Bit weird this one, but maybe it's obvious to someone else. If I manually enter these to try to set up the bed temp... M104 S210 T0 M104 S210 T1 M140 S70 T0 And then submit my job, it seems to crap out. The starting script from S35 is what pretty much unchanged from the original S3D profile; just a little PID tuning in there for bed and tool. When the job begins, it seems as if the bed levelling isn't being used, as I'll hear is scrape the bed as it reaches the back (so clearly some room for manually leveling that) but the point is that that wouldn't normally happen if I didn't submit those GCODE commands and just let S3D do it's work. As others have found, the long pause where it waits for each temp to level out adds minutes to the start of a job, so I'd like to begin to provide a faster way of getting the heating done, amongst other things.