Many Chinese machines come with software that's pirated, defective or totally non-functional. If NCStudio is giving you trouble, you can either purchase the same thing new from the company that makes it and hope for better results, or switch to some other CNC control software like Mach3 or LinuxCNC. Here's some discussion about how to convert a NCstudio machine to Mach3: https://www.machsupport.com/forum/in...?topic=19969.0