Jump to content
Ultimaker Community of 3D Printing Experts

Z axis crashing midway through print due to slicer programming?


Recommended Posts

Posted (edited) · Z axis crashing midway through print due to slicer programming?

Hi, 

I don't really know how to describe the problem, but let's start by what I know.  I know it isn't a end stop issue, nor a print direction/configuration issue with my printer. I  currently have a anet a8 (prusa i3 clone) with a ramps 1.4 and I have had this issue ever since I got my printer. This issue has carried through the stock control board, a MKS gen 1.4? Board and the ramps 1.4. Simply what happens is when the print starts it draws the first line on the print bed which usually starts from left to right and then either raises/lowers the Z axis until it crashes the print head into the physical limits of the printer e.g. stretching z couplers or hitting the supports.

I've tried searching online and found few similar reports of the same behaviour, but I don't know how to describe it without also searching end stop/ configuration issues.

 

Here's what usually causes it:

 -Large object (~2cm margin on bed)

-Cura 3.x.x

- commonly skirt, brim (also rare with none)

 

What I know doesn't fix it:

-Changing Cura bed size

-Changing Marlin bed size

-SD Card vs streaming gcode

-Marlin version

-electrical (I've rewired it twice)

-control boards

 

How I deal with it:

-print smaller objects

- rotate/translate object

-turn off brim/skirt

-redesign parts

- use a different slicer like repetier host, slic3r, cura 15

 

Reason why I think this has to do with Cura 3.x.x is because I have only ever experienced this issue with Cura 3.x.x. In fact it was why my first slicer was repetier host (curaengine), I couldn't figure out why I was having strange printer movements with 3.x.x. I've used repetier, slic3r, curaengine, cura 15 and never experienced this issue. The frequency of this issue is almost every large print, so well over 20 prints now. I still want to use cura because of its integration with octoprint but don't want to have to run over to the printer just to hit kill when the issue arises.

I'm hoping that it's something simple that I've missed, so if you know what I'm doing wrong, let me know.

Edited by Tektechnician
Spelling error
  • 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
     Share

    • Our picks

      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 11 replies
    ×
    ×
    • Create New...