Glassboard Marker Holder

"Glassboard" Marker Holder that just clips on the side of the board and uses friction to hold in place.

Same design as my other Slim Whiteboard Marker Holder (https://www.thingiverse.com/thing:4910723) but for glassboard type of whiteboard it doesn't work. With glassboard the metal sheet is behind the glass so you would need extremely strong magnets. So I designed a clip-on version that doesn't need any magnets.

Designed and tested on a (glass) board that is 4.4mm thick but will probably work with any board from 4 to 5mm.

Designed for markers / pens of 16-18mm diameter