I think the X1C and P1P are not easy to compare with other printers because of their potential high print speed.
While other printers save time by printing fewer perimeters or layers, the Bambu Lab printers can simply go faster to achieve the same flow with a smaller nozzle.
For example, using a 0,6mm nozzle on my Prusa MK3 made a way bigger improvement in print time compared to my X1C.
So I think you will see the biggest improvement when using high flow filaments.
I would also expect to see faster prints with small objects, because with a bigger nozzle and the greater layer height, you can print faster when the minimum layer time kicks in, right?
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I am currently using just the 0.4mm X1C print nozzle, because the print quality is so damn good on the X1C that I don’t want to risk messing with it. As a new user, I couldn’t be happier. Has anyone here tried using the 0.6mm or 0.8mm nozzles on either the X1 or P1P, and, if so, how are you liking them?
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The profile for 0.6 is too restrictive. Here’s a comparison of a large print I did with a 0.6 nozzle and 100% filled with walls, in half the time that was estimated for a 0.4 nozzle with 3 walls and 15% infill. When you go to the 0.6 nozzle, change your filament setting to a higher flow rate to correspond to the less restrictive nozzle. For example I changed my 0.6 profile from 10 to 15 mm3/s for the silk PLA I was using.
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from prior testing on other printers, with comparatively inferior extruders and hotends, I knew I could run that filament at 15-20 mm3/s with a 0.6 nozzle. I decided to just try 15 and the print came out perfectly. Do your own testing though:
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I also just saw this post, same concept
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As near as I can tell, the one factor that most affects the MVS is the particular hotend being used:
I don’t know the name for the X1C hotend. Is it something custom? Or is it on this list?
The X1C uses a custom hotend, it is not included in this list.
I’m not finding it on their website now but I think Bambu was stating 33 mm3/s with their hotend using ABS.
Just for comparison, with a V6 hotend I was able to get like 10-13 mm3/s with a standard 0.4 nozzle and 15-20 with a 0.6 nozzle. I got around 28 mm3/s with an AliExpress 0.6 CHT nozzle on a V6
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Great info. Very cool.
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PC shows max speed 120mm/s, will a 0.8mm nozzle double speed compared to 0.4?
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Got maximum of 35mm³/s with an oiginal CHT nozzle 0.4mmn , the heater is the bottlneck, it cant sustain more than 215/220° with this flow, but someone on another thread have tried with two heater and seems it worked (he just wired them in parralele).
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Flow and Layer Height.
Tall bulky objects benefit greatly from large layer heights. 0.4 nozzles start to fall apart above 0.28mm layer height. bigger nozzle, bigger layer height ratios keep working. 0.8 can pull off 0.6 layer height easily.
ALSO some filaments are speed limited so you can get a ton more flow given the same speeds if layer lines don’t bother you.
Its really only a concern if you want to push out lots of chunky parts.
also fiber filaments often plug up 0.4 nozzles.
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I’m still not understanding the difference between going 0.8 to 0.6. Bambu recommended 0.6 to me. I was getting ready to order 0.8
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Also consider the nozzle size is disproportional to print precision; the larger the nozzle diameter, the less precise the print in the x-y plane. Fitted features will be effected.
-Uman
my prints for most part dont need precision, i wish there was a way to specify precision in 1-2 spots but not sure how
Using 0.6 or 0.8 nozzle will have few benefit using bambulab original nozzles, you.may be interrested in upgrading to a better nozzle (CHT clones)
Have a look to this thread : First Benchy printed with Bambulab X1 & CHT Nozzle
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Reduce the outer perimeter bead width to
Improve precision with a larger nozzle.
Cheers
-Uman
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well that are several reasons and factors…
but for example.
.4 nozzle base line is .2mm first layer and .2mm for layers after using .2mm setting
.6 nozzle base line is .3mm first layer and .3mm for layers after using .3mm setting
.8 nozzle base line is .4mm first layer and .4mm for layers after using .4mm setting
larger nozzle will print faster but you do lose detail, so on certain things speed may be something you want over appearance… there is a little more to it but that is the main reason to do so
also some types of filament and prints it a benefit to print with thicker layer…lot of variables.
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While it is true on most printers, the speed improvement on Bambu Lab printer is not that much using 0.6 nozzle and 0.4 layer height, due to its limitation in flow rate. Yes it can print 0.4 layers with 0.6mm nozzle, but it will print it so slowly that the overall print will not be a lot faster.
I think Bambulab have been thinked to print fast and well with 0.4mm and that they did not really study bigger nozzles (It is clear when you compare the number of profile for 0.4mm nozzle and the number of profile for 0.6mm nozzle).
The only way, I found to really get advantage of a 0.6 nozzle is to use a nozzle with a higher flowrate (AKA CHT nozzle).
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