I made a palm-sized mechanical work 9

Please use subtitles :)
This time too, I tried making a small mechanical work using a spring with a reel.
The production period was 12 days.
The video of the design process is below (it's long without editing, so it's for people who have a lot of free time)
• 「手のひらサイズのからくりを作ってみた 9」...
VOICEVOX:春日部つむぎ