Help me find a 3D parts printer...OK, but first you could try to make a replacement
Question:
Where would I find someone who could scan a rare plastic part, repair imperfections digitally and then print out a new, correct part on a 3D printer?
Answer:
For plastic parts it is fairly easy to replicate your own at home. You would first repair any damage or cracks in your part, using plastic filler and a little sandpaper, and then go to a crafts store and pick up a plastic resin casting kit. Use the silicone rubber compound to make your mold. Place the part in a small container and coat it with a release agent. Pour in the silicone and let it set up according to the instructions with the kit.
Next, mix the casting resin using the correct ratio of the provided chemicals to make a hard knob. (Casting resin can also be used to make synthetic rubber components that are soft and flexible depending on the ratio of resin to hardening agent.) Treat the mold to a release agent, and then pour in the mixture. Let it cure as prescribed in the directions. The result should be a shiny new knob.
And if your classic’s knobs are black you are in luck, because a black coloring solution is available at the craft store. Otherwise, let your knob cure for a few days, and then paint it to match the rest of them on your dash. To get a good match, take an existing knob to an automotive paint store and have them mix up a rattle can of paint to match.
If you want to try 3D printing, there are half a dozen such services in your area. Call them with your particulars. Here is one:
Plotnet
