hello,
i ufse the chinise cutter and engrave machine (RABBIT), in the manuel their is no informations about the speed and the power values for each material, like plexiglass that i use frequently, is any body have an information about this, or should i test one by one to get the optimal values,
thanks for advance

There is a lot of info about it in the forum,
An easy way is to cut one piece of the material (12mm or thicker) PUT 90% of power, and make some cuts from the border at different speeds, starting from 60 or 70mm/sec. then you can see the diferent deep of cut in each speed, that way you can get an idea in any material.