[DIYbio] Re: DIY tube holder for vortex mixers

Despite my silence on the line, I am thinking of ways to remount a
dremelfuge as/on a vortex.

It's easy to shove an offset bearing into a dremelfuge; redesigning it
for that wouldn't be a great problem in OpenSCAD. The problem arises
when you spin it by whatever shaft goes through the bearing; you still
need to hold the dremelfuge main body from rotating with the shaft, and
the way you would do so would vary from drill/driver to drill/driver.

If you have a pre-existing vortex model (where there's just a hub that
oscillates without rotating) of course, it should be possible to
engineer the Dremelfuge simply to fit on top without too much trouble.
That's just a matter of replacing the dremel-adapted hub into a
from-beneath mount matching the vortex's fitting.

So, in brief; vortex, easy (drill + offset skate bearing + mount, I use
a DIY'd one all the time). Unattended vortex, varies by design, haven't
bothered making one yet. Dremelfuge-that-fits-to-existing-vortex, Easy,
but I'd have to see pictures and precise measurements for the vortex mount.

On 20/01/12 10:26, David McWilliam wrote:
> Great post. I've been looking for something like this for macerating plant
> material in bead beater tubes prior to DNA extraction. I've just bought a
> dremelfuge which arrived today and am thinking of ways to attach it to a
> vortexer. The horizontal tube position would help maximise the bead
> vortexing although it may need something to stop the tube caps from
> popping. Maybe a vortexer modification of the dremelfuge - Cathal?
> DMcW
>
>
> On 20 January 2012 15:59, CodonAUG <elsbernd@gmail.com> wrote:
>
>> I wrote up a blog post about how to make a tube holder for vortex
>> mixers. I needed something to hold microcentrifuge tubes for me
>> because I didn't want to stand there for 10 minutes with my arms
>> getting uncomfortably shaken.
>> Check it out if you are interested.
>>
>> http://cheapassscience.wordpress.com/2012/01/20/diy-tube-holder-for-vortex-mixers/
>>
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