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PCB test tube rack

Overview

The test tube rack from Aubao costs more than ten yuan. Since PCB can be used for free, why not use PCB as a test tube rack?

3mm and 4mm screw holes are reserved for your choice.

Production Method:

1. Get PCB proofing from a collaborative manufacturing colleague QQ screenshot 20210628220713.png . 1. Obtain two PCBs, and lift off the reserved base on one of them. QQ picture 20210628220558.jpg 1. Smooth the edges. QQ picture 20210628220603.jpg 1. Take 4 long screws and 4 nuts and install them as shown in the figure QQ picture 20210628220606.jpg 1. .Take another 4 nuts and install as shown in Figure QQ picture 20210628220608.jpg 1. Take another 4 nuts and complete the installation as shown in Figure QQ picture 20210628220601.jpg 1. Then you can start using it QQ picture 20210628222239.jpg (PS: I don’t know the composition of the green tube from beginning to end. It may be tetrachlorine cuprate?)

use

Place test tubes of various diameters, plastic tip droppers (clean), test tube brushes, tweezers, medicine spoons, funnels, etc.

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-05-07 21:20:57

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