Nút STOP! khẩn cấp (cho cửa) – Emergency (door) STOP!

Everyone knows those funny red buttons that.. for some reason, no one ever presses. 

But now, you have the chance to put them where they would occasionally be used. 
Under certain circumstances, at least for the "unknowing", this can also create a bad conscience if they open the door too quickly. ;)

Can be fully printed in PLA(+) or PETG, no need of any Support or TPU material.

Grease the inside of the button a little to avoid weird plastic rubbing sounds.

Two-stage deceleration:

The *.gif based reliability test is in full swing:

Assemble in order of the first picture, have fun!