The shutdown procedure ensures that the CNC machine is safely powered down, the workspace is cleaned, and the machine is left in a ready state for the next user. Following proper shutdown practices helps maintain machine longevity and ensures a safe environment.
Turn Off Spindle: Use the VFD to stop the spindle. Ensure it has completely stopped rotating before proceeding with any further actions.
Turn Off Coolant Pump: Turn off the pump and check that the flow has stopped.
Remove Cutting Tool: Before loosening, ensure that the tool will be able to safely drop out, and do so without damaging your workpiece, the bed or the tool itself. Loosen the collet nut using two wrenches, remove the tool, then completely remove the collet nut and attached collet. Separate the collet from the nut by pulling sideways, it will come out in one direction only.
Remove Workpiece: Release any clamps or fixtures carefully to avoid damaging your workpiece or the bed.
Turn Off Power: Shut off the VFD, the control panel and the computer.
Clean the Work Area and the Machine: Use a vacuum to completely clean all areas of the machine. Do not use compressed air as this creates a lot of dust, a larger mess and is generally unsafe.
The work area
The motion systems to keep the belts and motors free of dust and debris
The computer, keyboard and mouse (using a brush attachment)
The floor around the machine
Anywhere else where the CNC debris ended up
Report any issues, failures or broken parts to the #CNC channel on Slack. This alerts the CNC Committee as well as other users of the machine as to its current state, and any work which may be required.