pouring error

Making PCB Layouts, Manual routing, Auto-routing, Copper pouring, Updating from Schematic, Manufacturing Output
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scfaria
Posts: 35
Joined: 20 May 2021, 15:32

pouring error

#1 Post by scfaria » 27 May 2021, 07:22

Just got the pour into the bottom layout and checked for errors. This error shows that a rule has been violated (TDR_pour_error). From what it is talking about it looks like one of my drill holes is a bit out of tolerance. I think it is the top left hole and I have to increase the gap to >0.025 along the x coordinate.
Attachments
TDR_hole_prop.PNG
TDR_hole_prop.PNG (10.02 KiB) Viewed 454 times
TDR_bd_pts.PNG
TDR_bd_pts.PNG (14.61 KiB) Viewed 454 times
TDR_pour_error.PNG
TDR_pour_error.PNG (31.56 KiB) Viewed 454 times

Tomg
Expert
Posts: 2028
Joined: 20 Jun 2015, 07:39

Re: pouring error

#2 Post by Tomg » 27 May 2021, 07:56

It looks like the main problem is with the copper to board edge clearance. Here's an example of where to find the initial setting (main menu: "Route" > "Route Setup..." > select the "[Traces and Vias]" tab)...
c2b.png
c2b.png (16.19 KiB) Viewed 445 times
Tom

scfaria
Posts: 35
Joined: 20 May 2021, 15:32

Re: pouring error

#3 Post by scfaria » 27 May 2021, 11:58

I tried to attach a .png file showing what the bottom PCB pour looks like, but I don't know if I can do that since it does not show up in the preview. So, before I tried to do some pour I had no errors, so the error that I have has to be because I screwed up some place during the pour. The attachment that I tried to post shows the pour in the bottom layer with the 2 holes at the bottom fully enclosed in the pour area. Not so with the 2 top parts of the pour. The top part of the pour is cutting off the top part of the holes. So that must be the problem. Since the bottom 2 holes are OK, the X and Y coordinates must be OK; therefore, I assume that the x coordinates of the top 2 holes must be OK since they mirror the x coordinates of the bottom 2 holes. That leaves only the Y coordinates being the problem source. The y coordinates of top layout is y = 1.4625, while the coordinates of the 2 holes are: x = 0.1125 & y = 1.3625 (left hole) and x = 1.5125 & y = 1.3625 (same height right hole). The hole diameters are both 0.138. So I tried to move both holes down into the board to get a better clearance. No good, now I have 3 errors. Doing a little math: the y coordinates of the layout is 1.4625, the hole radius is 0.138/2= 0.069, the y coordinate of the hole is 1.3625. So 1.3625 + 0.069 = 1.4315, so the clearance between the 2 coordinates is 0.031 which is larger than the 0.025 given in the rules.

Tomg
Expert
Posts: 2028
Joined: 20 Jun 2015, 07:39

Re: pouring error

#4 Post by Tomg » 27 May 2021, 14:58

Did you update the pour after the changes?
Tom

scfaria
Posts: 35
Joined: 20 May 2021, 15:32

Re: pouring error

#5 Post by scfaria » 28 May 2021, 15:57

I found the error! I took out the pour and then reinstalled a new pour, only this time I made sure the pouring outline was well within the board layout and the errors went away! Seems like I made the pour outline a little too big the first time. Maybe if the board layout was move visible this could have been prevented. Case closed.
syd/wt1v

Tomg
Expert
Posts: 2028
Joined: 20 Jun 2015, 07:39

Re: pouring error

#6 Post by Tomg » 29 May 2021, 02:38

An easy way to fill the entire layer with a copper pour is to draw its outline anywhere within the Board Outline. Make it any shape and size and enable the "[x]Depending on Board" option located under the "[Border]" tab of the Place Copper Pour dialog window before clicking on "OK". Here is an example that starts with a small triangular copper pour shape...
cp1.png
cp1.png (23.25 KiB) Viewed 432 times
...which ends up filling out the entire layer because the "[x]Depending on Board" option was enabled...
cp2.png
cp2.png (12.61 KiB) Viewed 432 times
Tom

scfaria
Posts: 35
Joined: 20 May 2021, 15:32

Re: pouring error

#7 Post by scfaria » 29 May 2021, 06:46

problem solved.
Thanks for help!

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