This model is a stand for storing 3-milliliter disposable pipettes. When handling multiple small-capacity test tubes at the same time, I often use this stand to stabilize the pipettes, ensure that the tips of the pipettes are not contaminated, avoid damage caused by accidental falls, and make it easy to retrieve and put them back in their place.

The bracket is assembled using M3 screws, with a screw length of 8 to 12 mm. You can either directly print the main body of the bracket and then fix it to a metal base plate with M3 threaded holes to use as a base, as shown in the figure; or choose to print the two parts of the bracket base. The base is designed in a split style, making it easy for you to fill it with sand or other heavy materials as needed to effectively increase the overall weight and enhance stability.