Underextrustion
I guess I have a problem with the Input Shaper on the MK4. When I print PLA (Overture PLA) and the shape is as shown in the picture, I get this strange shape (I guess underextrusion) in the outer corners. Has anyone had similar experiences or tips for achieving good results despite the speed?
I have already checked and readjusted the belt tension
If you drastically reduce the speed, the result gets better.
RE: Underextrustion
Are you using some stock filament profile? It looks like incorrect pressure advance value or incorrect nozzle diameter gcode vs printer.
RE: Underextrustion
I use the standard profile for "Overture PLA" and if I am printing without Input Shaper it gets a good result.
RE: Underextrustion
Im not 100% sure if the profiles are reliable for input shaping. Most of them dont seem to change as you switch input shaping on and off. However generic pla will change to a much higher temp which is interesting. Not sure why other profiles dont seem to change for input shaping. I print with overture PLA a lot and i usually stick to 220 first layer and 215 other. Has been reliable for me so far but i may tweak it overtime
RE: Underextrustion
Thank you for the advise, I found the problem it was not the software or the input shaper but a stupid hardware fault.
The two screws that keep the nozzel in the right spot are different long, there is a difference around 0,1-0,2mm with the result that the lower screw was not fasten the nozzel. I guess with the temperature and speed of the input shaper that resulted in the bad print quality.
RE: Underextrustion
Very interesting, glad you got your problem fixed
RE: Underextrustion
So you found the problem...But how did you fixed it?
RE: Underextrustion
are the thread lengths supposed to be different? to solve your problem, where did you put the long one, top or bottom?
thanks!
kb
RE: Underextrustion
What screws are you talking about? I am having severe underextrusion issues with IS as per my post here, but I am unsure exactly what screws you are talking about
RE: Underextrustion
The long one at the bottom. After that the nozzel was not moving anymore
RE: Underextrustion
The screws that hold the nozzel inplace