Hermera TPU jam and clogging (Solved)

Discussion in 'HotEnds & Extruders' started by Daniel Seah, Jan 27, 2020.

  1. Daniel Seah

    Daniel Seah Member

    Jan 13, 2020
    Likes Received:
    Hi all, im having trouble and frustration for the past week. And finally my issue is solve and wish to share my experience to all. But of course, its just happen to my setup only.

    Machine; Ender 3
    Mainboard: SKR Mini E3 V1.2
    BL touch

    For installation of the direct drive kit, please follow Teaching Tech guide on youtube "Complete Hermera Setup"
    VREF setting for TMC 2209, please change to 840 instead of 940.

    Im using Sainsmart 95a TPU and the setting is

    Layer height 0.24mm
    Reaction Distance 1mm
    Reaction speed 20 mm/s

    Print speed 40mm
    Hot end temp 215

    Other den VREF setting, the rest is quite easy to solved and the Hermara prints good. For V6 hotend, some PLA or Petg will just clog and had to open up and service. Sorry for my poor english and hope everyone have a happy printing exprience.
  2. Danny Baughan

    Danny Baughan Member

    Dec 24, 2019
    Likes Received:
    Glad your issue is "solved" but aside from open up and service I'm not picking up on what you think the route cause is.
    I appreciate the language barrier but could you please give some further insight?

    Many thanks,
  3. Thorinair

    Thorinair Well-Known Member

    Aug 8, 2017
    Likes Received:
    His root cause was the incorrect VREF setting.

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