Increasing line width on a 0.4 mm nozzle to 0.6 mm

Bambu Lab Software Bambu Studio
1

I have a model where I’ve printed it using a 0.4 mm nozzle and a line width of 0.6 mm instead of the usual 0.42 mm. On my X1 and A1 printers, it printed fine and was about 25% faster. The fatter lines don’t affect the visual quality of the model and it seems just as strong.

But I am a little worried about releasing a print profiles with these settings. Does anyone have experience with the general Bambu printer population using a line width that large on a 0.4 mm nozzle?

2

Bambu recommends that line width should be 75% to 150% of nozzle diameter, so 0.60mm should be OK for a 0.4mm nozzle.

Some claim that you can go as wide as 0.8-1.0mm, but I’ve not tried anything that extreme.

1 Like
3

I would imagine that gets a bit ugly on overhangs especially large percentage ones as it would seem the only way to get greater than 0.4mm is to ‘squish’.

4

The model that I have has overhangs that are inside the part so they aren’t visible but they do suffer from a lot of droop when going to .6

1 Like
5

Well, the speed increase was too tempting and I’m not seeing any issues, at least printing on my machines. Here’s the model I released using it.

Original Print Time:     8 hours 19 minutes
Using 0.28 mm layers:    6 hours 22 minutes
Plus 0.6 mm line width:  4 hours 35 minutes
6

I’m using 0.6 mm line width with the 0.4 nozzle too on nearly all of my prints and I haven’t any problem yet.

1 Like