Has Anyone had any issues with material either not cutting or bubbling up when it does cut through? i recently bought an S1 40W laser to produce electrical panel labels for my company. i've been struggling to get the correct settings for cutting. engraving works great but when i try to cut out the material it ususally doesn't cut all the way through (or even half way through) or leaves a horrible cut edge on the material if it does. 

I'm cutting fairly thin Trotec - Trolase 1.6mm Black/white acrylic base plastic Part# L402-206 with a 3m adhesive backing.

I'm sure the laser is powerful enough to cut through such thin material. but i figured it would be alot easier to cut through such thin plastic. my only settings that leave a sub-par finish is 25% power, 5mm/sec, 3 passes with lower focus set to 3, Air assist is on auto (high). i've tried no air assist, med, low, etc but i get the same result.

i've attached the Cut test peice i made with square grid layouts to show what i am talking about.