[Lab] protein jar tumblers

[Michael]

You should be able to determine the plastic type from the recycling code 
on the bottom....
http://en.wikipedia.org/wiki/Resin_identification_code

Once you know the plastic, you can confidently select a solvent for 
attaching fins...
Just make sure your fins are of the same material or compatible to the 
solvent...

PVC and ABS solvents are widely available (Canadian Tire)  for use with 
pipe....

Michael

http://krazatchu.ca/
http://nomidesign.net/

On 7/3/2011 4:47 PM, Darcy Whyte wrote:
>
> Um, because water is involved, I'm a bit concerned about screwing 
> through it.
>
> Also, by doing something that interferes with the outside roundness of 
> the jar, it might not roll on the tumbler.
>
> I'm not dismissing it. It sounds better the more I think of it but it 
> still requires the right solvent to seal it up...
>
>
> On Sun, Jul 3, 2011 at 4:40 PM, mike Jans <mjans at live.com 
> <mailto:mjans at live.com>> wrote:
>
>     Do you think the jar is tough enough to screw through? If so, you
>     could press the agitators against the inside of the drum and screw
>     into them from the outside.
>
>     ------------------------------------------------------------------------
>     From: darcy at siteware.com <mailto:darcy at siteware.com>
>     Date: Sun, 3 Jul 2011 13:24:09 -0400
>     To: lab at artengine.ca <mailto:lab at artengine.ca>
>     Subject: [Lab] protein jar tumblers
>
>
>     I finally found some empty plastic protein jars to use for my rock
>     tumbling project. They are large (like a gallon) and they have a
>     wide mouth. The plastic is very tough so I think they will be okay
>     as rock tumblers. They may be made of vinyl I'm not sure.
>
>     Anyways, any ideas of how to install rubs inside them so the rocks
>     don't just slide inside?
>
>     I'm just a little concerned that it will be hard to glue unless I
>     can find the right solvent.
>
>     One thing I thought of is to add a disk underneath the lid. So
>     when you go to add the lid (like a peanut jar lid), you first put
>     down a disk as if it were a seal. The lid would go over top of
>     this disk and hold it in place.
>
>     Then the disk could have some agitators attached to it so that as
>     the assembly turns the agitators rotate inside the container and
>     make sure the stones don't slide.
>
>     Any thoughts?
>
>     http://mambohead.com/2011/06/rock-tumbler-first-run/
>
>
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