Experimenting with engraving aluminium
Use either the included DXF/XCS or adjust the Affinity Designer file to create a custom spiral.
Clean any fingerprints or dirt from the surface to ensure a clear engraving.
Download and 3D print the jig named 40mm circle here: https://than.gs/m/972004 or align perfectly to the centre using the framing button.
The galvanometer laser system in the xTool F1 ensured all detail was preserved in this model. I am unsure how sharp the engraving would be on other lasers at this size.
25mm/s ensured a visible and clear pattern. Previous faster tests were very faint.