Jump to content

Delamination and Z axis movement


JohnFox

Recommended Posts

Posted · Delamination and Z axis movement

Hello,

I am attempting to print some small geometric shapes, typical dimensions are 60mm x 40mm on the X & Y and 30mm on the Z axis.

Periodically and at random, I am seeing what appears to be the Z axis travel to be more than the set amount. Current setting is 0.1mm and I suspect the drop on the build plate to be around 0.15 - 0.20mm when the problem is seen. This causes an obvious band all the way round the print, which in some cases starts a delamitation. When I peel the object apart at the fault, I can see that the walls have not fused to the layer below, implying a greater than normal Z axis shift.

The problem bands occur once or twice per print and always show all the way around the print with the next layers looking perfectly normal.

The printer is only 2 weeks old, seems to perform perfectly apart from this. I am using ABS.

Any ideas?

thanks in advance

John Fox

  • Link to post
    Share on other sites

    Posted · Delamination and Z axis movement

    Which printer do you have? Please update your profile settings to indicate this. Also update your country/location as advice changes often depending on the country.

    What you describe can happen but usually if there is a layer like this it can also be caused by underextrusion due to temporary tangling filament, temporary cold layer (often due to fans coming on) and similar things like that.

  • Link to post
    Share on other sites

    Posted · Delamination and Z axis movement

    Just done the profile - forgot about it.

    I certainly have had problems in under extrusion, (something in the nozzle), that seems to have cleared now.

    I am about half way through a spool of filament, is it necessary to try and uncoil it? It seems to be quite highly coiled as it nears the centre.

    John

    Which printer do you have?  Please update your profile settings to indicate this.  Also update your country/location as advice changes often depending on the country.

    What you describe can happen but usually if there is a layer like this it can also be caused by underextrusion due to temporary tangling filament, temporary cold layer (often due to fans coming on) and similar things like that.

  • Link to post
    Share on other sites

    Posted · Delamination and Z axis movement

    Just had another 'event'.

    About 10mm vertical height printed perfectly, then one whole layer incorrect with quite an obvious gap all the way round, subsequent layers then OK until I aborted the print.

    Spool is OK, extrusion of all the layer seem OK, what is happening occurs to a single layer only.

    John Fox

     

    Which printer do you have?  Please update your profile settings to indicate this.  Also update your country/location as advice changes often depending on the country.

    What you describe can happen but usually if there is a layer like this it can also be caused by underextrusion due to temporary tangling filament, temporary cold layer (often due to fans coming on) and similar things like that.

  • Link to post
    Share on other sites

    Posted · Delamination and Z axis movement

    I think I have fixed it!

    I suspect the problem is a mix of the ABS (with high warping ) and my design. The object had several right angle corners and I think these create a lot of stress which caused explosive de-lamitation across a whole layer. I have redesigned the item with radius curves on most of the corners and the latest print was fine.:)

    thanks

     

    Just had another 'event'.

    About 10mm vertical height printed perfectly, then one whole layer incorrect with quite an obvious gap all the way round, subsequent layers then OK until I aborted the print.

    Spool is OK, extrusion of all the layer seem OK, what is happening occurs to a single layer only.

    John Fox

     

    Which printer do you have?  Please update your profile settings to indicate this.  Also update your country/location as advice changes often depending on the country.

    What you describe can happen but usually if there is a layer like this it can also be caused by underextrusion due to temporary tangling filament, temporary cold layer (often due to fans coming on) and similar things like that.

     

  • 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
          • 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...