Eppendorf Necklace for DNA

thingiverse

Now you can wear your DNA (or any other microcentrifuge sample) too! For our first DIY Bio meet we did the classic DNA extraction lab where you extract your DNA from cheek cells and store it in Eppendorf tubes to take home. A popular twist on this experiment is to run string through the tube creating a necklace. Of course, just running yarn through the Eppendorf cap hinge is pretty flimsy so I created this as an alternative! You can snap your sample into the necklace and wear it proudly with ease. The string slot was designed to take dog tag chain or lanyard clips so it should also take any other jewelry chain or cord just fine. This is designed for 1.5 mL Eppendorf tubes if anyone is interested in other diameters let me know and I'll revise the code so it's fully parametric! To snap the tube in point either the hinge or the opener tip so that it's perpendicular to the flat back of the necklace and push gently.