Subject:
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Re: Strengthening Gears
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Newsgroups:
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lugnet.technic
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Date:
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Tue, 5 Mar 2002 02:11:41 GMT
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Viewed:
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3510 times
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In lugnet.technic, Thomas Avery writes:
> In lugnet.technic, David Schilling writes:
> <snip>
> > if you used hot water, the plastic will start to deform. Some instructions
> > specifically state this. For example:
> > http://www.brickshelf.com/cgi-bin/gallery.cgi?i=131756
>
> Although this is a good instruction for "general use", I don't think a
> single piece by itself will deform. If you handle it carefully (i.e. don't
> squeeze it hard by picking it out of the boiling water with tongs), it may
> not deform. But then I don't know at what point the ABS will deform under
> its own weight, and I'm probably not going to try this :-)
>
> TJ
A quick search on Google shows that ABS (Acrylonitrile-butadiene-styrene)
has a melting point of 103-128°C. Since water boils at 100°C, I don't have
any doubt that you would see some deformation by that point.
--
David Schilling
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Message has 2 Replies:
 | | Re: Strengthening Gears
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| (...) Oh people people people!!! Stop what you're doing or thinking!!! (URL) a boo halfway down the page!!! I mean this was, to date, the most traumatic event of my life!!!! (well, not really but it makes a great story when I talk to my LEGO (...) (22 years ago, 5-Mar-02, to lugnet.technic)
| | | Melting Point of ABS (Re: Strengthening Gears)
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| (...) There are different grades of ABS, each having different mechanical properties. I found an extensive resource on materials at: (URL) ABS property data can be found here: (URL) picked 3 grades of ABS that seemed likely to be the type(s) that (...) (22 years ago, 5-Mar-02, to lugnet.technic)
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Message is in Reply To:
| | Re: Strengthening Gears
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| In lugnet.technic, David Schilling writes: <snip> (...) single piece by itself will deform. If you handle it carefully (i.e. don't squeeze it hard by picking it out of the boiling water with tongs), it may not deform. But then I don't know at what (...) (22 years ago, 5-Mar-02, to lugnet.technic)
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