Sorry, I meant two at the same time, I wasn't suggesting I can get 2 nozzles to print 4 items simultaneously. The camera built in is a plus.
I would like to know how you guys avoid 4 nozzles dragging across eachother prints, even with 2 heads it can be a challenge. Let's say you wanted to print a very large object in one colour on your machine, would I need to remove the 3 other heads? or what is the variance on each nozzle height?