I have been working on dialing in settings for engraving these colored aluminum cards. I have been tweaking DPI and seem to have found a decent speed/power setup. On smaller text, I am noticing that it is missing spots in the middle of the letters. I have tried slowing it way down, raising the DPI even more, and raising the temp. All of those things were not effective. When I slightly increased the size of the text, the issue went away. Any ideas on how I can fix this? I will also provide a picture of the tests as well as my settings. Let me know if any other info is needed. Thanks guys!
Following along. I’m no expert but appears to be a loose belt, pully, or gear. For tiny lettering or to trouble shoot you could change to uni-directional scanning but at the cost of time, and a band-aid not a proper fix.
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Any chance you are using Offset Fill an your fill mode?
my thoughts, mostly X belt loose
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Thanks for the idea, I will tighten the belt and do another test.
No offset fill, just regular fill.
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I think I have it fixed. It got worse before it got better 
When I started working on it, I think I may have overtightened the belt. Tweaked it, adjusted eccentric nuts and got this output. Bottom of the T seems to be bothering me a bit, but looks much better overall.
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Top output is running 700mm/m bottom is 2500mm/m
Try uni directional as a comparison
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