[SOLVED] Fixing a failed print with the missing layers

[Feuille 0]

Hi everyone :),

 

It's the fourth time I'm printing a huge piece... The first three times failed because my spool was not unrolling correctly so I've printed a better spool holder and it's working fine.

Sadly, this morning I've noticed it failed... AT THE END OF THE PRINT, because the solder of my heating bed broke ! Omg that was really frustrating.

 

But ! Because of the Gyroid infill pattern, I've figured out exactly where it stopped, I know the number of the layer (n°413) where it stopped, so I had an idea : could I manage to print only the layers that are above this particular layer ?

 

Here's a picture of what I want to print in Cura, I just need those layers and then I'll glue them to the other print.

But I don't think there is an option to print that part of the model in Cura.

Some people suggested in other topics to modify the same Gcode and delete all the layers I don't want, but that's pain in the a**, I don't think gcode files give a number to each layers. And even if it was possible, it would print in mid air (or I could change the z axis coordinates to be on the plate.. but again, that looks so difficult)

I could also cut the model in a 3D software but it wouldn't be as precise as the slicer, and I'll loose the exact same infill pattern.

 

Do you have any ideas ? Thanks !

Edited May 18, 2020 by Feuille

[Feuille 0]

OMG ! I think I'm on something !

 

I've opened the orginal Gcode and to see each layer, I've used "CTRL+F" and typed "Z", so I could see the layer change !

I went to the end of the Gcode and counted 26 layers descending the file. Then I've copied this part of the Gcode and pasted it in another tab.

I've also copy/paste the beginning of the gcode, and here's the result 🙂

 

BUT ! As you can see and I've mentioned it earlier : it's in mid-air, and there's not way to put it on the plate with the mouse or keyboard...

I think I'm going to have to modify each Z coordinates to match the first layers....

 

I'll let you know if I succeed !

[Feuille 0]

YES !! YES !!!

 

I've modified all the missing layers by changing the z axis coordinates to match as if it was printed from the beginning : 0.26, 0.46, 0.66.... etc

 

AND IT WORKS ! It's annoying but it works !

[Feuille 0]

Here's a snapshot from below, see the exact same pattern ? 🙂

[obewan 37]

dont forget to set the extruder value to the last Exxxxx from the previous layer otherwise you will extrude a heck of a lot of fillament

 

use G92 Exxxxx  at the start of your new code

 

[Feuille 0]

Thank you, I've just printed it and the only problem I've got is that the extruder motor was vibrating at some point just before starting the print. Then it stopped and started the print fine.

 

Here's the result in picture :

 

Edited May 18, 2020 by Feuille