I purchased an Ultimaker 2 from MindKits here in New Zealand last week, and finally had time to set it up today. While I wait for MindKits to get back to me I thought I'd ask this question to the forum:
Try as I might I cannot seem to stop the E motor from "clicking" and slipping backwards while driving the filament in to the bowden tube.
Things I've tried:
- Plugged the printer in to a PC and let Cura upgrade the firmware to the
- Unclipped the bowden tube at both ends, pulled out the filament and installed
fresh filament, and checked the bowden was aligned properly.
- Checked that the filament comes off the spool without friction.
- Did the usual reprap unclogging manoeuvre (heat up, cool down, pull out
filament at about the glass transition temp) and got a nice smooth clean plug,
which suggests no blockages.
- Turned the E current up to various different values.
- Factory reset the printer from the internal menu.
- Reduced the clamping pressure on the extruder motor.
- Increased the printing temp.
I tried printing the "underextrusion test" but the motor begins to skip while printing the priming skirt around the object, and attempting to print an Ultimaker robot scaled up 2.5 times on Cura's "fast, low quality" has the E motor clicking and slipping on the first layer.
If I use the "move material" jog wheel option in the built in menu, every jog of the wheel leads to a slip.
Any suggestions? Is something faulty with the unit?