About this 3D model
The holder that is included with the Sunlu SL-300 is supposed to be mounted with a suction cup that is attatched to it. My work area is not a glass smooth surface, and when i tried to mount it to glass, it was still wobbly as a brit out of a bar. So i simply made this replacement foot. Remove the suction cup, preferably by force. Add the glue of your choice to the printed replacement and mount it together. The foot it designed with a taper to match the inside of the origial Sunlu holder.