Can't you move them around on the build plate, and in that way influence the printing order?
In older Cura versions you could print multiple models apart, as long as they would not collide with the print head and rods. So you couldn't put very much parts on the bed.
I haven't tried this in newer versions.
But especially for very small parts, printing model per model separately, instead of all together, might not always be a good idea: then the model does not get enough cooling, since the hot nozzle is constantly on top of it, radiating heat, and adding hot filament. So it has no time to cool and solidify. This is why I often print a dummy "cooling tower" next to my small models, so the nozzle moves away printing someting else, and the model has time to cool. (Just moving the nozzle away without printing is also not good, this interrupts the flow, and changes melt-temperature and viscosity, which shows up in the print. Flow and temp need to remain as constant as possible, especially for small models, in my experience.)
The effect of heat on small models. The dummy towers minimise the effect, but do not eliminate it. (Printed at 0.1mm layers, 100% infill, don't remember temp and speed, ruler is in mm and cm.)
Nice suggestion! I don't know if there is any way to do this yet (I suspect there isn't), but that would be a handy feature for sure!
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