My laser engraves double or unclear

[AshNi (Ashwini)]

Hi, I am facing some issues on my Creality Falcon 2 22W laser engraver.

Please find the link to the lightburn forum post:

Dimensional accuracy issues Creality Falcon 2 22W

[IMG_6235] [IMG_6236] [IMG_6237] [IMG_6238] I used Creality Falcon 2 22W for almost a year without much problems. Until today, when I tried to cut a 2.4mm acrylic plate of 190 x 122mm dimension. The end product was 191 x 122.5mm. I browsed the internet and did the following things: tightened belts tightened the nut behind the laser module Reset the Machine updated the firmware to the latest version. Nothing helped, so lastly I tried the calibrate axis option on Lightburn, here is where…

Could please help me sort this out? I found another forum post where you helped somebody with a similar problem.

Also how do I know if my belts are tight enough?