I have a shop-made 5 axis CNC based on some surplus stages that are very accurate and have high count linear encoders--roughly 250,000 counts per inch and 20,000 counts per degree--rotary. Is is possible to use Mach3 or EMC to control these stages in closed loop mode and still take advantage of their high accuracy? With their old controller the stages can be moved at 100 IPM. It seems as though EMC and Mach will only allow much lower feedrates. Any advice would be appreciated.