MadModder
Gallery, Projects and General => Gallery => Topic started by: John Hill on March 04, 2017, 10:56:25 PM
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Things got a little out of hand at our meeting last week so I produced this today...
(https://c1.staticflickr.com/4/3815/33127349461_b51d52ca5d_k.jpg)
...just a little gavel made from recycled milk and shampoo bottles etc.
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Have you by chance been watching this bloke?
He does weird and wacky things like that, fun to watch. :clap:
Plus you might come up with some other novel implements to keep the meeting in order.
John B
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How did you manage to render down the waste plastic to make the solid shapes you have ?
Anthony.
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I too have been collecting the same kind of plastic ( #2 – HDPE (High Density Polyethylene)) to "render down". I find the vegetable nets are particularly good, you don't need to chop it up! I've made a couple of mallets from it, on a conventional shape, the other, a wood carvers type mallet!
Regards, Matthew
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How did you manage to render down the waste plastic to make the solid shapes you have ?
Anthony.
I just chop it up and melt in a toaster oven at 180C, adding more as the pile melts down. I wear heavy leather gloves and knead the molten lump to get the air out then put it in a piece of water pipe with a cap on one end and put as much pressure as I can in a hydraulic press.
It is a very therapeutic activity!
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John,
intresting, I use a variation on the same theme, to date I melt the chopped pieces in a tin can in the oven, pressing down the mass with a piece of wood to remove air bubbles. I use the tin can to form the slug of plastic which I either press the handle in whilst it is semi molten or drill a hole in the cooled block to mount it.
i think a two piece hinged mould would be interesting to try!
Regards, Matthew.
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I never knew you could do that. I am going to give it ago ... thank you to all..
Anthony.
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That looks amazing. I was unaware of this process you explained.
:beer: :clap:
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This guy has a few interesting videos on making various machines to recycle plastic..
-russ
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I made two HDPE billets today.
There has always been a problem getting the plastic hot enough without some of it scorching so I did it a bit differently today. I heated the plastic until it was mostly up to temperature then packed it into the steel moulds but instead of putting the pressure on and letting it cool I put the steel moulds in the oven for another 45 minutes or so before moving to the press and putting the squeeze on. Perfect results, the best I have ever done!
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No pictures - it never happened :lol:
:worthless:
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35C in the workshop, hot oven, leather gloves and gobbits of sticky semi molten plastic, do you think I am going to reach for my camera? :lol:
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Wimp :lol:
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This is neat, but just don't tell me that you're trying to turn the crap on the lathe when you're done. I have tricks for working with stringy, melty plastic like this but I would always rather not see the stuff come my way.
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HDPE turning is child's play!
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Perhaps I'm mistaken then.... does it machine differently than UHMW(PE)?
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I dont know how other plastics machine but this stuff typically give small tightly curled chips, it is a bit stringy under some circumstances. I have never tried to run so fast that it got melty and sticky.