How to do custom nozzle temperatures to improve surface finish

Bambu Lab X1 Series User mods
1

How to do custom nozzle tTemperature to improve surface finish

Using ocra slicer 1.6.3

You set the layer height changes by using mm in the G-code and putting the nozzle temperature.

Start by using the right slide bar tool to find the mm you want to change to a new nozzle value on your part.

You can help eliminate matte finishes or other reasons you need more temperature control for your part.

  • Speed changes
  • Shell thickness
  • Infill %
  • Top surface
  • Overhangs

Matte Speed Sample:
Speed Matte Surface
This PLA part went from overhang speed 80 mm/s to outer wall speeds 172 mm/s and had a matte finish
Post link highrise955 posted about the problem and this is why we now have this community solution. Lets hope they add a slicer nozzle temperature control to the right side toolbar slider :slight_smile:

G-code Speed 2
G-code Speed 2892×671 40.7 KB

Speeds on this sample part.

G-code Temp 1
G-code Temp 1936×726 46.9 KB

Ok I added more PLA temperature controls just to show what you can do.

Sample
Sample1106×949 99.4 KB

Let’s find the mm to change the nozzle temperature again. I picked 60.04 mm and I wanted the nozzle at 220 c so it will show green on the temperature preview when we move the slide up.

G-code settings 1A
G-code settings 1A917×870 93.7 KB

The G-code location and you can turn it on or off as needed, add or remove the G-code.

You can see I disabled ;{if layer_z>=100.00} M104 S220{endif} this extra setting is not needed on this part you just add the ; in the front of text.

The other option is save it as a custom printer setting your choice.

Happy 3D Printing :grinning:

4 Likes
2

Are there any other ways to modify how the printer behaviors in the Machine Start G Code?

3

Hi,

Ya in the new version of Bambu Studio and Orca Slicer you can now do it this way also.
.

Slice the part then move the right slider for the layer you want the temperature change for the bed or nozzle to happen then right click the (+) to add “custom gcode.

.
M140 S40 ;Sample this is the gcode to change the bed temp to 40c if was @ 70c

M104 S245 ;Sample this is the gcode to change the nozzle temp to 245c if was @ 255c
.

This way you can keep your speed high or you can always slow the outer wall speed down by using a height range modifier.
.

Sometimes you might want to drop the bed temp down when part is printed so much depending on the filament that is being used and part design.
.

Hope this helps you out with your project :v:

2 Likes