Inner/outer/inner with 2 walls starts with outer instead of inner wall

[tlhintoq]

Is there an existing issue for this problem?

• I have searched the existing issues

OrcaSlicer Version

2.3-dev

Operating System (OS)

Windows

OS Version

Win10proX64

Additional system information

Printer

Any

How to reproduce

1. New job
2. Add a cube
3. 2 walls
4. inner/outer/inner order
5. slice

Actual results

Outer wall prints before inner

Expected results

Inner/outer/inner
if there's no 3rd wall then still should be
Inner/outer/...

Project file & Debug log uploads

Checklist of files to include

• Log file
• Project file

Anything else?

No response

[discip]

@tlhintoq
If you are using the latest dev build this might be related to #7951 and if so will be fixed with the merge of #7959. 😊

[tlhintoq]

@tlhintoq If you are using the latest dev build this might be related to #7951 and if so will be fixed with the merge of #7959. 😊

Except I don't use the Arachne engine (due to the problems in it like that one).
As seen in the screen capture this is with Classic Wall Generator

[discip]

Ups. 😅
Sorry, I missed that crucial detail. 🤦‍♂️

[buzzhuzz]

Sorry my ignorance, but how inner/outer/inner supposed to work with only 2 perimeters?

I've just looked into the feature tooltip and it is clearly says "this feature required minimum of 3 walls to be effictive..."

[MxBrnr]

I would argue this is working exactly as intended. The whole purpose of inner/outer/inner wall order is so that the outer wall is printed before the immediately adjacent inner wall. In the case of a 2 wall print, you are simply eliminating the first inner wall, effectively changing this setting to outer/inner. As previously mentioned and detailed in the tooltip, inner/outer/inner only works with 3 or more walls.

[tlhintoq]

to be effictive...

'Effective' is not the same as work in sequence as described. It may not be as effective with only 2 walls but it should still follow the same sequence.

@MxBrnr That's one way to look at it.

The other is... Its called inner/outer/inner.
That's the order it should print in.
1 - inner
2 - outer
3 - inner

The whole purpose of inner/outer/inner wall order is so that the outer wall is printed before the immediately adjacent inner wall.
One interpretation.

The other is:
"The inner wall should print before the outer so there is something for the outer wall to stick to on slopes/overhangs."

Here's the common workflow...
I'm debating between 2 walls and three... Wall order of (1)inner/(2)outer/(3)inner
I slice it at 3... And I get an inner wall before the outer wall. "Ok, I like that. But I don't need 3 for this object."
So I reduce it from 3 walls to 2. That should be all that needs to be done, and I should still get the (1)inner wall before the (2)outer wall because there is no (3)inner l to make

[henrivdr]

I agree 100% with @tlhintoq