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Quince
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Unfortunately, I use a film camera. My only digital camera is the crappy one on my phone, so the attached image is the best I can do.
\"One of the surest signs of Conrad\'s genius is that women dislike his books.\" --George Orwell
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Quince
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Anyone try making their own extraction thimbles? The only ones I found are cellulose and quite expensive.
I tried to fold coffee filters in the right shape, but it doesn't work very good.
I was thinking just using mineral wool as used in insulation, and first washing it in the solvent I plan to use in extraction. Any comments, ideas?
[Edited on 23-9-2005 by Quince]
\"One of the surest signs of Conrad\'s genius is that women dislike his books.\" --George Orwell
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Rosco Bodine
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An idea which I never tried but should work is to use the same principle as the
" sand filter " used on swimming pools
and spas for water filtration . You could make a little sandbag from fiberglass cloth or other cloth , and twist tie it closed , just large enough to
be a snug fit against the walls of the extractor . This would allow dissolved material to pass through . Even a loose layer of mixed grit sizes of
sand and gravel might work okay as a filter . You should have very little contamination from any solubles using quartz sands , especially if the
sands were prewashed with muriatic acid and rinsed with water followed by a rinse with whatever solvent will be used for the extraction .
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12AX7
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And/or diatomaceous earth. 
Tim
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Quince
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Here's a slighlty better picture showing extraction of ASA with acetone. I just packed a bit of cleaned fiberglass wool at the bottom and it
seems to work fine. The only problem is I got it a bit too big, as the minimum amount of solvent is about a cup.
Yep, the stands are DIY...that's copper pipe you see there 
I did something stupid -- greased up the joints with glycerine, so now most of it is in the extract...
The hardest part will be getting the ASA out of the flask.
[Edited on 25-9-2005 by Quince]
\"One of the surest signs of Conrad\'s genius is that women dislike his books.\" --George Orwell
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Beatnik
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Quince. Its beutifull! and here i was working with a crude pvc concept 
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Quince
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Took about one hour to do the extraction, with about 3:2 by volume aspirin and acetone. Worked better once I thought to also insulate the lower half
of the extractor body. LOL, I initially had set the valves wrong...
\"One of the surest signs of Conrad\'s genius is that women dislike his books.\" --George Orwell
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Quince
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OK, broke the thimble already...knocked over a cognac bottle and it fell on the thimble...
\"One of the surest signs of Conrad\'s genius is that women dislike his books.\" --George Orwell
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