Dynamic (calculated) line widths not treated correctly by other fields.

[tlhintoq]

Is there an existing issue for this problem?

• I have searched the existing issues

OrcaSlicer Version

2.1 nightly 22may2024

Operating System (OS)

Windows

OS Version

Win10x64pro

Additional system information

Core i9 11th gen
64gig ram
Nvidia

Printer

Any/all

How to reproduce

Set nozzle diameter - 0.6 in this case
Set a dynamic default line width so the same profile works on a .4 machine as well as a .6 machine. In this example 150%.
Set other lines widths to 0 so they automatically inherit the line width from Default line width. In this example that makes them all 0.8
Tree supports: Set tip diameter to 0.8mm

Actual results

All the math works out that everything is 0.8 in this example. Yet you can't slice this because of error
Organic support tree tip diameter must not be smaller than support material extrusion width.

NOTE: Calculated line widths are also broken if you paint the object with different materials/colors. Basically the calculated width feature which would be awesome is dramatically crippled to the point of not being usable by other elements/features of Orca.

Expected results

The flow of the math, the order of operations carried out, should calculate that all the inherited line widths are 0.8 and therefore this error should not arise.

Project file & Debug log uploads

No project file required as this is reproducable from the instructions above.

Checklist of files to include

• Log file
• Project file

Anything else?

[tlhintoq]

And just to confirm its a math problem...
Change the 150% to 0.8 and the error goes away - even though the result should be the same.

[tlhintoq]

Latest 2.1 RC still doesn't address the use of % line widths. Its such a great option that I would love to be able to use it.
Its especially nice when you have machines with different nozzle sizes installed. Great to just set a profile with 150% for example.
But you can't use these dynamic values if you do anything beyond the ultra basics of Orca.
Paint the object - Breaks
Dynamic layer height - breaks

CC: @SoftFever

[SoftFever]

@tlhintoq Can you attach a sample project?

[tlhintoq]

DoubleBinV5.zip

[tlhintoq]

Wait... It may not be the use of % but instead the computed value.
If I hard code the top layer line width to .24 I get the same error.
I can go as low as .28 and its acceptable and slices.

[tlhintoq]

If you get a chance... Can you shed some light on Flow::with_spacing() ?
I'd like to have more of a true understanding of where this is coming in to play so I can be smarter about some of problems.
Is there some flow spacing or other spacing value this is interacting with and that's where the conflict arises? Or just a hard value that says: "Can't go smaller than 70% of the nozzle width"... something like that?