Re: [DIYbio] diy magnetic plate for DNA purification?

sorry, my image didn't go through. I got the idea from this:




On Tue, Dec 23, 2014 at 12:18 PM, Jeswin <phillyj101@gmail.com> wrote:
On Tue, Dec 23, 2014 at 11:40 AM, John Griessen <john@industromatic.com> wrote:
> Your DIY idea of shoving ring magnets over pipette tip rack tubes sounds
> like maybe something to write up.  Do they have the same spacing as well
> plates?
> They would if they are for the multi well pipettes...of course...answered my
> question.
>
Yep, the tip racks are evenly placed for use in the multi-channel
pipettes. I believe there are accepted engineering specs for 96-well
plates and differences are mainly in the skirts around the
wells/plate.

>
> See this sketch:
> http://www.ecosensory.com/diybio/magnetic-plate-design-1.png
>
Does the orientation matter? I was looking at the disc magnets (either
1/8 or 1/4 diameter flat discs). I got an idea from this


The arrangement would be like this:

+--+--+--+--
+O+O+O+--
+--+--+--+--
+O+O+O+--
+--+--+--+
+--

That comes out to 24 magnets, none on the outer edge and each magnet
serving 4 tubes.

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