More extrusion multiplier control
I'm assuming we can use this forum for feature suggestions, as well as our own enhancements.
I'm new to this, but it seems like there is a significant need for first layer specific parameters. Currently, there is one extrusion multiplier under the Filament Setting tab. I think it makes sense to have a separate multiplier specifically for the first layer. Currently, if you want to have a filament specific Live Z Axis, you have to change it at the time the filament is changed. It seems like you could achieve the same effect with an extrusion multiplier dedicated to the first layer. That way, you wouldn't have to touch the Live Z Axis, but it would be adjusted automatically with the filament selection.
Re: More extrusion multiplier control
Look at Print settings -> Advanced -> extrusion width
This does the same thing, separate for all layer types
Re: More extrusion multiplier control
That is actually how I deal with it now. The point of my suggestion was really to have it be a function of the filament settings, specifically. I set up my Live Z Axis height using the PLA sample, but I find I need to under extrude a bit when I use the PETG. If it was a function of the filament settings then it would be taken care of just by selecting the filament. I also have a "watertight" custom PETG filament where I boosted the extrusion multiplier by 11% to really squish the lines together, but I actually don't want that to be applied to the first layer. So, I just think it would be convenient if these two parameter could be set independently as a function of selecting the filament.
Re: More extrusion multiplier control
"Look at Print settings -> Advanced -> extrusion width
This does the same thing, separate for all layer types"
Apparently, it doesn't. I just generated some gcode for a small object. Then I changed the first layer extrusion width and generated another. Then I reset that back and changed the extrusion multiplier and generated a third. Then I diff'd the first file against the second and third. The extrusion multiplier does just that; all extruder steps are increased and that is the only change to the file. Changing the first layer extrusion width changes the path and the extruder steps and other parameters that I didn't want to delve into.
This fits with my previous experience where I tried to increase the extrusion width parameters to get more watertight parts, but that actually got less watertight. So I don't know exactly what effect the extrusion width parameters have, but it is not simply increasing the flow rate to get wider lines.