In classic “Exact Stop” mode CNC control Toolpath planner add Acceleration/Deceleration for each g-code command block.
For Constant Velocity (CV) mode Toolpath planner tries to make motion without stops. Figures below demonstrate Speed profile and Toolpath for Exact Stop and CV Mode.
In CV Mode Control software Toolpath plabber reduce cutting speed on corners to keep Toolpath tolerance in range given in “CV tolerance” in “Motion” configuration dialog
S-curve Speed profile is implemented in myCNC for CV-mode. It makes smooth motion for all axes and significantly reduce machine vibration, step loss and cutting time.