Can anyone suggest what may be causing the tiny dots and lines at the edge of the image engrave.
Snapmaker, Ray, 20w
I just noticed them while zooming in on the pic.
Probably in the original image.
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They aren’t in the original.
Is image background completely white?
Play around with the sliders to boost contrast and gamma. Also change your dither logic - I bet you will find these are artifacts from the jpeg/bmp you imported. Just for fun, try tracing the image - it will help you see the garbarge.
Yes its white.
Are you using a diode or a CO2 laser? High Voltage controller failure can lead to extraneous marks (so I;ve read) - but usually not just on image engraving.
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I’ll give those a try James.
I did play around with it in ‘Paint’ but the dots are also in areas I didn’t do anything.
I’m just having a first go at working with blending text and images and multiple layers and various power & speed, so I’m actually quite interested in this effect rather than it being a problem.
Yes, the Snapmaker-Ray is 20w diode.
Hi James
Can I ask what is meant by ‘dither logic’.
I searched the term and found your previous conversations on image engraving and Im wondering if I should have used ‘Passthrough’ for that layer.
Thanks for the suggestions, I’ll try them out tomorrow.
Jarvis, newsprint, halftone, grayscale, threshold
All those are different ways the program attempts to break down an image into binary. The laser is off or is on. Shading must be done in analog.
Right click on the image, select adjust image. Left side, lower window you can set the logic.
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Hi DsKall
I took this macro of an engraving done today and there is no sign of dots.
I didnt have time to check out the other image, but as it had been through MS Paint and Photo editor the dots could have been caused in those…Or were hidden in the original as you suspected.
Most image backgrounds are not completely white. This will give you some dots and things as the laser tries to render the image.
Changing image modes, using brightness, contrast etc. can usually get you satisfactory results.
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I go through Gimp and I change all the color of the background of the image, the white is rarely pure on photos and other svg. Also possible to remove the font even transparent with free background remover (but loss of resolution in free mode!)
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