Help diagnosing issue - failed prints / no extrusion - i3 mk3s
I'm at a loss, and trying to figure out what could be going on with my printer. I have an i3 MK3S+ that is a few years old, it's been reliable as can be until it wasn't.
Starting a few weeks ago my prints started failing mid-way through. Basically the printer thinks it's printing but there is no filament coming out. Imagine a bench just cut in half mid print. I can load and unload the filament just fine - then start a new print and it'll work for a bit then fail. It does not fail at the same layer each time, or after the same amount of print time. I've changed the nozzle, checked the gears, fan, make sure nothing is jammed but can't find a solution. I've given it a full once over on the normal stuff.
I've been able to get some finished benchy prints in the past few weeks - then I'll go to print something else or a different benchy, and it fails - same fail every time. Nothing on the filament or on the print to give me any clues as to what is going on. When the prints are successful they look perfect.
I've tried different rolls and brands of filament, including brand new prusament & esun pla+
RE: Help diagnosing issue - failed prints / no extrusion - i3 mk3s
Can we please have some pictures of the extruder nozzle etc.
is the printer in an enclosure?
Where in the world are you located please?
what type of nozzles are you using? are they genuine e3Dv6 nozzles?
do you have another new nozzle of the type you have been using? if so, can we please have a picture?
|Do you have an indicator of whether the extruder motor is actually turning when the printer stops extruding, maybe an indelible ink or paint mark on the motor shaft would help.
is the filament gouged out by the extruder hobbed gears (Bondtech gears) when the problem happens?
Is the motor spindle hobbed gear grub screw tight onto the flat on the motor spindle?
is the extruder idler gear spindle inserted partially into both plastic ears in the idler block?
does the idler gear spin freely when the idler door is open?
long didtance fault finding is not easy...
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK