Hi,
With PETG in particular, if I have any first layer with meticulous detail (on my Wanhao i3 V2), what will often happen is during printing the walls, the plastic will stick to the nozzle on a travel move and remove all or some of the previous printed wall from the build-plate. It will also stick to the nozzle and gum up and future walls, so if this happens once, it generally ruins the entire print.
However, if I pay attention and it doesn't happen too badly (with PLA mostly), I can clip off the nerds of curled up filament and try and "baby" the print through until its done with the walls and it starts moving to the infill. What sometimes happens is there ends up being no walls left on the first layer (because I removed them all) and the first layer fill starts. This prints wonderfully, and the print continues just fine.
So for PETG, in order to achieve this level of first-layer detail, I NEED to disable the walls. The only way I can do that in Cura right now is set the wall width to 0. This disables the walls for the ENTIRE print, so in order to properly fill out the model, I have to move to a very high fill ratio (95+ or more). This is far from ideal.
So I have a simple feature request: The option to disable walls for first-layer only. This setting will also remove the bottom layer fill offset so it will expand to fill the area that would normally be occupied by walls.
Thank you for reading. This feature would be so helpful for me.