My Ultimaker2 , Ultimaker2 ext, doesn't works well at low quality.

[3dservice 0]

Hi friends,

My question is is why my Ulitimaker2 and Ultimaker2 ext is not printing well at layer height 0.15mm and 0.2mm ? at this low quality i get a very bad printing i never get it before like this king of printing quality from my Ultimaker.

while i am using latest version of cura 2.3.1 and also i updated my printers with latest firmware.

my printers working very well only at normal qality 0.1mm layer height.

please let me know how can i fix this issue?

[ultiarjan 1,223]

What is it that's bad exactly? Do you get underextrusion?

Do you still use the old -black- feeder? If so upgrade to the new plus feeder.

[fbrc8-erin 296]

Have you tried increasing the temperature? If you're trying to extrude more filament with the old style feeder, increasing the temperature can help reduce the amount of resistance you're seeing. Any photos?

[amont 0]

I have also started having problems with printing at 0.2 layer height.

I used to be able to switch between 0.1 and 0.2 without problems or having to change settings but now 0.2 has become unusable.

I have tried different materials from different manufacturers and cleaning the nozzle in case this was causing the under extrusion but it has not solved the problem.

I have also started having problems with pillowing at 0.1 on models that printed OK previously.

In view of the fact I have had other problems with Cura 2.3.1 I have reverted to using 15.04.3 however this has not helped either, which leads me to think that something that has been changed in the firmware (which I have not put back - I don't know if that is possible) is causing the problem.

[Daid 306]

The fact if it's an UM2 or UM2+ is VERY important for this problem. As the UM2 has the problem where the teflon piece slowly deforms, causing this exact problem. Requiring a new teflon piece.

The UM2+ is much better armed against this problem.

[amont 0]

Thanks Daid.

Have only seen your post recently but have now put a new coupler in my UM2 and this looks like it has fixed the problem.