Dot Test 3.lbrn (398.6 KB)
I’m reluctant to post the file but going to go ahead anyway. It needs some modification but I haven’t figured out exactly what yet. So a few things to note about this file. It is a power/focus grid test. The rows should be power and the columns are focus.
I run the standard LB focus test first to get the focus to where I think it’s close then run this. The columns are labeled +5 through -5 with 0 in the middle. With the focus set to what I think is correct, the columns adjust the focus by .1mm. So if the nominal z height focus is 5 mm I set the bed to that. This will run columns from 5.5 to 4.5mm z height using the layer z offset. I use relative z moves only so there is no material thickness set. One thing that I still think is a bug in LB is that the first column has a z offset of -.5mm (out) and the last column is +.5mm(in). But it seems to do exactly the opposite. The positive value moves out/away from the material but the negative value moves in/toward the material. For me Z 0 is with the bed at it’s upper most position closest to the lens and as the value increases it moves down/away from the lens.
The cut optimizations need to be changed but I just haven’t figure out exactly how yet. It runs each grid from the bottom up then moves down to the next row and burns from the bottom up. Think each image just needs the start origin changed. It also starts with the first column, burns down 9 rows, goes back to the top of the second column, burns down 9 rows, then finishes the last row in the first column, and so on. Not sure why.
I’m also not sure I have the whole power scaling completely figured out yet. Because this is an engraving test I’m wanting the power on each row to be from 11% to 20%. To do this I have each layer set with a max power of 20% and min power of 10%. I then have the layer shape properties set to 10%, 20%, 30%, etc. I’m not sure I’ve done this right to get the result I want. If anyone has some insight here I’d appreciate it.
So, here’s the file with whatever faults it may have.