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Can aSolder mask be edited / trimmed away?

Posted: 14 May 2018, 12:35
by clivecad
When designing a PCB recently, I added a solder mask to the bottom layer, using the circles / squares to surround component pads.
Everything seemed fine, until I reviewed the finished board, and noticed that I had misaligned some mask "holes". :shock: :lol: :lol:
However, clicking any point on the mask highlights the entire mask.
Is there a method of pruning / editing a finished or partially finished mask?

Re: Can aSolder mask be edited / trimmed away?

Posted: 14 May 2018, 15:29
by Tomg
You can create custom mask shapes, but it seems like you may not be aware that masks are automatically created. This is a common trap for new DipTrace users because automatic masks are not displayed in the PCB Layout editor's Design Area; only custom masks are displayed there. See this thread for a primer on how masks are handled by DipTrace - viewtopic.php?f=4&t=11858&p=23255. However, if you are already aware of all of this then I'm sorry for the diversion. In that case, please feel free to ask more questions about custom masks.

Re: Can aSolder mask be edited / trimmed away?

Posted: 20 May 2018, 22:19
by clivecad
I found what I was doing wrong.
Initially, when laying shapes for the mask, I mistakenly thought the pale cyan overlay was the actual shellac mask, so laid squares, circles and polygons to cover the entire board, leaving only the pads 'clear'. :shock:
After viewing the 3D rendering, I deleted the mask then used solid circles / squares to cover only the pads - success. yippee!!
Ie - I found that the user deletes the solder-resist, rather than apply it to the board. :D