Hi,

I just got the S1 a couple of days ago and it was working fine until today. I wanted to cut and engrave 3 mm black acrylic  sheets but when I started to process the job the laser would drop down all the way to the acrylic and would start scraping it back and forth. 

I tried removing the distance sensor pin and re-attaching it but it still hasn't fixed the issue. 

Any help would be greatly appreciated