Cray0

I don't think so. If it is crazy, then you and I are in the same asylum. I agree completely. So much so that I have been working to make all of the quality settings to be based on a percentage of the nozzle size. This includes layer_height, but there seems to be a problem with how it is calculated out of the box, as you described. The upper display seems to be calculated properly from the full stack, but the actual setting seems to be on the extruder's default nozzle size only. In other words, layer_height = =machine_nozzle_size*0.5 always results in layer_height calculated as 0.2 (half of 0.4 nozzle, which is the default), no matter which nozzle size you select. I am happy to tell you, I have found a workaround in order to calculate layer_height from a nozzle variant. Try: layer_height = =round(0.5*extruderValueFromContainer(0, 'machine_nozzle_size', 1), 2) The first argument (0) of extruderValueFromContainer() is the extruder number (0 is the first, and probably only extruder for most people), and the last argument (1) is (I think) the amount of containers/stack to skip, and it seems that the first container is the one that miss-calculates. Or something like that anyway.