and today the laser is not turning on in some areas when engraving.
I changed the drivers from M3 grbl to grbl, engraved in 15000 mm/m, 20000 mm/m, 10000 mm/m and is always not uniform, checked belts tension, unpluged and plugged everything twice, i really don´t have any ideas to what could be happening.
I was expecting to see something in the design that might account for what you’re seeing but I don’t see anything particularly unusual.
I suspect this is mostly related to the settings and how your material is behaving. I don’t have any experience engraving to PP.
A couple of things I’d suggest trying:
validate that your line interval is ideal for the material. Start with the same speed and power settings as you’ve been using. I suspect you’ll have a lot of overlap
once you get an idea of better line interval run several material tests at varying power and speed settings. I suspect this will be somewhat difficult due to the nature of PP. If I had to guess I suspect you’ll be better off trying to have multiple low power passes otherwise you’ll end up getting uncontrolled melting.
the page doesnt let me post the video, I made a rectangle side to side and 10 mm of height, the laser just turn off at the end, it wont engrave on fill or line, just doesnt turn on in that area
The areas where it’s not burning is the overscan areas where it shouldn’t burn.
The controller is adjusting the laser power down to account for deceleration/acceleration. This can become exaggerated if your speed settings are higher than actual achieved speeds. I’d suggest dramatically decreasing speed to check behavior.
