Gyroid infill with, it´s impossible to change ...

[ChiliApple]

Version

1.41.0 Beta+

Operating system type + version

Mac OS 10.13.6

Behavior

• since 2-4 Versions it´s impossible to change the infill with on gyroid, works only on the other infill´s

thx, best Udo

[supermerill]

Yeah, it's because it's using "bridge" flow in slic3rPE.
You can't change the bridge width...
note: it's the same with the speed, it use the bridge speed.

One quick solution if it's problematic for you:

• removing the line 17 in FillGyroid.hpp and recompile.
• using an other slic3r like the main one or my fork

Note: it should be the same for the 3D honeycomb.

[bubnikv]

The issue here is, the gyroid infill as of now is printed with a bridging flow, so it does not respect the infill extrusion line width.

…

On Thu, Aug 9, 2018 at 10:37 AM, Merill ***@***.***> wrote: How do you "change the width" ? with the parameter in advanced->infill? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#1131 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AFj5I6qtuGQroi5Sp6S4pEvdhpiosU0wks5uO_TlgaJpZM4V0MKH> .

[KD7LRJ]

The "Combine infill every:" option also seems to cause problems with gyroid infill if it's set to something other than 1.

[bubnikv]

@supermerill

Yeah, it's because it's using "bridge" flow in slic3rPE.

Wasn't this your initial implementation? Does the non-bridging flow produce sufficient overlaps?

[supermerill]

Wasn't this your initial implementation?

Yes, it was in my initial implementation, as I used 3DHoneycomb as a baseline.
Month later, i removed it because it create more problems than it resolve (and there are no real problem in the first place).

Does the non-bridging flow produce sufficient overlaps?

Yes. (line section result below are with 0.9 bridging reduction & 0.4 line width)
At 0.35mm, it increase it from 0.13mm² to 0.15mm². (not-bridged extrude more than bridged)
At 0.2 mm, it reduce the section from 0.13 to 0.09 (I print almost only at 0.2 lh and I have no problem without bridging flow).
At 0.05mm, the bridge flow completely destroy the infill (because there are no space for it).

Imho, you should also remove the bridge_flow from 3D honeycomb.
edit: you can increase the flow by ~30-40% in the infill generator if you want to keep the same flow when using "bridge" (with a limit to not over-extrude with high infill ratio) instead of a real bridge flow.

note: I wanted to use the dont_connect to let user say "don't connect the lines, i want to create an art piece" but I have to create a new gui button for that. I think i will clean the fill api & create some more gui option for it in the future.

[bubnikv]

The bridging flow was disabled for Gyroid infill with b429b39
The fix will be in 1.41.1 final.
Closing.