[Print fails: layers stop to stick together at some point]

18 hours ago, Ray_McRay said:

- If the print always fails at exactly the same height, check your Z Axis.

- This seems like a very thin and high part, does the wall start to wobble at some point maybe?

- How is general adhesion between layers? Try to increase line width by 10-20%, that way the filament gets "squished" and sticks better to itself.

 

it is not at the same heigth that is fails unfortunately... sometimes its pretty early (at 0.5cm) and sometimes much later at 4cm.

 

So insteady of 0.4mm linewith you mean I should try about 0.45? it is weird though that the first lines are pretty much perfect, with good adhesion and nice details

 

17 hours ago, Ray_McRay said:

Z steps calibration could be another probable solution

okay, I will read into that a little deeper as soon as possible to be sure to not messing up my calibration 😄

hope it will help 🙂 

[Print fails: layers stop to stick together at some point]

Okay, so now most of my prints failed... 7 of 8 had exactly this issue, that it was perfect half way through and then failed. Any ideas? 😕

[More than one object in Vase-Mode?]

15 hours ago, GregValiant said:

Under Special Modes, set Print Sequence to One at a Time.  Make sure it works in preview but if your gantry height is greater than the height of the parts it should slice.

 

Using "One at a time" brings the Machine Settings / Print Head Settings into play.  Cura should notice if there is a crash and in that case it won't slice.

thank you so much! this makes my life so much easier 🙂

[More than one object in Vase-Mode?]

I print a lot of tiny containers that I find vase mode (spiralize outer contour) the best for.

The biggest advantage is, that there is no jumping around , it just keeps pushing filament until the print is finished. So obviously, the printer can't jump around from one print to another to finish the individual layers.

However, since the containers are so tiny, I could fit one in each corner without the printer hitting the other finished prints.

Is there any option so cura just prints a container in the bottom left corner from start to finish, then keeps the temperature, jumps to the bottom right corner and instantly starts another print in vase mode from start to finish?

[Print fails: layers stop to stick together at some point]

I randomly get some strange print fails and I have not figured out yet what causes it.

I attatched a picutre of the fails. The left side is printed in vase mode (spiralize outer contour, one wall) and the right side is printed normally with 2 walls.

At both prints, the bottom layer seems to be fine which I think means, that it's not an calibration error of the bed. 

It looks like at some point, the printer doesnt really touch the layer it is printing on anymore, goes a little distance and then touches it again, until it fails completely.

 

Ideas so far were:

-check if the temperatures are stable

-check if the filament spool has any issues

-try with a different filament brand

 

 

but none of them seem to be the problem and randomly the fail happens again.

 

Does anyone have a clue what could be the issue? Could it be a setting in cura that causes this issue?

I have the latest version of cura (4.8) and the left fail happened just today

 

edit: also just tried to increase flowrate to 105% and increase temperature from 200° to 205°, but still failed

[Single wall mesh]

4 hours ago, GregValiant said:

There ya go.  Did you end up with 1 or 2 layers?

I used two layers.

I found it very interesting how the first attempt turned out since the holes were almost melted together. My bed was not leveled as correctly as I thought. I put it down a little and then it looked perfect. I think many people have problems finding the perfect bed-to-nozzle distance, this could be a good way to find it!

 

[Single wall mesh]

3 hours ago, GregValiant said:

What you want is an infill pattern.  No walls, no floor, no roof.

Bring in a 25mm calibration cube.  Use the Scale tool, but use the absolute numbers.  Make it .4 thick and set it on the build plate.  X and Y can be whatever you want.

Layer height .2

Walls 0

Top and bottom 0

a bunch of other 0's

Infill = lines

Infill line distance = .8

Infill line direction = [0,90]

Connect Infill Lines = False

Infill Overlap % = 0

 

I think I would put a pause in between layers to insure that the first layer is hardened before running the nozzle back across it.  If you use "Grid" instead of "Lines" you can reduce the model height to .2.  The downside is that you can't put in a pause and each pass might tear up the plastic that is already in place.  

 

 

Thank you very much! 🙂

[Single wall mesh]

I want to create a mesh structure where each wall ist just one line of filament. I can't really figure out how to do that in Cura, since it always does two lines per wall.
I created the mesh in Fusion360, where each wall is 0.4mm wide (like my nozzle and line width setting in Cura) and 0.2mm high (like my layer height in cura). I wonder why it always wants to make two lines out of it instead of one? Have I overseen the right setting? I already played around with all the settings shown in the screenshot