Test tube resistor storage rack
thingiverse
Material required includes 13 x 23mm nylon spacers, 2 x 48mm nylon spacers, and sufficient quantities of nylon screws and nuts. Additionally, the following test tubes are necessary: 30 x 10ml graduated plastic cryovials with caps. These can be obtained from the website https://www.banggood.com/10pcs-Graduated-Plastic-Cryovial-Cryogenic-Vial-Test-Tube-Self-Standing-With-Cap-1_5510mL-p-1009075.html
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