how much misinformation and plain wrong "engineering statements" in one thread that it hurts ... I understand when this type of talk was happening back 10 years ago but today, 10 years into home printing, slicers... too bad I still have to use old and painfully slow skeinforge as it creates better output then many modern slicers.. including s3d ..
I know the math is not simple but it is
not impossible ..
Take this simple example, 0.8mm 8 year old nozzle jammed into crappy rapman extruder prints PP reliably 0.1mm to 1.2mm wide wall in "single go" .. so if you thin wall is 0.1mm it will print it and it will be 0.1mm, if your wall is 0.3mm it will print it again in single go, no need to make 3 0.1mm lines to do it (and definitely don't need to vibrate the hack out of the printer to do it) same for 0.32mm or 0.51mm or 1.15mm or 1.2mm .. each of them
can be printed in one single line .. and it is so sad that 10 years into the technology we are still hearing (yelling, in all caps) how it's impossible, you need 0.00001mm nozzle and 5 years to print some super simple part with few thin walls .. yes, math is not simple but cmon...
now the same 0.8mm nozzle that prints PP from 0.1 to 1.2mm can't do the same with for e.g. ABS, there the from-to is much narrower so it goes from 0.4/0.5mm to 1.0/1.1mm depending on the batch of abs and layer height ... the from-to depend a lot from nozzle geometry (a big flat nozzle top will allow you for more width, a narrow sharp nozzle tip won't allow for anything wider then the tip point itself), from the material you are printing (you can't stretch ABS nearly as much as you can stretch PP, I can print PP with 0.05mm wall width but it's not reliable but that's from 0.8mm nozzle, from 0.35mm you can get crazy results.. PLA hugely depends on the manufacturers, I used PLA that can stretch almost like PP without snapping, and I used PLA that can't go below 80% of the nozzle width before snapping... HDPE, natural vs colored - huge difference... )
So yes, it can be done, yes there should be FROM-TO parameters instead of single "width" and yes the software should vary the width of extruded string in order to ideally fill the thin features ... and yes, it is not easy but saying it is impossible is spitting on last 10 years of reprap project

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