prusa3d / PrusaSlicer

G-code generator for 3D printers (RepRap, Makerbot, Ultimaker etc.)
https://www.prusa3d.com/prusaslicer/
GNU Affero General Public License v3.0
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Same settings, different models, different speed results #4491

Open gnydick opened 4 years ago

gnydick commented 4 years ago

Version

2.2.0+win64

Operating system type + version

Windows 10 2004

3D printer brand / version + firmware version (if known)

N/A

Behavior

Using the same settings (which will be attached), slicing two different models yields extremely different speed assignments.

With the exception of the first layer speed, the speed settings are all set to 0 with a maximum print speed set. Filament auto-cooling is disabled and volumetric flow isn't a limiting factor

When sliced, the first model (articulated-dish) is almost entirely the max speed. The second model is much, much slower. Can't really figure out why this is.

Slicing them both together yields slower speed for the first model, which makes no sense why it would be different than sliced alone.

Project File (.3MF) where problem occurs

files.zip

rtyr commented 4 years ago

I don't recommend using the autospeed feature (inherited from upstream Slic3r). It doesn't always work realiably and it is probably still considered as "experimental" feature. We may remove this feature in the future.

gnydick commented 4 years ago

Please don't remove this!?!?! I have a very fast printer that can print at high quality at speed. It is much more convenient to give it a max speed and let the other settings alter it.

Really, why is it so difficult to have individual speed settings per feature type and have auto cooling and volumetric rate override them vs. having a default speed that fills in the other boxes and does the same thing?

On Mon, Jul 6, 2020, 10:35 AM Gabe E. Nydick notifications@github.com wrote:

Version

2.2.0+win64 Operating system type + version

Windows 10 2004 3D printer brand / version + firmware version (if known)

N/A Behavior

Using the same settings (which will be attached), slicing two different models yields extremely different speed assignments.

With the exception of the first layer speed, the speed settings are all set to 0 with a maximum print speed set. Filament auto-cooling is disabled and volumetric flow isn't a limiting factor

When sliced, the first model (articulated-dish) is almost entirely the max speed. The second model is much, much slower. Can't really figure out why this is.

Slicing them both together yields slower speed for the first model. Project File (.3MF) where problem occurs

files.zip https://github.com/prusa3d/PrusaSlicer/files/4880413/files.zip

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VanessaE commented 4 years ago

NO, DO NOT REMOVE!

Some hotends work better with autospeed. If it has problems, FIX them.