filament feeder

[YTC 0]

Hi,

The PLA filament in my UM2+ shows little ripples after material change.

How can I adjust the pressure of the UM2+ feeder?

Thanks

[IRobertI 521]

Little teeth marks is completely normal. Maybe post a picture so we can take a look?

But regardless, the pressure is adjusted with a hex screwdriver in the little hole next to the bowden tube entrance.

[ultiarjan 1,223]

pictures:

http://support.3dverkstan.se/article/64-disassembly-of-the-ultimaker-2-plus-feeder

[YTC 0]

Thanks, I know now how to adjust the pressure.

But what pressure is optimal and how do reach that optimum?

[IRobertI 521]

The default is the middle position. Optimal pressure depends on filament and print settings. Trial and error is the path to "optimal" pressure. That said, I very, very rarely touch that setting. Basically the only time is if I'm trying to print some "weird" material like NinjaFlex.

[YTC 0]

So, are these filament irregularities - during pressure setting in middle position - 'normal'?