Double Lines & Ghosting When Vectoring Lines

1 min read·Updated Jul 2026
Quick
answer

If you're getting double lines or ghosting when vector engraving, it's caused by the laser beam reflecting off the nozzle opening — fix it by correcting beam verticality.

Applies toAll machinesTopicTroubleshooting

If you are getting double lines and/or ghosting when vector engraving, its caused by the laser beam reflecting/refracting off of the nozzle opening.

Here is an example of this phenomenon:

Example of double lines and ghosting when vector engraving

Here is what's happening inside the head, showing a properly aligned beam and one with beam verticality issues.

Diagram showing properly aligned beam vs beam with verticality issues inside the laser head

And here is a link to how to correct the beam verticality:

How to correct beam verticality: Step 2 — Verticality Of The Beam

Still stuck?

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