Total Newbie here when it comes to Lightburn and the Gweike. I have read all the things posted, watched more videos that I care to admit to and am currently trying to cut my first project. I have 3/4 inch walnut which calculates out to 19.5mm for the material thickness. I entered this into Lightburn and after making adjustments for my project for speed 400 and laser 35% along with my material settings above, I am able to burn the line portion of my project without any issues from what I can tell (other than my Z axis not moving up or down) and then when it comes to the fill portion of my project it begins running into my material?
Z control settings are as follows per previous posts (running Lightburn 2.0.04)
Enabled Z control
disabled Relative Z moves Only
disable OMTECH Polar
Enabled Optimized Z moves
@keith2022 and @BillieRuben thanks for the response. I reached out to Gweike and got a response from them as well.
For all who purchased a Gweike Cloud Pro II 50W machine and are confused like I was from all the conflicting information between the 55W version and the 50W version on the interwebs.
The material thickness on top of the honeycomb plate will only support >17mm. If you desire to use thicker materials then you need to get a little creative like I did (see below). Also, note that when you are making calculations in LightBurn…you still need to subtract your material thickness from 17mm and enter it in the cuts/layers tab- material thickness.
That means (as an example) If your material is 3 millimeters thick, you need to input 17-3 = 14mm, and if your material is four millimeters, you need input 17-4 = 13mm. This is still accurate as of today’s date 27 Oct 2025 and Lightburn 2.0.04.
If you desire to use thicker material…you need to know that 51mm is the distance from the material surface to the aluminum base plate inside the machine which, must be greater than 18mm. Materials with a distance less than 31mm must be raised to exceed 30mm.
So based off the above information, removing the honeycomb base plate and using some scrap wood that is 15mm thick sitting on the aluminum base plate. Then putting the actual material you want to cut or engrave on the scrap wood which for this example is 20mm thick. It gives you a measurement of 35mm total, which meats the minimum requirement noted above.
You can then take the 17mm which would represent the honeycomb baseplate, which has been removed, and enter 17mm for your material thickness since it is now exactly the same height as the honeycomb before you removed it.
Essentially your are going to enter the material thickness in the cuts/ Layers tab in LightBurn as 0.0 or 0.1 whichever it will allow you to enter.
Kind of wild how you need to make these adjustments/ calculations but it worked like a charm and was verified by Gweike tech support as well. I hope this helps someone else out so you are not waiting days to get going with your projects!
You shouldn’t need to do the subtract from 17 thing on newer versions of LightBurn. Just enter 0 if you want the height of the honeycomb. 3 if you had 3mm thick stuff sitting on top of the honeycomb, etc.
Greetings…Indeed I have. I followed your step by step to set up my machine initially and was very thankful for the guidance. However, when it came to applying what you posted regarding the latest version of LightBurn, it did not translate across for my project. I would be interested in seeing if there is something I missed or if there is an issue with the newest version of LightBurn?
When I did the 17 minus material thickness calculation the file burned the project without issue. Additionally, when I contacted Gweike tech support, they said the calculation still needed to be done…even with the latest version of Lightburn. Is there something I am missing or that they are not tracking?
You definitely shouldn’t need to do the 17 minus thing on the latest version of LightBurn. I don’t do it on my Gweike Pro. Are you running 2.0.04? Have you tried just entering the thickness?