GE-300 series motion controllers developed by Googol Technology are economical type 3-axis DSP-based motion controllers, which are designed for such motion control equipments that adopt continuous trajectory motion mode. The velocity invariableness and transition smoothness between any two-trajectory segments during the continuous trajectory motion are their most remarkable advantages, and therefore the smoothness of the machining surface and machining precision can be greatly improved. The series contains GE-300-SV and GE-300-SG, being widely used in highly complicated profile motion control equipments, such as engraving machines, laser cutting machine, laser welding machine, rapid prototyping machine, ultrasonic welding machine, water jet cutter, PCB milling machine, and wafer cutting machine, etc.