I haven’t played much with max volumetric speed settings at all. I’m more about quality over speed, especially with small sized functional prints.
Question: Does changing the max volumetric speed affect the filament change process?
As I said in Reasons to use cool plate or engineering plate? I get clogged 0.2 nozzles mainly when changing filament types.
The worst is going from PLA to ASA. The temperature the firmware uses when loading ASA is high enough to semi-crystalize PLA and cause the nozzle to clog.
I have one 0.2 nozzle sitting around that is permanently clogged from going from PLA to ASA. I try unclogging it with various methods every-now-and-then, but I think it’s it lost cause.
I now have a habit of sitting in front of the printer when changing to ASA (I use this a lot) and listening for “clicks” of the extruder teeth skipping on the filament. As soon as I hear that I stop the print and start a series of “cold pulls” to clean out the nozzle.
Sometimes I get forgetful and just let it print and the filament starts to get stripped, and I pay the price. Prints fail, ASA gets stripped off and stuck in the filament sensor and the teeth in the extruder just clogged with ASA (they look almost smooth). So, I end up pulling everything apart and cleaning things out (I’ve gotten really good at that too).
But sometimes the filament changeover is fine. Go figure. Another thing I’ve noticed that all is well, when the printer is purging the ASA over the waste shoot the filament streams straight down. If it starts curling in circles either up/down or round and round it’s time to clean out the nozzle.
I use Bambu filament on all my prints (love the refillable spools, just wished they offered it on ALL their types of filaments in the USA). I also wish that there was a way to manufacture CF infused filament that is compatible with a 0.2 nozzle.
But I have to admit, this printer does AMAZING small prints with the 0.2 nozzle. I came from an Ender 3 S1 Pro and the difference is night and day for quality and ease of use (minus what I said above).