Feat. Req: Option to change Line direction on top and bottom surface

Bambu Lab Software Feature Requests
1

Having the option to make the top/bottom line direction go vertical or horizontal is helpful when trying to get a clean surfaces for flat prints like keychains.

Having the ability to change line direction to 90 or 180 degrees like in Cura instead of having the line direction on top and bottom surface locked to presets would be nice.

4 Likes
Change direction of bottom- / top layer independently
2

You can already do that. Change the Infill direction under the strength tab. Not sure what Cura has, but infill direction does also change top and bottom layer direction.

3 Likes
3

Thanks! I didn’t know it also changes the top and bottom layer direction.

4

It’s April of '24. I’m using both OrcaSlicer v1.9.1, and Bambu Studio Beta v1.9.0.60. I have been using both apps for almost a year (due to different anomalies that exist in both apps (I find that I have to use one or the other to provision workarounds). And, what I describe below I do not know if such existed in previous versions of the apps.

What you have stated is correct, with the strange exception of the 1st layer of the “Bottom shell layers” which appears to be hardcoded to 45˚ of the object’s orientation. E.g., if the object’s orientation is set to 0˚ on the plate, the 1st layer of the “Bottom shell layers” prints at 45˚ relative to the object (and plate), regardless of the “Infill direction” angle setting. And, if the object’s orientation is rotated to 45˚ on the plate, the 1st layer of the “Bottom shell layers” still prints at 45˚ relative to the object (but, of course, now 0˚ relative to the plate).

However, the remaining “Bottom shell layers” do respect the “Infill direction” angle, as do all of the “Top shell layers.” Presumably this is a bug.

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5

Is there a way to prevent the infill direction from changing the top and bottom layer direction? I’m trying to have a honeycomb at 0 degrees and top and bottom layers at 45. Cheers

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Has this topic been closed? If so -
why? Maybe I‘ve overseen something…

I want to set the direction of the buttom and top layer indepently and independent from the object / infill orientation.

2 Likes
7

Here’s how I made bottom layers (and many other things that should be there but aren’t) work.

  • Right click your part > Add modifier (choose the best shape for you).
  • Make the modifer surround the entire base of your part.
  • Lower the height of the modifier to 2x layer thick.
  • Move the modifier so that it is on the bed surface (0.00 in global coordinates looks at the center of the object, so the 2x layer thickness here effectively is working on just 1 layer)
  • In the Object tab, select the modifier, and under its settings, change the infill direction to 0 or 90deg (depending on your part rotation). Inspect the Preview to see if the lines are going how you’d like, and if it’s 90deg off, switch to the other.
    For top layers, do the same, but make a different modifer and move it to the top layer of the part.
2 Likes