What setting slows this infill down

Been trying to print a Wades small gear 100% infill with PETG, and because it's such a small part I need to keep the temp down, but this means I also need to slow the extrusion. I've slowed down everything in the slic3r speed settings to under 20 mm/s, but when the print gets to the teeth of the gear, for some reason it does not slow down on the solid infill of the teeth. It jerks around, and the only way to slow it down is to lower the Feed Rate on the marlin lcd.

This video shows the super speed infill that is already reduced 20% feed rate on the lcd:
[vid.me]

What Slic3r setting causes (or can slow down) this super-speed infill at 0:30 ?

Jeez! What does the part look like after it does that?

Something is wrong with your gcode file- that isn't caused by a slicer setting, unless you told it to use 2000% extrusion width for the infill (print settings>advanced>infill or solid infill).

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Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]

Yes it is solid infill. But I use solid on other things and it works normal. Even the base of this small gear is solid and is normal. It's just in the teeth of the gear that it speeds up.

I think you need to reslice it. There's definitely a problem with the gcode there. Slic3r can be flaky sometimes. Try Cura.

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Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]

Max Volumetric Extrusion.

That fixed everything. A setting of 5 seems max for printing the small gear, although it was pushing it; will try 4 next. No other speed setting would slow it down. And I'm trying to not use other slicers (I bought S3D too).

I know what volumetric extrusion is and use it all the time. What is "max" volumetric extrusion?

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Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]

Sorry I meant Max Volumetric Speed.

I have slic3r 1.2.9 and can't find any reference to "max volumetric speed". What version of slic3r are you using?

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Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]

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Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
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