Gantry Homing Failed

When the cutting head returns to the back left corner to home you may hear a loud noise from the stepper motor and see the gantry vibrating and unsuccessfully trying to drive itself into the corner. This indicates a homing problem.

Tools Needed

  • Water from either a hose or a bucket

Procedure

Check: Are the gantry bellows covered in Abrasive?

 
 
  • Root Cause: When this happens the bellows can’t compress enough for the gantry to return all the way to home.

  • Corrective Action: Clean abrasive off bellows with hose or bucket of water. After you’ve cleaned off the bellows you may find the water level is too high. Use the Maintenance > Quick Drain to lower the water level to the cutting bed.

Check: Are you using the latest firmware and config file?

  • Root Cause: In older config files the the settings for the X axis are too conservative and can result in homing failures when everything is normal with the WAZER.

  • Corrective Action: Follow the Firmware and Config update article to update your WAZER.

Check: Do the Limit Switches work?

  • Root Cause: The extents of WAZER cutting area are managed by mechanical limit switches. With the machine turned off, move the cutting head to each of the extents and listen for the soft click of each limit switch.

  • Corrective Actions: If you don’t hear anything follow the instructions in Checking the X-Axis Gantry. If this doesn't work for you or have any questions Contact WAZER Support for more information.

Check: Do the limit flag align with the limit switches?

  • Root cause: Limit flag is the part that touches limit switches. If it is not aligned to the limit switches, the gantry system will carry on traveling in that certain direction, result in the jumping or jittering.

  • Corrective Action: Please refer to this page to conduct a limit flag check