That’s the one I am trying to create myself, see this post: DIY Emergency Stop Button - #46 by brvdboss
(shamelessly pasting the vid again: First prototype test of 3d printed 3d touch probe - YouTube )
The design still needs some tweaking but seems to work ok and accuracy seems pretty decent (at least in the neighborhood of 0.1-0.2mm which I think is ok for 3d printed version)