外购件：
1.任意直径小于等于73mm，高度小于等于85mm不锈钢杯（装酒精）；
2.300长60直径壁厚3石英玻璃管（石英管长度可低于300mm，具体看个人喜好，推荐在100mm到300mm之间，其他尺寸勿动）（参考价格300mm长100元）；
3.炉膛专用，耐高温水泥（防火水泥…）最好是有搭配好骨料的（参考价格在5Kg45元上下）；
4.工业酒精99%；
5.火柴、喷枪或者露营用引火打火机；
6.搅拌水泥的灰铲，装水泥的塑料盆，劳保手套，乳胶手套，3M防毒面具（KN95口罩），振动器（筋膜枪什么的）用于内部消泡（或者可以用硬物敲打模具外壁等；

自备件：
3D打印模具一套

操作流程：
1.打印模具；
2.预装模具；
3.按照使用说明，配置、搅拌水泥；
4.将水泥倒入模具中；
5.振动等手段消泡，补充水泥；
6.静置（具体时间按照水泥使用说明来，一般是大于72小时）；
7.拆除模具，不限于使用任何可以破坏模具的手段，例如热风枪加热，电烙铁加热，钳子，铲刀，一字螺丝刀等工具；
8.将酒精倒入不锈钢杯，放置杯子于真水泥底座中央；
9.将水泥底座放置于真水泥底座上；
10.引燃酒精；
11.罩上石英玻璃罩；
12.享受温暖，看蓝色火龙卷吧。

（英文为机翻，如有歧义以汉字为准）

Purchased Parts:

1. A stainless steel cup with any diameter ≤ 73mm and height ≤ 85mm (for holding alcohol).
2. Quartz glass tube with a length of 300mm, diameter of 60mm, and wall thickness of 3mm (the length of the quartz tube can be less than 300mm, depending on personal preference, preferably between 100mm and 300mm; do not alter other dimensions) (reference price: 100 yuan for a 300mm length).
3. High-temperature resistant cement specifically for furnaces (fire-resistant cement...) preferably mixed with aggregate (reference price around 45 yuan for 5Kg).
4. Industrial alcohol 99%.
5. Matches, a torch, or a camping fire starter.
6. A shovel for mixing cement, a plastic basin for holding cement, safety gloves (both labor protection and latex gloves), a 3M respirator (or KN95 mask), and a vibrator (such as a massage gun) for removing bubbles internally (alternatively, you can use a hard object to tap on the outer wall of the mold).

Self-Prepared Items:

A set of 3D-printed molds.

Operation Process:

1. Print the molds.
2. Pre-assemble the molds.
3. Prepare and mix the cement according to the instructions.
4. Pour the cement into the molds.
5. Remove bubbles using vibration or other methods and replenish cement as needed.
6. Allow the cement to set (specific time depends on the cement instructions, generally more than 72 hours).
7. Remove the molds using any means necessary, such as a heat gun, soldering iron, pliers, scraper, flathead screwdriver, etc.
8. Pour alcohol into the stainless steel cup and place it in the center of the real cement base.
9. Place the cement base on top of the real cement base (assuming there is a base for supporting the cement structure).
10. Ignite the alcohol.
11. Cover with the quartz glass tube.
12. Enjoy the warmth and watch the blue fire tornado.

(The English translation is machine-generated, and in case of any ambiguity, the Chinese version shall prevail.)