For example, most CNC machine tooling is cylindrical due to this fact the half geometries Direct CNC potential through the CNC machining course of are limited as the tooling creates curved nook sections. If the drive system is weaker than the machine's structural integrity, then the drive system simply pushes in opposition to the obstruction, and the drive motors "slip in place". The machine tool may not detect the collision or the slipping, so for example the tool should now be at 210mm on the X-axis, however is, in reality, at 32mm the place it hit the obstruction and saved slipping. All of the next tool motions shall be off by −178mm on the X-axis, and all future motions are now are|are actually} invalid, which may lead to further collisions with clamps, vises, or the machine itself. This is frequent in open-loop stepper methods however isn't potential in closed-loop methods unless mechanical slippage between the motor and drive mechanism has occurred. Instead, in a closed-loop system, the machine will continue to aim to move in opposition to the load till either the drive motor goes into an overload condition or a servo motor fails to get to the desired position.
For example, most CNC machine tooling is cylindrical due to this fact the half geometries Direct CNC potential through the CNC machining course of are limited as the tooling creates curved nook sections. If the drive system is weaker than the machine's structural integrity, then the drive system simply pushes in opposition to the obstruction, and the drive motors "slip in place". The machine tool may not detect the collision or the slipping, so for example the tool should now be at 210mm on the X-axis, however is, in reality, at 32mm the place it hit the obstruction and saved slipping. All of the next tool motions shall be off by −178mm on the X-axis, and all future motions are now are|are actually} invalid, which may lead to further collisions with clamps, vises, or the machine itself. This is frequent in open-loop stepper methods however isn't potential in closed-loop methods unless mechanical slippage between the motor and drive mechanism has occurred. Instead, in a closed-loop system, the machine will continue to aim to move in opposition to the load till either the drive motor goes into an overload condition or a servo motor fails to get to the desired position.
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