My Wainlux K6 Hong Kong built Kickstarter unit arrived right before the end of 2020.
Software is a mess. Windows application basically does nothing, but after perseverance I got the iOS app to sort of work from my iPhone.
Directions, videos and FaceBook page are similarly so underdeveloped as to be a step away from useless.
Until the software is stable and full capability, I cannot recommend this unit…but my guess is by Spring there will be a more robust release.
Here is a closeup of the first attempt in action. Audio is unrelated (sorry I hadn’t expected to post the video or to be honest that the thing actually worked for me) but that is just the way things work out sometimes:
Another shorter video showing the whole unit in action:
Here is my first attempt, which didn’t turn out the worst for an unadjusted unit and a neophyte operator.
Wainlux 6 K9ZW First Burn Results
I bought the unit hoping it would arrive in time to do some personalization for Christmas gifts, to learn about laser engraving, and to have fun during our semi-lockdown period. I’m already learning, so that part is all good.
The main website http://en.wainlux.com
More once Wainlux or a 3rd Party has the software sorted out.
73
Steve
K9ZW
With Varying Frequency - Amateur Radio Ponderings 
[…] up on my unsatisfying first attempts – see https://k9zw.wordpress.com/2021/01/03/non-radio-learning-burning-laser-engraving-first-steps/ – I’ve dug deeper into the Wainlux K6 Laser […]
You need to calibrate your focal point distance. Seek youtube James Dean Designs vids – specific on Laser setup/cal.
The iPhone camera does help what you are seeing.
Later burns after adjustment were much better. And if was more than calibration that needed to be adjusted.
The K3 is a surface-indexing unit for the most part, with the entire unit intended to set on the workpiece.