Jump to content
Ultimaker Community of 3D Printing Experts
PeeWee3D

Core 2 down while only printing with Core 1

Recommended Posts

Hi !

 

Strange problem: I'm printing several large pieces without any support, using only printcore 1 in Blue Ultimaker CPE, but the UM3 sometimes begins the print by lowering core 2, which ruins the print...

 

Q1: why ?

Q2: can it damaged itself in the process ?

Q3: I now flick the lever by hand when I see this happening... Am I allowed to do that ? Does it confuse the printer ?

 

Any help appreciated :)

Share this post


Link to post
Share on other sites

It may be that it's trying to do the skirt with both materials. Are you printing with a skirt? If you turn off the skirt, does it still try to start with Print Core 2?

Or is this happening during the leveling process? It should active level both Cores.

 

The printer should know which Core is down at any point in time by homing and going to the switching bay before any activities where it matters which Core is in the "active" position. 

 

To be safe, you might want to go ahead and calibrate the lifting switch: 

 

Share this post


Link to post
Share on other sites

Thanks for the reply.

 

I calibrated the lever too be on the safe side, and am now printing with a skirt and core2 in the correct position for now...

 

I will keep you informed if the problem happens again :)

 

But why in hell would it try to print the skirt with both materials as you suggested ???

Share this post


Link to post
Share on other sites
9 hours ago, PeeWee3D said:

It just did it again while printing the calibration XY test ! :(

This would happen to me periodically until I made a change. Now, I do not remember the change since I have been recycling working project files. I know that is not much help to you, but if you post a project file, someone or myself can look at it to see why it is trying to use the second core even though you may not be using it.

 

But, on the X,Y calibration, it will outline both materials as a priming function since it is going to use both cores to calibrate each other with. Or, I may be misunderstanding (Highly possible) and as @fbrc8-erin suggests, a vid would be helpful. But at all times, when using both cores for anything, it will do an outline for the secondary nozzle.

 

Secondary nozzle would be if you use a PVA brim, that goes down first along with the support layer foundation. Core 1 becomes the secondary nozzle as it is not the first used. And, it will outline everything it needs to so that it ensures proper priming. At least that is what I have extrapolated.

 

But if printing with just core 1, I used to get core 2 doing some sort of blob and initial priming. I just cannot remember what I did to alleviate that.

Edited by kmanstudios
typelexia
  • Like 1

Share this post


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

Announcements

  • Our picks

    • Architect Design Contest | People
      The goal of this contest is to design a set of people figurines that could be used in such a project to make an area, office or mall seem populated. 
      Think of different types of people in different environments, like walking people, people standing still, working people, and both men and women.
       
      • 4 replies
    • Taking Advantage of DfAM
      This is a statement that’s often made about AM/3DP. I'll focus on the way DfAM can take advantage of some of the unique capabilities that AM and 3DP have to offer. I personally think that the use of AM/3DP for light-weighting is one of it’s most exciting possibilities and one that could play a key part in the sustainability of design and manufacturing in the future.
        • Like
      • 3 replies
×

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!