The Silhouette Cameo 4 features: up to 3xs the speed of the Cameo 3, a LED lit touch panel, 5000 grams of force vs. 250 grams in the Cameo 3, built in roll feeder, built in vinyl trimmer, upgraded one click auto blade, tool detection, dual motor system, built in cross cutter, and more. The machine can be loud during operation, a grinding noise is normal during operation. Please contact us with any technical help questions. Most cutting issues are software setting and not hardware related. Please make sure when cutting vinyl or HTV the blade depth is set to a depth of 2. The software defaults to a cut depth of 1.