Eggbot clamping device for engraving (beer) glasses

These thing makes the "eggbot redrawn" ready to clamp beer glasses for engraving them.

I also changed the engraver mount of original “eggbot redrawn”, because I guess, there should be more possibility to swing. For the same reason, there is a washer on my mounting screw. That puts more power on the vibration.

For the glass mount I used rubber tube of a car windscreen washer with a diameter of 6.5 mm. I recommend to clean the glass with alcohol before clamping to prevent twisting.

Here you can see the eggbot in action:
https://www.youtube.com/watch?v=B2x0VnIHKFk

This was designed a view years ago. Unfortunately, I own no “eggbot redrawn” any more, because now I have a K40 laser.
 

And here is the result:
 

Added a lightwight version of the pen arm for drawing on eggs. I noted, that the pen arm used for engraving is too heavy for fast movements. With this pen arm you can draw on eggs with the maximum speed.