Falcon2 40w not cutting shape correctly and double font


My laser cutter is not cutting shapes correctly and font keeps burning or cutting with what looks like a shadow or double cut. I cut a sample circle with font in the middle. The font looks like it was engraved twice and the circle in the middle has a break in it and is not round. The circle cut out is flat on two sides. Im assuming its two separate problems and i have no idea where to start.

Did you fix it? I have the same issue

Do you think the air assist pushed the piece around during your run? Can you tape down the edges?

No, i still havent fixed it. I found a work around with the double engraving. I just turn off bi directional fill. Still cant cut a round circle though. Everything ive researched says to tighten or loosen the belts but nothing has worked. Ive even gone into lightburn and collaborated the axis.

I had weights on the board. Ive even run without air assist on. I still cant figure this out.

I don’t have the laser in front of me but sounds like something is loose in the assembly? Any slack in wiggling the laser head?

Nope. I have tightened, loosesned, and squared every screw and every corner. She can make a clean circle when on fill but not on line. The gantry is straight, the belts have been adjusted. We even used a tuner and strummed the belts to make sure they were tightened and hummed at the right frequency. I’ve even sung “What’s Up” at the top of my lungs to her. Okay, that last one was mostly just for me.

Damn… that’s a tough one. Maybe a bad board or loose connection? Grasping at straws. :confused:

1 Like

Have you seen these 2 posts?
Seems somewhat similar to your issue:

Summary :

  • Check that all your screws and belts are tightned enough (but no too tight!)
  • Ensure the frame is square
  • Check the wheels for signs of ware out
  • Disconnect cables to check for bent pins - take extra care when replugging each cable
    In most cases, the above should fix this type of issue.
1 Like

Thank you, yes I’ve done all the things. The wheels are the last thing i have to check. I think i have read those posts, or at least several like it. Ill get back to figuring it out next week.

1 Like

Hi good ppl. Any idea what causes this. Happens with line and fill, 40w and 1,8w (or whatever this light laser module is).

Hello R_Rästas,

The photo does not show on my screen.
Looks like an interrupted upload.

Cheers.

Weird, looks fine from my side. Can u open it this way? https://drive.google.com/file/d/1m4mSsJeNzVCvTx7JXgeRqdY2cbuKpgQy/view?usp=drive_link