Relation in Cura between supports and Nozzle diameter

[ignatius 20]

Hi!

That´s a question about an issue I am having with Cura.

The thing is that I must print again a piece that I already printed few months ago. When I printed it, I only had a 0.4mm Nozzle, but now I have a 0.8 and I want to use it because the print time is shorter.

While I uploaded the file to Cura and change the settings to a 0.8 Nozzle, I realize that depending of the Nozzle diameter, Cura changes the supports. I was wondering if it is a software bug, because I don´t have a clue why Cura does it.

Supports 0.4 Nozzle - Layer 1

Supports 0.8 Nozzle - Layer 1

Supports 0.4 Nozzle - Complete

Supports 0.8 Nozzle - Complete

Thanks!!

Edited March 29, 2016 by Guest

[gr5 1,071]

"it's a bug not a feature". Um. Well it's a feature that you can't control this independently.

Cura has an invisible setting called "line width" which is controlled by a combination of nozzle size and shell width. If (as you should always do) you set the shell width to a multiple of nozzle width then line width will be equal to nozzle width.

All traces - brim/shell/infill/support - everything - is drawn at "line width". It would be nice to have the support be a different line width but there's no way to do that.

So now by default the grid is at 15% fill amount - so with thicker lines the lines are farther apart. If you want the grid lines closer together try 30%.

Also you can reduce the amount of brim lines by half since your nozzle is twice as thick.

[nallath 582]

This is why the new Cura has a "infill line width"

[gr5 1,071]

ignatius you can try the "new cura" beta if you want. Send me a private message and I'll send you a link. I've sliced and printed a few objects with it and it seems to work pretty well. There are still some bugs but I don't think you will notice them.