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Auto Focus Plunger Replacement on the Mini/Helix

How do I replace the Auto Focus Plunger on my Mini or Helix?

Date updated: 11/06/2023
Machine Series: Mini, Helix, Fibermark
Categories: System Maintenance
Key Words: Mini | Helix | Focus | Install
Autofocus plunger replacement for the Mini and Helix engravers.

Machine Type: Epilog Mini 18/24, Helix

Tools Needed:

  • Small screw driver
  • 5/64 Allen wrench


This procedure details steps to replacing the auto focus plunger on the Legend Mini and Helix machines. Before starting on this procedure, lower the engraving table a few inches and then turn off the machine. Please consult the exploded drawing of the X-carriage assembly for part names.


  • Remove the gray X-beam cover.

  • Remove the 5/64 hex screw from the Auto Focus plunger shaft.

  • Replace the auto focus plunger with a new plunger.
  • Put the Auto focus plunger into the spring and gently push up.
  • Tighten the 5/64 hex screw on the Auto focus plunger shaft.

  • Replace the gray X-beam cover.

    For a larger image of the exploded drawing of the X-Axis Carriage, click here.

If further assistance is required, please visit to contact Epilog Laser Technical Support.


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