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Old 20th November 2005, 01:04 AM   #1
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Default Rebuilding plastic parts?

There is a broken tooth on a plastic gear of my PlayStation's transport. Anyone knows what I can use to rebuild it?

I was thinking to make a mold with the other teeth, turn the gear and fill something inside. Now the problem is -what- do I put in there. I know that normally crazyglue and plastic powder works but there will be a mold in there and I don't have any plastic powder.
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Old 20th November 2005, 05:26 AM   #2
Nordic is offline Nordic  South Africa
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Use superglue mixed with baking soda... my dad used it for years to fix old cheap watches where the strap pins tended to break the pin hole away... the soda stops the glue from melting the plastic.

Maybe fill the whole missing area and just use a small file to shape it... shouldn't be that hard to get a reasonable tooth.
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Old 21st November 2005, 01:14 AM   #3
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Wouldn't a little 30minute epoxy filled with chopped nylon or fiberglass
be the ticket? both are pretty readily available.

Plastic gears are often made of self lubricating, very difficult to bond to,
nylon or polyethylene - like the bottle that superglue comes in. You might have some luck seriously roughing up the exposed surfaces or drilling a lot of tiny holes into it.
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Old 3rd June 2013, 06:00 PM   #4
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Any update on methodology of rebuilding nylon,plastic teeth.
Thanks. I have worn nylon teeth in a window winder. Worn in the middle but outer edges will help to form a mould template, I think?
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Old 4th June 2013, 12:02 AM   #5
Enzo is offline Enzo  United States
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Or take the real part from a dead unit.
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Old 10th June 2013, 02:46 AM   #6
Magz is offline Magz  United States
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3D printer. If it can make a working gun it can make a gear.
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Old 13th June 2013, 08:25 PM   #7
JoeDJ is offline JoeDJ  United States
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I saw on the news today that Amazon will start selling 3D printers starting at about $1,000 US.
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