Welcome to Our Community

Some features disabled for guests. Register Today.

Is it ok to use mini wheels on z-axis?

Discussion in '3D printers' started by Pascal 3DJunkie, May 17, 2022.

  1. Pascal 3DJunkie

    Builder

    Joined:
    Jul 22, 2021
    Messages:
    5
    Likes Received:
    1
    mini-wheels.png

    Is it ok to use 3 Mini wheels on each side of the z-axis or big wheels are recommended? If yes, why?

    thank you.
     
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    14,040
    Likes Received:
    4,123
    Would be fine on a 3D printer
    On heavy loads you'd prefer the bigger wheels.
     
  3. Pascal 3DJunkie

    Builder

    Joined:
    Jul 22, 2021
    Messages:
    5
    Likes Received:
    1
    In this Picture you can see the complete x-axis. A Pencake Nema, a BMG full metal Extruder, a proximity sensor, a 5050 radial fan and, a small 30x30 fan and the 20mm gantry plate. and on the left side a nema 17 Motor for the x-axis.

    mini-wheels2.png
    Does this weigh too much?

    i ask because i have lines in my printed objects.
    fehler02.jpg fehler01.jpg

    The both T8 Lead Screws i have changed, but the problem persists.
    The heatbed and nozzle is pid tuned.

    The printer is a self made Prusa i3 clone with full bear upgrade. Bear Upgrade Guides
    (2040 v-slot Alu Frame)
     
  4. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Builder Resident Builder

    Joined:
    Mar 1, 2017
    Messages:
    14,040
    Likes Received:
    4,123
    You can check that your wheels didn't develop "flat spots" (Can happen when set overly tight and left sitting in one spot for too long)

    Also check drive pulley concentracity (cheap pulleys can wobble causing defects in XY that looks like Z banding)
    Other possible causes:
    - X/Y Belt tension
    - Wobbling extruder drive gear
    - Untuned acceleration causing harmonics
    - Badly rolled leadscrew
    - Bent leadscrew (don't rely on the wheels to constrain a bad drive system)
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice