I do have issues with my printer or slicer settings. I am getting a concave gap [attachment 121084 concave.jpg] mostly at the same position and I don´t know how to remove it [attachment 121080 DSC00339_.jpg] the foto looks worse because of the light. my only concern is the gap (red arrwows) the filament is a petg and my slicer is Prusa 2.6. ( I have to use this 2, so orca slicer .... is not an option) my guess is the transition from perimeter with infill to only perimeter lines [attachment 121082 2024-09-0313_07.png] [attachment 121083 2024-09-0313_08.png] I will give a reward of 30 US Dollar with pay pal to whoom solves the problem gcode link to file [drive.google.com] https://reprap.org/forum/read.php?262,895707,895707#msg-895707 Mon, 12 Oct 2026 23:17:35 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?262,895707,895722#msg-895722 https://reprap.org/forum/read.php?262,895707,895722#msg-895722
but the concave gap is indipendend of the object position

z axis is a t8 lead screw. printer is homebrew, corexy, duet board, revo roto printhead.]]> BaumannRenfert Printing Fri, 06 Sep 2024 06:15:00 -0400 https://reprap.org/forum/read.php?262,895707,895721#msg-895721 https://reprap.org/forum/read.php?262,895707,895721#msg-895721
Another possibility is that the extruder carriage is shifting - does the concavity go all the way around the print, or does it appear on one side with an overhang on the other side?

What is the printer? What sort of Z axis drive does it have (belt, screw?), what is print layer thickness?

If you make multiple prints- one at a time, do they all come out with the same grooves in the z axis? If you make multiple prints at the same time do they all look the same or are they different?]]> the_digital_dentist Printing Thu, 05 Sep 2024 16:35:43 -0400 https://reprap.org/forum/read.php?262,895707,895707#msg-895707 https://reprap.org/forum/read.php?262,895707,895707#msg-895707 [attachment 121084 concave.jpg]
mostly at the same position and I don´t know how to remove it
[attachment 121080 DSC00339_.jpg]
the foto looks worse because of the light. my only concern is the gap (red arrwows)

the filament is a petg and my slicer is Prusa 2.6. ( I have to use this 2, so orca slicer .... is not an option)

my guess is the transition from perimeter with infill to only perimeter lines
[attachment 121082 2024-09-0313_07.png]
[attachment 121083 2024-09-0313_08.png]

I will give a reward of 30 US Dollar with pay pal to whoom solves the problem

gcode link to file
[drive.google.com]]]> BaumannRenfert Printing Tue, 03 Sep 2024 07:28:55 -0400