@srgreg2 That sounds like the laser test board, you don't need it. It's provided for diagnostics only and is pretty much useless.

@KyleMC Are you getting the Grbl Ready message? If not you have the wrong COM port or baud rate selected.

Note: Make sure you don't have EleksCAM running as it will lock the port, I also believe it doesn't release the port when you close it (bad program) so after a reboot just test with T2Laser.

I would agree you need to increase the feed rate, I typically don't reduce power until I hit the upper limit of feed rate.

I see the clouds so it is doing grey scale but I would expect the building to be darker, are you using my Grbl 1.1e DEFAULT firmware?

@Bill-Thebert T2Laser does not create inlay (offset machining), it is for engraving or carving only. It is easy to generate a DXF with these profiles, and you could also add the hatch fill to remove the material. I believe Inkscape would let you do this although I don't use it much so perhaps someone else can confirm.

You appear to be missing the most important step, click the CNC Mode to enabled it (check mark next to the menu item), it will request the maximum depth. All units are mm as that is the Grbl default.

@Pier-Andrea-Tornatore You may have damaged the gears on the servo and perhaps the stepper drivers. I would suggest ruling out the software, if it does the same thing using T2Laser trial (click the EleksDraw option in the Configure EleksMana menu before you test anything as this will ensure the servo can't over rotate and be damaged).

@KyleMC I wrote T2Laser for my own use, it's very stable and functional (it just works) but no I didn't bother with fancy graphics or animations as I use it in a production environment to run multiple machines (diode lasers, CO2 laser and CNC).

It looks simple but it has many advanced features not found on other software such as rotary support, wood grain compensation and DXF optimization.

Most importantly it is fully supported and constantly being refined.

@massimo10005 I am not really sure what you are asking, have you installed the plug-in and can convert some PDF files but have one that doesn't work or you can't install the plug-in?

The PDF must contain vector paths to be converted, if you e-mail me the file I can take a look.

@Dzin It looks like everything is normal, it connects from the 3 pin socket on the laser module (which is power, ground and TTL) then the other end will plug into the controller board (laser output).

@cmenke That means a status message coming from the laser was corrupt, so it sounds like you have a communications issue more than an over heating problem but I can't be sure. Electrical noise (even from the motors themselves or something else nearby) can cause problems if you have a low quality USB cable. Usually if it's a memory issue on the Nano using Simple Streaming will make it improve so that's another reason to think the problem is something else.

@Dzin Pictures?