I didn’t have any luck finding a similar post about this, but I also don’t check these forums too often anymore.
Basically I am engraving some stamps for use in ceramics, and what I have noticed with every stamp is that as soon as the “geometry” (white areas) stop and the black background begins again, the engraving leaves this ‘bump’ behind. I am not sure if it’s a power issue, or a focus issue. I would assume the focus would stay the same throughout the engraving. Here are some examples of what I am taking about.
As you can see, it only happens at the top of the engraving, and not at the bottom of the “geometry”. Here is the photo that I am using to engrave these.
As you can see it is a very high contrast etching, but it only creates that ‘bump’ at the top right when the white area is complete.
Here are the settings that I am using.
Material: Proofgrade Thick Clear Acrylic
Engraving settings: Manual Engrave
Map Grey’s to Power
Speed: 250 (I have also tried 300 and 500 with the same results)
Power: Min/0 Max/100
Passes: 1 (it also happened when I tried a faster speed with 2 passes)
Focus: Default focal length for this proofgrade material
Cut Settings: Default cut settings for this proofgrade material
These were all cut today so I should have the latest software/ firmware settings.
I haven’t tried these settings with another material yet, but if you have any thoughts, let me know.