Rebuilding plastic parts?

DragonMaster · 20th November 2005, 12:04 AM

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.

Nordic · 20th November 2005, 04:26 AM

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.

peace brainerd · 21st November 2005, 12:14 AM

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.

20th November 2005, 12:04 AM	#1
DragonMaster diyAudio Member Join Date: Dec 2003 Location: Montreal	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. __________________ Antoine http://dmsaudio.ca/

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20th November 2005, 04:26 AM	#2
Nordic diyAudio Member Join Date: Sep 2005	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.

21st November 2005, 12:14 AM	#3
peace brainerd diyAudio Member Join Date: Nov 2004	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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