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Old 4th Jul 2021, 3:57 pm   #1
Join Date: Oct 2020
Location: Sheffield, South Yorkshire, UK.
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Default 3D printed button colour

Hello, Any ideas on what I can do to get the Bakelite colour for the control button? Would it be easier to paint the original one a modern colour to match the 2 that I have printed out?

Thanks, Barry.
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Old 4th Jul 2021, 6:52 pm   #2
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Join Date: Mar 2008
Location: Virginia Water, Surrey, UK.
Posts: 2,225
Default Re: 3D printed button colour

Apparently dyes designed for polyester work well, but take care if using heated dye to improve colour, as PLA deforms at a surprisingly low temperature. It would probably be best to print a full set of new knobs and dye them the same way.
Even alcohol-based Sharpie pens can be used for colouring, although I have not tried.
Let us know how you get on!
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Old 4th Jul 2021, 11:23 pm   #3
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Location: Tintinara, South Australia, Australia
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Default Re: 3D printed button colour

You can paint 3d prints - some detail here

A 'net search with 'painting PLA' will bring more info.
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Old 5th Jul 2021, 6:50 am   #4
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Location: Bath, Somerset, UK.
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Default Re: 3D printed button colour

Hi, I agree.

Make a whole set and paint/dye them all the same. Then you will have what looks like an intentional set, rather than a mis-match.

Alternatively, you could visit Retrotech and find a replacment in the bins of spares people have. I've found every control knob replacment I've needed at such places.

The printed ones will be fine until you find an original or three.

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Old 25th Jul 2021, 11:15 pm   #5
Join Date: May 2021
Location: Chichester, West Sussex, UK.
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Default Re: 3D printed button colour

I have changed from PLA to PETG as I found this works better at the higher temps and is waterproof.

I have been creating some buttons & knobs for a flight sim project I've been working on for a while. I used Halfords primer and various Tamiya acrylic paints or Halfords spray paints on top with good effect on both PLA and PETG.

Just be patient between coats and don't make them too thick as I got a crackle effect when I was impatient and laid on a lot of paint at once. Remember to key the print first with sandpaper.
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