X axis - calabration layer shifts
hi all
just made an MK3S+ last week and i can't get the x-axis any better, on the belt test its at 246 at present and i keep getting layer shifts as you can see in the pictures,
if the belt is to slack it just jumps all over the place and if to tight it fails the test , it did start off about 190 ish but i dont seem to be able to get the numbers any higher.
at 246 its with intolerance so any ideas on how to make improvements would be appreciated , coming from an ender 3 where the belt is tight ( makes a twanging noise ) seems strange the belt on the prusa would be loose
the cube is the 20 x 20 XYZ
RE: X axis - calabration layer shifts
don't rely on the sensor numbers - they really aren't very accurate. If the belt is flouncy, tighten it up. It should thrum a low note - and not too low at that.
There is a print on the print library that Prusa posted that is a GCODE file that prints a PETG tool that is a belt tension meter. Get your belts a little tighter - strum with your finger - and when it goes from "plugh" to a note that you can recognize is that no-more-flouncy change up, try printing the belt tension meter. Then use that to adjust your belts.
The other thing that can make that happen is if your grub screw on the X pulley (or y pully) were not tightened in the right order.
RE: X axis - calabration layer shifts
many thanks dan ,
my belt was a little to slack , ordered some petg and printed this https://www.prusaprinters.org/prints/46639-tension-meter-for-the-gt2-belts-of-i3-mk3s-or-prus
worked great this should be in every printer box would save a lot of people asking and problems
RE: X axis - calabration layer shifts
Check if the pulley is properly secured to the X-axis motor.