I calibrated my printer, I used calipers moved Z axis 100 mm, and the Caliper shows exactly 100!
I printed test cube several times, and the cube is perfect size on all axis.
But when I printed an object that is 250 mm my part shrinked by almost 10 mm, and I can’t figure out why or how?
My printer is 400x400x400 mm, using smoothieboard with latest firmware. The build plate goes up/down, and it’s pretty heavy, so if it would loose steps, then the part would actually get bigger not smaller (it would fall down, make a gap and print in the air). I have 4 motors for Z axis (one in each corner), with an external 4.2 amps microstepping driver.
I use Symplify3D slicer, and I use the same profile for my test prints, and the part I need that is over 250 mm tall.
As I said, when I print tests, it’s fine, but when I print the part I need, it’s shrinking… I have no clue what could be wrong.
Imported from wikidot