+.

You can find it in the Footprint workspace.

Please have a try, thanks!

Screen Shot 2022-05-30 at 10.58.00.png


Panpan Fan

Message 5 of 5
in reply to: panpan_fan

@panpan_fan Well, at least they seem to render fine UNDER THE STUPID DEFAULT BOX.
When will you add the option to allow footprints WITHOUT 3D models?
Or simply REMOVE that silly default box that is the root to all evil.

Can't find what you're looking for? Ask the community or share your knowledge.

Post to forums