Poor Quality Print on Corners and sharp shapes

[dchristie1a]

Printer Model

Voron 2.4 350x350

Extruder Type

Other

Cooling Type

Afterburner

I finished a 2.4 350mm build awhile ago, but then had other matters come up that stopped me from completing the tuning. I have now returned to the project and spent significant time trying to tune the printer for acceptable prints and have run out of ideas. I could really use the help of this group.

I am trying to print a basic 2mm cube as a first step. The first layer is great, and the top is reasonable, but the the cubes pulls in on all for corners in between and the print quality is horrible at the 90 degree corners. I have tried printing at 235, 240,245, and 250 degree temperatures (bed at 100, or 110) without any fundamental different to quality. I have changed Jerk settings from 10mm to 7mm, to 5mm without a significant difference, I have changed acceleration from 9000 to 700, to 500 without change. I even incresed the infil percentage to see if that made a difference, but it didn't. I have the full details of the machine below. I could really use advice on this. It will likely be something obvious that I missed, and I will feel really stupid.

(See images attached below)

Machine Build: Voron 2.4 350x350
Hotend: Mosquito Magnum
Controller boards: BTT Octopus v1.1 w/ TMC2209 v1.2 drivers and a RPi v4B
Klipper v0.12.0-451
MainSail v2.13.2
Object sliced with SuperSlicer 4.8

Print Parameters (latest):
Head Temp: 250 degrees
Bed Temp: 110 degrees
Speed: 60 mm (have tried 50mm, 80 mm, and 100 mm)
Jerk setting: 5mm (have tried 7mm and 10 mm)
Accel: 500 mm/s (have tried 700mm/s and default 9000mm/s)

So far all changed produce the same defects in the print. See image.

 

[argusz]

If you print with PLA filament your print temps are waaaay high. Bed temp sould be 60 and extruder temp 190-210 degree. And part cooling fan 100%.

 

[dchristie1a]

If you print with PLA filament your print temps are waaaay high. Bed temp sould be 60 and extruder temp 190-210 degree. And part cooling fan 100%.

I am printing with ABS, not PLA (thus the high temps).

 

[NoGuru]

I cannot stress enough that you should go through every aspect of this tuning guide. If the printer is sound, it will dial you in. https://ellis3dp.com/Print-Tuning-Guide/?mwg_rnd=5137715

That being said, I feel like you have a mechanical issue. I have never seen a print that bad on a Voron. Make sure your gantry is not wobbly or loose somewhere.

 

[lord-carlos]

> SuperSlicer 4.8

I don't think that exists. 2.5 is the latest AFAIK.

Can we see a screenshot slices object with print speed and flow view?

As NoGuru said, make sure the printer works mechanical. This is a really odd print.
And maybe start with PLA as well.