
拆開看看 Cutaway
Toilets, sink traps, pin locks, zippers, nail clippers. Things that work on physics alone, no plug.
Watch on YouTubeThree YouTube Shorts channels · cutaway posters · mechanism animations
A toilet usually has no motor, yet one push empties the bowl. Water in a pressure cooker only boils at about 120 °C. Each short takes apart one machine as a moving cutaway, so you see how it works in about half a minute.
One way of drawing, three subjects.

Toilets, sink traps, pin locks, zippers, nail clippers. Things that work on physics alone, no plug.
Watch on YouTube
The cup of water in a rice cooker, the 120 °C inside a pressure cooker, water drops skating on a very hot pan.
Watch on YouTube
Matchlock, flintlock, percussion cap: how ignition changed over the centuries. Mechanism and history animation only, no operating or making instructions.
Watch on YouTubeThe same cutaway from each short, without the readouts and captions: just the drawing and a one-line title. 3000 × 5333 PNG, digital download, NT$150 (about US$5). Prints to A3 (it is 9:16, so an A3 frame leaves margins at the sides), or use it as a phone wallpaper.
Usually no motor. Just one bent pipe.
One bend of water keeps the sewer smell out.
Only the right key lines up all five pins.
A Y-shaped channel hides inside the slider.
One strike makes the spark and opens the pan.
Water inside only boils at about 120 °C.
Checkout is on Portaly (the page is in Chinese). The download link shows right after payment and is emailed to you. Illustrative cutaways, simplified for clarity. Personal use only, no resale or commercial use.
Everyday machines for middle-school physics classes: cutaways, short animations for the classroom projector, and a one-page handout. Leave your email and we will write once, the day it is out.
The same cutaway method as the channels: open up the mechanism, show one movement at a time, readable with the sound off. Fixed format, and the total price is set before you order, so you know what you get and it does not go up later.
Order by email Or write to contact@ultralab.tw with the machine name and how it moves.