In Bambu Studio is there any way to specify the speed of print on the first layer on top of a support interface?
I particularly would like this as I am using PLA as interface material but printing PETG. Laying the PLA interface down is good as interface speed can be set. But, obviously, because PETG does not adhere to PLA, it does not like to sit onto the interface very well and I am thinking slowing this right down might help.
If I understand you correctly, you want to do this for the support interface layer.
There is no direct way of doing this via the support menu. There is a section in the speed menu which allows you to change the speed for overhangs. But you are at the mercy of the algorithm in that the algorithm must decide if something is an overhang.
It can also be done with G-code but it ain’t pretty.
Slice your model and in the preview, slide the layer slider to the layer you want to manipulate. Right click to bring up the customer Gcode menu.
Then use the bottom slider to slide to the left which will move the Gcode to the beginning of the layer. You will actually see an animation of the nozzle movement letting you know when the Gcode position is in the right location.
Enter the command: G1 F50 ; Set speed for this layer (50 mm/min)
Note that this will change the speed for that entire layer and may introduce and undesirable 'visual" line due to the filament cooling at a different rate.
Thank you for taking the time to write that, Olias.
Been struggling to get my PETG to stick to the PLA support interface and seems that I’ve narrowed it down to Bambu Studio treating the first layer that goes ON TOP OF the Support Interface as a Bridge. So you likely want to lower your bridge speed in order to fix this as I lowered my Support Interface speed and it did not change. Lowered my Bridge speed and it seems to be finally updating in the preview to match.
