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[SOLVED] No Solid areas not removing copper in Footprint

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andyfierman 3 years ago

I have created a footprint in which the rounded ends of the left and right hand top layer pads are to be squared off by removing them using a pair of top layer Solid Region set to No Solid. I the screenshot below, the upper No Solid region is highlighted. The lower region can be seen as a thin red line. ![image.png](//image.easyeda.com/pullimage/2t6BQWLKOMYSy2eA1O3fRFbdygljbqCvWxQxsjFi.png) The problem is that the gerber files show that the No Solid regions are having no effect: ![wedge_base_gerber.png](//image.easyeda.com/pullimage/noGz5PE8ZZiLZL5xXUEHtUpTnhbnTLvF2s5vZDZB.png) The image above is from gerbv. The JLCPCB viewer shows the same: the rounded ends are not cut off by the No Solid region.

Chrome 87.0.4280.88 Linux EasyEDA 6.4.14

Comments

andreasbernhofer 3 years ago

Afaik "No Solid" only affects solid regions and copper areas, not tracks, since they are usually placed deliberately into such regions. You can create the desired shape using a solid region instead. It supports Arcs and straight lines as contour.

Chrome 88.0.4324.150 Windows 10 EasyEDA 6.4.14

andreasbernhofer 3 years ago

@andyfierman oops, didn't see that this was posted as bug report by you 🙈 But I'm curious, did you use tracks to construct the round shapes on the sides?

Chrome 88.0.4324.150 Windows 10 EasyEDA 6.4.14

andyfierman 3 years ago

@andreasbernhofer, Hah! My secret!! No, seriously: I used Arcs and then converted them to Pads. I applied them but the No Solid regions did not remove the copper of the Arc ends _before_ I converted them to Pads. ;)

Chrome 88.0.4324.150 Windows 10 EasyEDA 6.4.14

andreasbernhofer 3 years ago

I knew it ;) But I actually don't think this is an error. "No solid" regions remove copper from Copper Areas, but not from Tracks, Pads or Solid Regions. And I actually expect this to be by design. I would expect that I can place parts into "No solid" areas and connect them just fine. E.g. for placing a PCB antenna footprint into a "No solid" region that is surrounded by the copper pour of my PCB. ![2021-02-16 19_28_26-Window.png](//image.easyeda.com/pullimage/fy5F7npuMbqXmob3ACvhbTHRoawAlNy8i21wNsGd.png)

Chrome 88.0.4324.150 Windows 10 EasyEDA 6.4.14

andyfierman 3 years ago

@andreasbernhofer, Good point. I'm not sure but maybe it is possible to create the shape as an Arc then convert it to a polygon and edit the points to square off the ends and then convert the polygon to a pad...

Chrome 88.0.4324.150 Linux EasyEDA 6.4.14

mrtom528 3 years ago

@andyfierman, Something like this? _ ![NO-SOLID-CREW_01.png](//image.easyeda.com/pullimage/uKY6cYI1x8XM90qrhzikUYx3dPbYGW4ldhwJrrrL.png) ![Untitled-2.png](//image.easyeda.com/pullimage/2jNud7KKicet6ZpAp4kQ4GmnyUk3aH485dYjdRka.png) _ Regards.

Firefox 85.0 Windows 10 EasyEDA 6.4.7

andyfierman 3 years ago

@mrtom528, @andreasbernhofer, Yes. And it's easy to do because the pads are polygons so I can edit them to square off the ends using the Edit Points tool. So, I've marked this as SOLVED. I may edit the title and change it to a Tips and Skill topic later on. :)

Chrome 88.0.4324.150 Linux EasyEDA 6.4.14

mrtom528 3 years ago

@andyfierman, Splendid. I opted for a comnpletely different method, I was just making sure I was aiming at the right goal. I created a circular array of 'tracks' of length equal to the 'width' of the curved pads, 360 of them. I then deleted what I didn't need, selected the rest and hit 'expose copper'. I added a small 'pad' in each for DRC numbering but wasn't sure if it was a requirement. Pretty easy to do in hindsight although it did take several G+T's to get there. _ Regards.

Firefox 85.0 Windows 10 EasyEDA 6.4.7

andyfierman 3 years ago

That's where I was going wrong. I just had tea and a bun!

Chrome 88.0.4324.152 AndroidOS 10 EasyEDA 6.4.14

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