简易切割圆孔的手动工具。（约30分钟打印完成）

A simple manual tool for cutting circular holes. (Printed in approximately 30 minutes)

因为要切割铝天花板，我设计了整个圆形结构，切割时刀路更稳定，安全性更好。

注意，这只是一个单一直径的简单小工具，是我在手边没有更好工具时，用15分钟快速建模，并30分钟打印后，我就用上它了

它帮我在铝天花板上很方便的切出了完美的灯具安装孔。所以我认为你也可以切割比薄铝板更软的其它材料。

Designed with a complete circular structure for cutting aluminum ceiling panels, ensuring stable cutting paths and improved safety.

Note, this is just a straightforward tool with a fixed diameter. When I didn't have a better tool on hand, I quickly designed it in 15 minutes and started using it after a 30-minute print.

It helped me easily cut perfect mounting holes for lights on aluminum ceiling panels. Therefore, I believe it can also cut other materials softer than thin aluminum.

这个模型直径为70mm，当然，你可以利用bambu studio少量缩放（不要超过+-20%）来调整到你需要的直径，如果需要，我再放一些不同直径的上来。

The model has a diameter of 70mm. Of course, you can slightly adjust it (+/-20%) using Bambu Studio to fit your desired diameter. If needed, I can provide models with different diameters.

它使用小型9mm美工刀片，调节到需要的切割深度，并用1或2粒 M5螺丝很好的固定刀片

It uses a small 9mm utility knife blade, adjustable to the required cutting depth, securely fixed with 1 or 2 M5 screws.

Find any screw (drywall screw) larger than 30mm and insert it into the center circular hole, securing it to a piece of wood to fix the center of the circle.

任意找一只30mm以上的螺丝钉（干壁钉）插入中心圆孔，钉在一片木板上来固定圆心

请在 FDM 机器上打印零件，支撑已经设计在模型当中，所以打印时无须开启支撑选项，打印完成后请剥离这个设计在底部的支撑，以更好的保护切割的材质表面

此外，使用它作为工具时要小心！使用风险自负！（建议用比较小的力量多次重复来完成切割）

希望这个工具能为你所用。

Please print the part on an FDM machine. Supports are already integrated into the model, so there's no need to enable support options. After printing, peel off the designed supports at the bottom to better protect the material's surface during cutting.

Additionally, be cautious when using it as a tool! Use at your own risk! (It's recommended to use gentle force and repeat cuts several times to complete the cut.)

Enjoy!