I am just trying to figure out, what the lowest possible layer height might be. I did some googling and found, that usually it is between about 0.05 and 0.1. However, I just printed a camera mount cover with 0.01mm and it came out really smooth around the sides. So smooth in fact, that I could’t feel the layers. Orca Slicer did not complain about the low layer height as well (it does, if I go over 0.28 with a 0.4 nozzle) and calculated all the layers correctly. So what is in fact the lowest possible layer height?
The math used by the slicer or the printer’s FW may not have enough resolution to go lower than some lower limit (though probably not a likely cause if everything is using floating point math)
The size of the model, combined with very high layer counts, may exceed some limit in the software causing it to crash during slicing
The positioning accuracy of the mechanics which is probably the limit you’ll run in to first
I wouldn’t expect the slicer to complain about any layer height. It’s not checking for “absurdity”, it just does the math with the parameters you define, and it generates the tool path with the expectation that you, the user, know you gave it valid parameters to work with.
That limit may be a function of the nozzle diameter. Go to 0.6mm and I bet that number gets bigger. In which case it’s not a “math” limitation, but a limit of the physics of the nozzle that the slicer adheres to.
Going to a higher layer height is a different “problem” with different constraints compared to going to a lower layer height.
