UM2 spring replacement

This replaces the spring - it has a hole so you can see the bowden inside

3D printer parts and enhancements

    Creative Commons Attribution Share Alike

    Commercial use is allowed, you must attribute the creator, you may remix this work and the remixed work should be made available under this license.

    Learn more or download attribution tags


    I printed this from ABS because I wasn't sure how hot it gets in there - PLA is probably fine but I didn't want to risk it. Works great.
    Print it as shown (which is upside down) as it prints better like this with the gradual overhang instead of sudden overhang inside.
    The flip it over such that the teflon hits the sharp shelf.  I recommend printing with one (1) line of brim and then it locks into the aluminum nicely.
    This is designed to be the right length for the Olsson block but without the i2k.  If you have an i2k you want to print this slightly shorter.  Just put the stl file into Cura, go to SCALE  feature, unlock the 3 axis, go to absolute mode (versus percent mode) and reduce the length by the thickness of the i2k.



    Issues are used to track todos, bugs or requests. To get started, you could create an issue.


    Mini rowiac avatarrowiac added this to the UMO Mods collection ago
    F77664944d69a98a1027a8327d54ec7c?default=blank&size=40my3d added this to the UM2 collection ago
    C6f0193c25723df61ce85f3d894b5300?default=blank&size=40David F. added this to the UM2+ collection ago
    Ca87054cdacbdb4bb22357456b281e2e?default=blank&size=40rt345 added this to the new collection ago
    3063615ca0d1c94e83ffea72afe30666?default=blank&size=40stargazer added this to the UM2 collection ago
    65a6d5f8c94e52a3ba6543b66d529f28?default=blank&size=40lab added this to the UM 2 Updates collection ago
    Mini account photoVan Morris added this to the Um2 Go collection ago
    Mini simbolo logo3dsolid 90 80pxFerGazz added this to the Upgrades and Mods collection ago
    88591ba5e59422d49d1685ff57e09a20?default=blank&size=40tuttoflash added this to the Ultimaker collection ago
    806dc97068076b24104b972e9968db7d?default=blank&size=40ch0ptank added this to the UM2 collection ago
    Mini profilna slikaNikola Blažević added this to the 3D Printers collection ago
    Cc08ffa669f01f88c5864727d98fa191?default=blank&size=40nilrog added this to the Ultimaker extras collection ago
    74bf6ba057353908716e34b6865b84d3?default=blank&size=40asbmaker79 added this to the ultimaker2 upgrades collection ago
    Mini 11754397 10206328150656315 4100330236590689548 obortek added this to the UM2 collection ago
    7b52db6bc8c81d27bdaedd546c262ef3?default=blank&size=40James added this to the Ultimaker 2 Upgrades & Parts collection ago
    B8634c804cdf37e9d5e091270a0f2baa?default=blank&size=40nzherbi added this to the Ultimaker Upgrade collection ago
    923493e3bdd1530d4ae9909f093657a3?default=blank&size=40leadboss added this to the Things to print collection ago
    Mini um1Joerg Torhoff added this to the Ultimaker 2 collection ago
    987c5ceadcbccee52137d23bdda54b1e?default=blank&size=40avogra added this to the UM2 stuff collection ago
    60c8691cedfcf939fc352716b43d5248?default=blank&size=40Chris Branson added this to the Printer Parts collection ago
    63f63031f3c4b2789b9e91c8676fd102?default=blank&size=40Aurelien LAPEYRERE added this to the Impression 3D collection ago
    Mini lb   hatBraswell McMeans added this to the UM2 Parts collection ago
    9606c97675ca2694d288a7fa28324572?default=blank&size=40Antony AUFFRET added this to the ultimaker collection ago
    C56bb8a7a01df4e38fc1e58135de6d23?default=blank&size=40JustKrys added this to the Things to Print collection ago
    381cacde4aa066757801861a496ab142?default=blank&size=40Bad_Block added this to the ultimaker collection ago
    Mini aviator2 small png iconChris added this to the UM2 Parts collection ago
    21426531408b141780392706e0e322e4?default=blank&size=40MajorKoos added this to the Ultimaker 2 Upgrades collection ago
    269c77b576d6f30b92552d48c7bba569?default=blank&size=40gr commented ago

    Regarding the 175 - this was originally created to work with a 1.75mm conversion kit I sell (I give these away with the kit) because I realized many people put this in the second nozzle position on the head and then just switch the bowden back and forth to switch filament. But this part works fine for either 1.75mm or 3mm filament - it makes no difference as the teflon part and the outer diameter of the bowden are the same.

    Mini ulti2arjanUltiArjan commented ago

    oh and your file names say 1.75 but looking at the dimensions it seems for the standard 2.85 setup.

    Mini ulti2arjanUltiArjan commented ago

    sounds like a smart idea, I'll give it a try next time I need to take the head apart.

    269c77b576d6f30b92552d48c7bba569?default=blank&size=40gr commented ago

    3 reasons for the hole - all to do with vision:

    1) You can see if the bowden is properly seated - it's possible the that bowden feels like it's all the way inserted but it's hung up on the aluminum above.

    2) You can see the filament - sometimes I think the filament has hit the nozzle but actually only just got past that hole. this is not as important.

    3) Proper assembly. Tighten/rotate the round not all the way until it won't go any further, then put it all together except for the bowden. Then look inside that hole as you "loosen" the round nut (or raise the nozzle) and you can see exactly when the teflon touches the ledge inside my part. That way you don't put any extra pressure on the teflon part.

    Mini ulti2arjanUltiArjan commented ago

    I printed korneels original version in XT, used it for a long time, temperature is no issue. Any reason you added the hole in the front?

    Cb013efa08026866713ee8ea4f98a733?default=blank&size=40Sergey Fedorov added this to the Ultimaker 2 Upgrade collection ago
    Mini screen shot 2013 07 15 at 6.49.36 pmErik de Bruijn added this to the Ultimaker 2 upgrades! collection ago
    Mini reiner 001 2Reiner Bühl added this to the Ultimaker2 collection ago
    269c77b576d6f30b92552d48c7bba569?default=blank&size=40gr published this design ago