Jump to content

Failing prints


Recommended Posts

Posted (edited) · Failing prints

Hi guys, i'm using an ender3v2, it's bone stock and since i have it i've burn probably like 10 roll of pla and it's been running flawless since day 1, now i'm having my first fails and don't know where to start.

 

Problem occur when there is retraction-extrusion, if it print a constant line, print is good. So i know my bed leveling is good because prints are ok when there is a constant line without retraction.

 

The picture i took is the start of the first layer from a plate with tons of 4mm holes and i printed this project already a dozen of time and it was flawless, same file, i didnt mod anything to the printer.. so i'm guessing something mechanical on the printed is good bad.. but i'm kinda lost and not sure where to start..

 

Last picture is the plate i printed in the past without defect like i'm having now.

 

Anyone have an idea of what would cause this?

 

 

 

 

fail1.jpg

fail2.jpg

fail3.jpg

good1.jpg

Edited by th31nfamous
  • Link to post
    Share on other sites

    Posted · Failing prints

    Looks like a bed adhesion problem.

    Do you still have the stock plastic extruder?  The stock pressure arms are very prone to breaking (see the image below).  Take it off and look at the underside of the arm.  Under-extrusion can be mistaken for poor bed adhesion or a bad leveling job as all three cause insufficient squish to the build plate.

    I can't see an ABL in the images...have you changed the way you are leveling?

    Are you using anything to aid bed adhesion (glue-stick, hairspray, etc.)?

    The bed looks clean.  Have you given it a good wipe down with isopropyl alcohol lately?

     

    Here is the underside of a stock Ender 3 pressure arm.  Some were delivered like this.

     

    2047162190_crackedEnderarm.thumb.jpg.f719aeb6a3f8fd87ea0bf99b05501e67.jpg

     

     

    • Like 1
    Link to post
    Share on other sites

    Posted · Failing prints
    32 minutes ago, GregValiant said:

    Looks like a bed adhesion problem.

    Do you still have the stock plastic extruder?  The stock pressure arms are very prone to breaking (see the image below).  Take it off and look at the underside of the arm.  Under-extrusion can be mistaken for poor bed adhesion or a bad leveling job as all three cause insufficient squish to the build plate.

    I can't see an ABL in the images...have you changed the way you are leveling?

    Are you using anything to aid bed adhesion (glue-stick, hairspray, etc.)?

    The bed looks clean.  Have you given it a good wipe down with isopropyl alcohol lately?

     

    Here is the underside of a stock Ender 3 pressure arm.  Some were delivered like this.

     

    2047162190_crackedEnderarm.thumb.jpg.f719aeb6a3f8fd87ea0bf99b05501e67.jpg

     

     

     

    Thanks for the reply!

     

    Yes i still have the stock plastic extruder, i just did remove the arm and no crack found under it, and there's no abl installed, I manually level my bed.. i don't use glue stick or anything but i always wipe the bed with alcohol before each print... I understand that everything point to a bed adhesion problem.. but at the same time why would the wall that print constant (without retraction) get perfect adhesion?

     

    I will try a test print with gluestick on the bed to see if it helps

     

     

  • 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

      • Introducing the UltiMaker Factor 4
        We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
          • Thanks
          • Like
        • 3 replies
      • UltiMaker Cura 5.7 stable released
        Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more. 
         
          • Like
        • 26 replies
    ×
    ×
    • Create New...