To smoothly cut glass, you need a skill and a good tool, and a special home-made device will help simplify the task. If you work with sharp glass, then you should think about using a special table.
For crafts, you will need an unnecessary rule and a flat surface, which can be an old door from furniture. The aluminum case of the rule needs to be cut and the resulting part installed on the edge of the countertop so that glass passes under it.
A slider is made from the rest of the rule, which is designed to move along the table strictly along the aluminum body. A knife for glass is installed on the edge of the slider. Cutting is now carried out in literally one motion.