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making mouldable plastic

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paulstreats:
check this link
http://www.instructables.com/id/How-to-%22make%22-plastic/
it basically shows how to melt syrofoam with paint thinners, you can then mould the plastic like playdough and then leave to harden.

it might be useful to someone...

HDL_CinC_Dragon:
Thanks paul! This is going to come in handy =)

paulstreats:
ive got some in an old coffee jar right now, im just going to mould into a basic shape and leave it to set.

i'll report back on the results

Admin:
Im curious about its flexibility and hardness after its done.

nottoooily:
That sounds handy.

You can also mold small thermoplastic parts with a homemade injection molder. I made one using the clylinder and piston from a car shock absorber, an electric drill and threaded rod to inject it, and a hot-air paint stripper to melt the contents. The same device can also be used for doing extrusions, but that's even easier because you don't need to clamp a mold closed.

You can also use silicone rubber molds to duplicate other parts, but I didn't develop this idea very far and only got some distorted parts out of it.

For some shapes it's also possible to just leave some plastic sitting in a mold in the oven for a little while.



--- Quote from: paulstreats on November 03, 2007, 09:32:42 AM ---check this link
http://www.instructables.com/id/How-to-%22make%22-plastic/
it basically shows how to melt syrofoam with paint thinners, you can then mould the plastic like playdough and then leave to harden.

it might be useful to someone...



--- End quote ---

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