Open Source Magnet Holder Stand

I built a magnet stand today. It’s comparable to a $100 Thermo Fisher product but only costs about $2 in materials. Maybe $10 if you have a service like ponoko cut the acrylic. The holes in the top hold a 1.5 ml centrifuge tube. The  center column has a receptacle for a 12 mm disc magnet. The design source file available in a github repository. I’m still learning github, but hopefully that makes it easily accessible.

The laser cut out these five pieces:

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Then I assembled them into the stand and added a bit of superglue to the joints to hold it all together. It turns out that cyanoacrylate glue works really well on this material.

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While assembling my fist prototype, the teeth were a little too big for the holes. One piece split apart and jabbed into my finger. It turns out that cyanoacrylate glues will also stop a cut from bleeding .

The use of cyanoacrylates to close wounds is nothing new. Cyanoacrylates are used in surgery and were used on the battlefield in the Vietnam war. I went searching for other blogs talking about this use of superglue and found this old Lifehacker article from 2012. So, yeah: you can close a wound with a little superglue. It’s not the best way, but it’s  it’s good to know in a pinch.

And now I need to digress a little.The top comment on this article is a pedant literally starting his comment with “uuummm, NO.” I read it in a nasal voice like droopy dog. It’s so stereotypical it’s funny.

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Whatever, Droopy McProperface. Rub some dirt glue in it. There’s SCIENCE to be done.