A funny thing happened on the way to 1355 today.
So check this out. For my DPI test, I used the following settings:
Speed = 675
Power = Full Power
DPI = X (where X = 125, 225, 340, 675, 1355)
Focus = 0.063"
What you see here is the completed burn. As expected, the images get better as the resolution gets higher. Yes, burn time increases proportionately too (12 minutes just for the 1355dpi).
It may not be obvious without zooming into the photo, but the 675dpi image is the sharpest – the circles are double, and the lines above the diamonds are crisp. For some reason, at 1355dpi we lose some of that detail.
But when it came time to wash the Cermark off, I was surprised to find that all of the black stuff washed right off with it! The Cermark had scorched black, but hadn’t fused to the metal.
So I believe that it may be necessary to slow down the laser as I increase the resolution (DPI) of the image that I am engraving.
Dang it, I wanted Easy!