topic Re: How to create diagonal cross hatched plane on PCB in Fusion Electronics Forum

How to create diagonal cross hatched plane on PCB

gr8flash — Wed, 27 Apr 2022 21:42:02 GMT

It seems that Fusion 360 Electronic only allows vertical/Horizontal cross hatched fill in Polygon Pour. How can we create a DIAGONALLY cross hatched plane on PCB? Please help.

Thanks

Re: How to create diagonal cross hatched plane on PCB

jesper8W75R — Thu, 28 Apr 2022 00:51:51 GMT

I'm afraid you'll have to make your board with all components in a 45 degree angle. 😉

This was originally intended as a joke, but I just checked and it's actually (sorta) feasible.

After your board is complete, rotate it 45 degrees, and voila, diagonal polygon fill.

Re: How to create diagonal cross hatched plane on PCB

jorge_garcia — Thu, 28 Apr 2022 17:46:11 GMT

Hi @gr8flash ,

I'm curious, why do you want the polygons diagonally hatched?

Best Regards,

Re: How to create diagonal cross hatched plane on PCB

gr8flash — Thu, 28 Apr 2022 19:10:14 GMT

Hi Jorge,

Most if not all of the PCB's that have cross hatched ground shield out there have diagonal cross-hatch lines. My guess is that it helps minimize the cross section of the traces above or below it. Also, it looks much better with the diagonal hatch. Another reason (which is more of an aesthetic) is that with the vertical and horizontal hatch, it is difficult to space the lines evenly without having the last line parallel too close to the edge of the polygon

Thanks,

Don

Re: How to create diagonal cross hatched plane on PCB

gr8flash — Thu, 28 Apr 2022 19:14:17 GMT

I could not figure out how to rotate the whole PCB 45 degree. Also, it is not easy to draw a polygon at 45 degree offset. Thanks,

Re: How to create diagonal cross hatched plane on PCB

jesper8W75R — Fri, 29 Apr 2022 01:47:12 GMT

Just use SELECT to mark everything, select ROTATE (or MOVE), enter 45 in the Rotate field and use the group move/rotate function (Cmd + Right-Click on Mac, not sure what it is on Windows).

Enable all layers before you do this, to make sure you get everything with you.

Re: How to create diagonal cross hatched plane on PCB

jorge_garcia — Fri, 29 Apr 2022 18:51:32 GMT

Hi @gr8flash ,

Thanks for the clarification, I had completely misunderstood what you were talking about, my mistake. Follow Jesper's suggestion if you want it to be diagonal. From a functional perspective there is no benefit in diagonal vs straight but I get that aesthetically it might look better.

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

Best Regards,

Re: How to create diagonal cross hatched plane on PCB

gr8flash — Fri, 29 Apr 2022 19:10:55 GMT

Can it be an option in the future?

Thanks,

Re: How to create diagonal cross hatched plane on PCB

gr8flash — Sat, 30 Apr 2022 03:25:04 GMT

Rotating the whole board does not work on my Windows 10 PC. Thanks anyway.

Re: How to create diagonal cross hatched plane on PCB

jesper8W75R — Sat, 30 Apr 2022 09:14:49 GMT

You might be doing something wrong, that should definitely be possible.
Otherwise, you should post a bug report, that is a serious problem.

Re: How to create diagonal cross hatched plane on PCB

gr8flash — Sat, 30 Apr 2022 14:43:43 GMT

I finally was able to rotate the board 45 degree (Thanks!) poured a polygon with diagonal hatch relative to the board position. However, when I rotated the board back to 0 degree, the diagonal hatch did not stick. The hatch seems to always be vertical/horizontal to the screen regardless of the position of the PCB. I am back to square one. Does that means I have to export Gerber file with the PCB at 45 degree to get the diagonal hatch? Or did I miss something? I tried to save the PCB at 45 degree offset and then rotate it after but the hatch did not stay diagonal.

Thanks,

Re: How to create diagonal cross hatched plane on PCB

jesper8W75R — Sun, 01 May 2022 02:48:21 GMT

Polygons, with or without hatch is dynamically processed, so they won't "stick" with a save.
You would have to export to Gerbers in the rotated state, to get the diagonal hatch.
I'm no manufacturing expert, but I would thing it would not matter for production as they can, for panel efficiency reasons, just rotate it back.
Worst case, a slightly higher PCB cost.