Creation of complicated dot pattern
If you have a reference image or a pattern then you may use Inkscape for designing such pattern. it will be good if you have and black and white image. This software converts image file to a vector file. you can download the software here, It's free
https://inkscape.org/en/download/
I think I may explain it better with an example-
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Step 1:
I just downloaded this file to use as a reference for the design.
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Step 2:
Now open the inkscape and drag the image file in to it.
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Step 3:
Now just adjust the dimensions for your sketch.
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Step 4:
Go to Path > Trace Bitmap. In the menu, select the brightness cutoff. you may adjust the threshold here. then just place ok and close the menu.
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Step 5:
Now just drag the image outside. you may see there are two of the pics now. one which we just dragged out is vector image.
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Step 6:
Delete the other image. adjust the vector image accordingly.
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Step 7:
Now save file in dxf format. Don't change any setting in next dialog box. Just click ok and that's it
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Step 8:
Open your 3d model in solidworks.
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Step 9:
select a plane you want that sketch on and go to Insert > DXF/DWG and insert the saved vector file from its location.
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Step 10:
Import it as a 2d sketch and click on finish.
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Step 11:
You may see the sketch now. although it may require some scaling and moving.
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Step 12:
after adjusting its size you may use any required feature you want to use like extrude boss up to a surface or extrude cut offset a surface etc.
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Step 13:
That's it. you may watch this video to learn more about inkscape.
