3D LimitLess ILC, User Manual, Page: 71 / 86

Mechanical or Electronic Problems: The step-by-step adjustments of the motor
controls which could have an incorrect current setting. In the case of the X/Y
Axes, it may also be due to an excess or strain on the belts. If this is the case,
please contact our technical support department.
Note: All our printers have been individually tested with particular emphasis
on this point, among others.
8.10 Clogged Nozzle
This happens when you see the filament is not coming out of nozzle when the extrusion
is being done. The possible causes are:
The Filament temperature is too Low: It happens sometimes when you change
one type of filament for another (i.e. ABS to PLA), with the first one having a
higher melting point and you perform the initial purge to clean the hotend of
debris from previous material, you need to set the temperature closer to the ABS
melting point than the PLA’s otherwise it could form a plug in the Heatbreak. Do
not exceed the max temperature recommended by the filament manufacturer or
it could create crystallized debris in the Heatbreak and Tip.
Deformed Filament End: It can happen after the printing is finished or a long
retraction due to cooling conditions. In this case, pull out the filament from the
Heatbreak, cut a 2-3 cm piece and reintroduce.
If the problem continues after trying these options, the Heatbreak is blocked with
filament. Please contact our technical support to help you.
8.11 Plastic Bubbles in the Piece
There are bubbles on the exterior perimeters of the object. Possible causes are:
Printing Temporary Stops: It usually happens when you are
printing directly from the PC and there are communication
failures from the PC to the Printer due to background
programs, PC’s limited resources, memory, etc. Try to free the
PC as much as possible of activity both, memory and
microprocessor. It could also be an error of the PC’s USB Port
connected to the printer, try changing it. Much data is sent in
real time from the PC while printing is going on, so you should
prioritize the printing activity.
Excessive Temperature: The filament becomes very fluid when
the temperature is too high and it will come out of nozzle even
when it is making displacements in non-extrusion zones. You
will need to decrease the extrusion temperature gradually 5
degrees at the time until the problem stops.