Jump to content
Ultimaker Community of 3D Printing Experts

Pla flex in ultimaker 2

Recommended Posts

Hi I do not think your statement is 100% accurate. My understanding is that this applies to all Bowden tube printers, you really need a direct drive printer for this. But people on this forum have succeeded with flexible filament. I tried Colorfabb's nGenflex a year or so back; it was not too difficult to get it feeding through the Bowden tube drive system OK but I failed to get a decent surface finish and gave up.

Share this post

Link to post
Share on other sites

In the beginning, Ultimaker even sold a flex PLA. I tried a number of Flex PLAs over time with more or less success. The more flexible the PLA is, the worst the results. NinjaFlex and similar do not work at all, but the less flexible ones can be used.

You have to tune the parameters though. I use extremely slow print speeds -  10mm/s usually - and no retractions if possible. It also helped me to lubricate the bowden tube with a little dash of WD-40.

Share this post

Link to post
Share on other sites

I changed my feeders into Bondtech and with these it works much better, I get decent results with Ninjaflex. They have much better grip than the original feeders.

Speed must be less than 10mm/s, though, I print first layer, top and outside with 4 and the rest with 8.

Still works with more, but with frequent brief periods of underextrusion, smothering object becomes a bit spongy / porose.


Attached a photo of rubber feet I printed, diameter about 2cm.

And damper feet for the printer.






Edited by conny_g

Share this post

Link to post
Share on other sites

I am printing PLAflex (by rigid.ink) with the help of Bondtechs new DDG just fine, even at "moderate" speeds. I just print a set of wheels for a 3DLabprint RC plane at 50mm/s. (Using an UM2+). Didn't get around to try some of the even softer materials yet, but so far this is a big improvement over the stock feeder. I am quite happy with these results.



Edited by StephanK
  • Like 1

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Our picks

    • Ultimaker Cura | a new interface
      We're not only trying to always make Ultimaker Cura better with the usual new features and improvements we build, but we're also trying to make it more pleasant to operate. The interface was the focus for the upcoming release, from which we would already like to present you the first glance. 
        • Like
      • 114 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!