I hope i did this right. I apologise in advance if it’s wrong. I also included the shapes with their 2 assigned parameters that i’ve used.
When i switched to my 70mm, which is what the file i attached is using with its converted parameters, i would guess that it is only RELATIVELY in a similar position, as i removed my jig when i switched without the framing on. However, the coin is always on the left side (with 90 degrees rotation of workspace) regardless of the lens.
Ive tried this with and without cross hatch, just cross hatch, unidirectional, etc. All the combinations.
Yeah i think youre right with the mirrors.
Im starting to think… could it be something related with a component of the machine that instructs the laser power output in specific areas such as the center of the circle and on the edges of the shapes to be darker/deeper?
Another update that might reveal a clue. I did cross hatch and bi directional. But the line in the circle seems to only go in one direction DESPITE CROSS HATCH. perhaps this is a clue? The left black circle also look uneven.
This is the parameter im using. My machine is a 30W JPT-LP LiteMarker with 70mm lens
What is extremely strange is that for 2 different parameters now i have to change my line intervals from 0.02 and 0.025 to AT LEAST 0.08 to remove the dense lines.
In the engraved picture i attached in this reply, i had encountered this issue which was fixed with the 0.08 LI from 0.025.
It was theorised by someone helping me that it because of the huge and sudden jump in LI, it could indicate an underlying issue of an aged laser source or an aggressive use of my parameters.