The spanking machine presentation for self-spanking

It's possible to combine self-spanking and spanking, and even self-spanking and CBT. 

For CBT, you simply need to orient the machine in the direction that suits you best. I advise you to set it to the minimum setting to start with.

The video of this machine may give you some ideas.

https://fessestivites.com/media/200465

It's on sale on ABCplaisir here:
https://abcplaisir.com/fr/accueil/1757-m...essee.html

It's quite an interesting device. But first I want to try to build a machine by myself, inspired by this video:

Source: https://www.youtube.com/shorts/0oI1Wt192NQ
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I've aeady bought a stepper motor, and written a simple code for Arduino to control it. Unfortunately, I don't leave alone and I can't finish it for now😕