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I have a piece printed in white ABS, which is a half-scale replica of an unvarnished oak sculpture. After sanding off the worst of the layer lines, I'd like to paint it to get a nice wood finish. I believe that most hobby paints should stick fine, but how should I paint it to get a nice oaky appearance? Should I do layers of different colours? Will I get better results with spray or brush paints?

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    $\begingroup$ I'm voting to close this question as off-topic because this is unrelated to 3D printing. $\endgroup$ Nov 28 '18 at 15:45
  • $\begingroup$ The artistic methods used to create artificial "wood grain" patterns on plastic objects are reasonably well-published, albeit not in 3D printing forums. I would look around various "art" or "home crafts" or "furniture finishing" websites for information. $\endgroup$ Nov 28 '18 at 15:46
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I found step-by-step instructions on Instructables specific to 3D-printed parts. In summary:

  1. Sand and brush with acetone for a smooth finish (I guess the acetone vapour treatment would work as well.)
  2. Prime with plastic primer
  3. Spray-paint with a satin, nutmeg-coloured base coat
  4. Add grain with darker, acrylic paint using a fine brush
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