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Old 10th May 2007, 6:30 PM   #1
elementalelf Thread Starter
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Default dont sweep your perspex sawdust

you know the dust you get all over the place after jigsawwing or sanding perspex?
collect as much of that as you can into a cup, fill with water, pespex should stay at the bottom, dirt and shit floats to the top.
scoop the dirt off the top
empty water and leave dust to dry.

whenever you need something to glue 2 pieces of perspex together, get as much dust as you need, put it in a NON plastic container, fill(just over the perspex) with nail polish remover, and leave for about 2 hours, the paste that remains is a GREAT perspex glue.
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Old 10th May 2007, 6:34 PM   #2
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now that seams like a very good idea, just one thing, how the hell does someone figure something like that out?
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Old 10th May 2007, 6:36 PM   #3
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lol thats a great idea, just dont sniff it too much
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Old 10th May 2007, 6:46 PM   #4
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now that seams like a very good idea, just one thing, how the hell does someone figure something like that out?
i poured some acetone into a chinese food container once, melted through the bottom, but the edges of the hole was gooey... light bulb went on
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Old 10th May 2007, 6:46 PM   #5
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now that seams like a very good idea, just one thing, how the hell does someone figure something like that out?
Possibly the same way someone found out that the liquid that comes from a cows udder is consumable!! Well, maybe not the same way but hell, it's equally a puzzling question!

edit: or you pour acetone into a Chinese food container.
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Old 10th May 2007, 6:47 PM   #6
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collect as much of that as you can into a cup, fill with water, pespex should stay at the bottom, dirt and shit floats to the top.

Dirt,metal filings and gravel etc. don't float.
The best way to do this would be to catch the particles before they land on the floor with a sheet of plastic or similar.
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Old 10th May 2007, 6:55 PM   #7
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Or just put up with a tiny bit of dust being in your glue. It's GLUE!
Do Safeway still sell acetone? I could only find acetone-free nail polish remover when I looked, and the GF goes through it by the gallon. But none of it is acetone, so it doesn't melt perspex.

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Old 10th May 2007, 7:07 PM   #8
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Or just put up with a tiny bit of dust being in your glue. It's GLUE!
Do Safeway still sell acetone? I could only find acetone-free nail polish remover when I looked, and the GF goes through it by the gallon. But none of it is acetone, so it doesn't melt perspex.

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tiny bit of dust being in glue is bad, very bad.

this glue is PERSPEX, and it works REALLY well, pics coming tomorrow...
last time i tested it on something small(both pieces were about half the size of the hdd)
from looking at the front, you couldnt tell that it used to be 2 seperate pieces.
with dust in there, it wouldnt look right.
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Old 10th May 2007, 7:10 PM   #9
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Has anybody actually tried this, first hand?
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Old 10th May 2007, 7:13 PM   #10
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*puts up hand*

im mixing my 2nd batch now.
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Old 10th May 2007, 7:21 PM   #11
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Its no different to a floor sander using the sawdust (sanderdust???) and the polyurethane as a filler when sanding floors.

Ive used the same method with chlorform mixed with clean perspex "dust" Cant remember how well it worked but I had a good sleep
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Old 10th May 2007, 7:25 PM   #12
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Has anybody actually tried this, first hand?
I've done this as well, it works well IIRC I was shown this trick in plastics class in high school, but from memory we used chlorform
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Old 10th May 2007, 10:43 PM   #13
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Yeah, the thing is, it will work well if chloroform or methylene chloride is used, but i'm not sure how well it would work by comparison with acetone being used.
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Old 10th May 2007, 10:58 PM   #14
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I think that the advantage of chloroform is that it is a little more viscous than acetone and evaporates (flashes off) less quickly. The beauty of using dissolved perspex is that the glue becomes "gap filling" as well.

Ive built a couple of perspex cases, one other trick is to swipe a gas torch very quickly along the cut edge to polish / glaze up the edge. Takes a bit of practice and I would not recommend using the trick until one had practiced on some scrap though
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Old 10th May 2007, 11:24 PM   #15
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Quote:
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lol thats a great idea, just dont sniff it too much
Cool, so sniffing it just a 'lil bit is ok then.
How's it compare to petrol?
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