I've got this thing I drew using the brush tool that's suppose to be a panel for some project of mine and I'm trying to get some nice defined fillets to each hole:

enter image description here

What would be the easiest way to achieve it as efficiently as possible because I believe there are at least 100 corners there even if there's a way to select it and that's no task for a human.

  • Points for the sneaky way you convinced us you're a human. Could you please check this checkbox though? – Joonas Nov 28 at 7:54

It would drive me crazy if I had to alter each corner manually. So... I'd use a more global method....

  • Expand Strokes (Object > Expand / Copy only outer compound rectangle for later use)
  • Merge shapes (Pathfinder Panel > Merge)
  • Apply Effect (Effect > Stylize > Round Corners)
  • Expand Effect (Object > Expand Appearance)
  • Fix Outer 4 corners (Paste rectangle, Pathfinder > Unite)

enter image description here

The last 2 steps merely square off the outer 4 corners again. You could do that manually by removing the curves and aligning anchors if desired.

  • Love it. The reason I'd specified multi-select with the direct select tool was that I presumed that certain more acute angles might need different fillet radii for ease of manufacture, and I wanted to demonstrate a method which left more control to the OP - but I completely agree with you - absent that need, I'd go loopy doing a bunch of corners individually too - your answer is excellent, IMHO. – GerardFalla Nov 28 at 15:54
  • Great one! thank you very much for the huge effort! I eventually just "Expand appearance" the traced then round corners expand appearance again and merged them in the end. – Michael Nov 28 at 23:48
  • Select all
  • Menu Object -> Expand
  • Shape Builder Tool

enter image description here

  • Choose a fill color and click the holes

grid

  • Danielillo - the OP said "fillets" not "fills" - that's a US CAD draughting term for the rounding of a corner used to make a design more manufacturable... so your answer gets them halfway there - they need to Pathfinder>Union all the black, then select all corners and round the corners uniformly with the rounded corner tool. – GerardFalla Nov 27 at 22:33
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    Ah , ok, didn't get it right. – Danielillo Nov 27 at 22:45
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    Well this is also a useful thing to know thanks! – Michael Nov 28 at 23:52

Take Danielillo's excellent answer, then use Pathfinder to union all the black elements together. Once you've done this select all the corners using the direct selection tool, and then use the rounded corner tool to give the fillets you prefer or need for the given manufacturing method.

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