[UM2 firmware v15 under extrusion issue ?]

Hi there,

 

I have been doing good quality prints on my Ultimaker 2 from the beginning, (I have it since about four months).

But since a while I started to have under extrusion on most of my print and that was append with any filaments I have (all my filaments are from from ultimaker)

Also I was using the same settings of before, when my print was good.

 

I tried everything I can to fix it, changing the temperature of the nozzle, the bed and many settings.

I made a lot of atomic method to clean the nozzle, I dismounted the nozzle to checked the teflon.

 

I also tried the alternative feeder from Robert and printed a bowden hook to try to improve the flow.

https://www.youmagine.com/designs/yet-another-ultimaker-2-feeder

https://www.youmagine.com/designs/bowden-hook

 

In the same idea I removed the spool and unwound the filament to reduce the tension, after I read that here :

http://ultimaker2prints.blogspot.ch/2014/11/dont-over-tighten-material-feeder.html

 

All of theses things wasn’t really a success and the under extrusion was stil there !

I was wondering what can be changed on my printer, and after one week of testing I remember I did a firmware update (15.02.1)

 

Then I Downgraded to the firmware version 14.12.1 and magical! Since I did the downgrade I did not have anymore obvious under extrusion.

Is someone know or/and have the same issue ?

 

Cheers,

Boris.

 

 

[Moving manually the print head ?]

:-)

I was looking in the options of the printer and in cura to move the print head, but the solution was so simple !

Thanks !

PS: By the way it will nice to have an option to move the print head in the maintenance menu.

 

[Moving manually the print head ?]

Hi,

Is there a way to move the print head in front (or where we want) manually ?

For exemple to be more confortable to clean the nozzle.

Boris.