A question that I’ve wondered but never found an answer to. How thin of a layer can we print. I understand this is a bit of a Pandora’s box type question so I’ll steer the conversation a bit from the start.
I work only with ABS right now to meet specific needs and many parts are large. The smaller the layer height, the longer it takes to print, but it has a major benefit of reducing layer separation and warping.
Running 1/8° nema 17 (80oz) at 1/16 micro stepping on SD8825 drivers.
2mm/rev trapezoidal lead screws from Roton.
That puts me at 1600 steps/mm in Z.
16 tooth gt2 puts me at 100 steps/mm in x and y.
My extruder is direct drive hobbed. Calibrated around 100 steps/mm and 96% on the multiplier.
The extrusion rate jumps out as a primary consideration.
The E3D V5 with a .4mm nozzle should keep up just fine.
So how do I proceed to determine the absolute lowest layer height?
(The pic is for attention and relevance. I did the battle droid at .1 and .2mm layer heights. Some parts of things like this are fine for .1/.2 but plenty of bits would be nice to do thinner.)