Simplify3D User Forum

Any idea what is causing this "stratification"? The spacing seems somewhat regular.

It was printed vertical and it was the only thing being printed.

Ultimaker2.

Maybe it's filament inconsistency. If the filament diameter isn't very tightly controlled, the variations can cause extra extrusion.

I've also had a printer where the vibrations caused similar layers like in your picture.

The only thing I can think of is possibly the solid diaphragm infill setting under the "Infill" tab.

KC_703 wrote:The only thing I can think of is possibly the solid diaphragm infill setting under the "Infill" tab.

I wish! That would make sense. Unfortunately that was not turned on. Thanks anyway.

JoeJ wrote:I've also had a printer where the vibrations caused similar layers like in your picture.

I've had similar where a tall thin part was unstable, so I added pinpoint joined "rocket fins" to steady it: The fins were twice filament thickness thick and the scarring from the joiners was minimal.

My option is also filament inconsistency. Bigger the piece the narrower the distance between the lines is what convinced me. One day out of total frustration I loaded the cheapest filament I had that I bought on a whim because it was $10/lb. (HobbyKing brand) and ran the job. The vertical wall was flawless.

A roller dial indicator with pcm output for 'on the fly' adjustment has crossed my mind.

Have you tried the same part with different layer heights? Could be a rounding error where your microsteps don't match the desired Z-height, so every X layers will be lower than the others with the same material extruded.