Thanks a lot, but my pieces of work must be made by students between 11 and 14 years old, so I think the "tourbillon mechanism" is too difficult for them.
You can go and see on my channel on youtube my tutorials of each of them:
https://www.youtube.com/channel/UCLLkROyw43NaTWvagqm5t-g/videos
Keep writing comments, I appreciate them.
Enjoy
