Material Change Issue

[Material Change Issue]

Yes it's PLA. This should help, I'll try it next time I change material. Thanks!

[NinjaFlex]

Thanks, that's very helpful!

[NinjaFlex]

I'm new to 3D printing but I'd like to add some NinjaFlex to my inventory. I have the Ultimaker 2+ which says it takes 2.85 mm diameter filament but the NinjaFlex only comes in 1.75 and 3 mm. I'm assuming the 3 mm is the one I would need but just wanted to check with some more experienced people before I purchase.

[Material Change Issue]

When I change materials in my Ultimaker 2+ the feeder breaks the material off when trying to pull it back. This leaves the feeder tube full of material which causes more problems when trying to load a new material. Is this a common problem? Any suggestions to keep the material from breaking?