I have had the snapmaker 2.0 A150 for a while. I am very happy with it, but there is one thing you need to know. If you change the module, for example the print module to the laser, you must, and this is very important, recalibrate the laser to the print plate before you press the home button, otherwise the module will inevitably drill into the platform until it bends. It has no stop sensor. Unfortunately, this happened to me and now the z-axis has play. And there are no spare parts. Annoying