UM2 adjustable spring replacement

Adjustable spacer that replaces the spring or the solid spacer on UM2

3D printer parts and enhancements

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    This spacer makes it possible to adjust the height of the heater blocks individually if doing experiments with dual extrusion on the Ultimaker 2.
    The original spring proved too weak in certain conditions and the solid spacer that replaced the spring on the UM2+ makes hight adjustment impossible.

    NOTE: This design is experimental, you might need to scale the stationary part (insert) for the threads to get a tight fit. Too loose fit and the spacer might collapse under load.

    Only one of the spacers needs to be adjustable.
    The I2K version is a shorter version which is suitable if you are using the I2K washer from 3dSolex in between the PTFE and the heater block.

    Materials and methods

    I recommend to print the spacer in PETG (XT) or ABS as PLA might not be temperature resistant enough.



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    C9e1692204e72514bcc46bbbfdc9a642?default=blank&size=40MacMA added this to the Steffen collection ago
    608bfb8d214bd67b0e67074249b8bcae?default=blank&size=40THOMAS CARLI added this to the ULTIMAKE 2 collection ago
    Mini 1Dubai Bunnies added this to the Print collection ago
    D22a4a307819fbb007e9e412bbdc63bc?default=blank&size=40brhamburg added this to the UM2 collection ago
    01b798b9793b041b624f5c38a214e2fe?default=blank&size=40Eric Psalmond printed this ago
    Carousel thumb img 20170405 145200
    Printed on:
    ultimaker 2+
    Works great in PC. Printed the nut at 103% on the x and y in Cura and got a nice fit.
    236c29fecdf077335a97d757f197c9f1?default=blank&size=40Lotusboy added this to the UM2 collection ago
    B4da209a12de3776353e3523a46870ea?default=blank&size=40Mike28M added this to the UM2 collection ago
    Mini profileChristopher Bray added this to the Ultimaker2 Upgrades collection ago
    Mini dim3nsioneer 3Dim3nsioneer printed this ago
    Carousel thumb img 3162
    Printed on:
    Ultimaker 2
    A perfectly fitting spacer - what else... ;-)
    F15b70fe02a706b1d97ad3979d3ebef1?default=blank&size=40Y Low added this to the Ultimaker 2 Go+ collection ago
    Mini aviator2 small png iconChris added this to the UM2 Parts collection ago
    6fe419e9d9e8a893bf30f7b9d92b1f68?default=blank&size=40kesjeff added this to the Ultimaker collection ago
    Mini 2241c2348cc725c2e6cc8b960260d4b7R-Obert added this to the 3D UltimaKing collection ago
    C56bb8a7a01df4e38fc1e58135de6d23?default=blank&size=40JustKrys added this to the Things to Print collection ago
    Mini profilbildAlexander Leisentritt added this to the UM2 collection ago
    Mini ulti2arjanUltiArjan added this to the dual extrusion collection ago
    Mini ulti2arjanUltiArjan added this to the UM2 collection ago
    Mini reiner 001 2Reiner BΓΌhl added this to the Ultimaker2 collection ago
    7e45445faf9b67ba779ea0486ed9e53c?default=blank&size=40Anders Olsson published this design ago