34
This chapter describes the most common issues and how to fix them. The next page gives an overview of possible error
messages on the Ultimaker 2+. For more instructions, visit our website:
www.ultimaker.com/support
.
EXTRUSION PROBLEMS
Extrusion problems can have several reasons. The nozzle could be blocked, so no material can come out. It could also
mean that the Ultimaker 2+ does not extrude enough plastic, leading to very thin or missing layers in a print. This is
called “under extrusion”.
In most cases, extrusion problems are caused by some dirt or carbonized material in the nozzle (or another hot end
part) through which a (partial) blockage is created. In order to solve this you can:
•
Check if the filament has not grinded in the feeder. If it did, remove it from the machine first.
•
Ensure that the white insert clip to set the tension on the feeder is in the middle.
•
Try manually to extrude some material by using the ‘Move material’ option in the Advanced menu. You can put
some extra force on it by manually pushing the material at the feeder while doing this.
•
Use the Atomic Method to remove any dirt or carbonized material from the hot end.
After having used the Ultimaker 2+ for a longer time, it could also mean that the TFM coupler has deformed, causing
friction to the filament. This consumable item has the tendency to wear over time due to the heat and pressure from
the hot end. If none of the above described options works, it is advised to take a closer look at the TFM coupler.
A deformed TFM coupler can be recognized by a (small) brim on the inside at the bottom.
CANNOT CONNECT TO CURA
If Cura does not recognize your Ultimaker 2+ when you want to upload firmware, there is a problem with the connection
due to software or hardware failure. In order to solve this you can:
•
Make sure everything is connected properly (power supply and USB cable) and that the Ultimaker 2+ is turned on
when uploading firmware. You can also try another USB cable.
•
Check if the latest version of Cura is installed on your computer.
•
Try connecting to a different computer, preferably with a different operating system.
PRINT NOT STICKING TO BUILD PLATE
When prints do not stick to the build plate, a few things could be wrong. It could either mean that the first layer does
not stick well enough or that the prints gets loose due to “warping” of the plastic. Warping basically happens because
of the properties of the plastic. Plastics have the tendency to shrink when cooling down fast (some plastics more than
others), which could eventually lead to your print curling up (at the corners). You will especially notice this behavior
when printing ABS, which has a relatively big shrinkage.
In order to decrease the amount of warping and have a good first layer you can:
•
Check if the heated bed is set to the correct temperature (60 °C for PLA and 90 °C for ABS).
•
Make sure that the build plate is properly leveled.
•
Clean the glass plate completely.
•
Apply a thin layer of glue to the glass plate.
•
Use the “Brim” feature in Cura to prevent warping. “Brim” will place a single layer thick flat area around your object,
thus creating a bigger adhesion surface.
TROUBLESHOOTING
