Couldn't agree more with the marketing dimensions problems on the R2. In the field of R&D where dimensions are critical, a few millimeters makes all the difference. Overstating your working dimensions, even nominally for marketing purposes, just causes unhappy people. I expressly bought this R2 unit to replace my dying R1+. I used the R1+ to print a field duty box that houses a RPi 7inch touch screen. So with a screen width of 193 mm and two 3mm walls on the box, I figure I'm golden. But I'm not golden, am I? I'm actually out $1600 bucks on a tool I bought to perform a specific task that was within the published parameters of the tool. Argh!