Ok, am I missing something?
I just printed a plant pot 0.4 nozzle 0.2 layer height.
Sliced it and it said 9ish hours.
Started printing and then thought as it’s just a basic shape I could have used a 0.6, or 0.8 nozzle and speeded it up.
So I stopped the print changed the nozzle size in Bambu studio 0.6 and 0.3 layer height and the print time increased to 12ish hours?!?!?!
I tried again changed the nozzle size in slicer to 0.8 and 0.4 layer height and the time went up again to 15ish hours?!?!?!
What am I missing?
Surely it should go down not up?
Increasing the nozzle and layer thickness will decrease the print time, not increase it.
Something is wrong there.
Can you provide a screenshot of your prepare screen, particularly the printer selection and nozzle height choices…
Also one of the preview screen results showing the breakdown of slicing for each 0.4, 0.6 & 0.8 nozzle sizes.
Check the values of each nozzle printing speed.
Just tried a quick slicing test myself with a 550% cube - with 0.4mm 0.2lh, 2 shells, 15% infill - 8h9m
Changed to 0.6 nozzle, 0.3 layer height - 9h13m - so same results as OP
Went up to 0.6nozzle/ 0.42m layer height and it did go down to 7h47m - so a tiny bit faster than the 0.4 Nozzle
I don’t really personally ever bother with 0.6mm nozzles - other than for less detailed multi coloured prints - where the increased layer heights brings good benefits due to the reduced number of colour changes.
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