Thank you for you replay.
It is really interesting resolution of the problem and a good result.

Thnank you very much.

So, i didn't tried yet your advice, but tried all the above solutions and ended in an unsuccessful result. I assume the major problem is the spheric shape if the outer and inner walls. If the shape would be a flat wall I assume it would be more flexible. The spheric wall is more rigid and can withst...

Ok.
Thank you.
I really appreciate your help.

I'm also ising a nozzle 0.2mm and a print high of 0.2mm.
Do you think I should maybe switch to a nozzle like 0.4mm and a higher layer high like 0.3 or higher?

By "tilted at a 45 degree angle using supports" you mean I should tilt the part in the slicer 45 degree?
Like in the picture ?
I don't care about the nice, fancy surface, I care more about the functionality.

Friend's thank you very much for your time and help, I did it almost perfect. I'm very happy. :-) I have another question related maybe to my construction, but probably not a theme for this forum, but maybe somebody can help me to solve it. I have to print on my 3D printer this part, I use PETG fila...

Hi! I have a broken plastic part which I have to recreate in FreeCAD and print on a 3D printer. It is a simple tube which is 15mm height and a wall thickness of 1mm an inner diameter of 14mm, nothing special. But I have a thread on the inner side of the tube. The real thread has a pitch of 1.75mm an...

Thank you for this info.

I will wait with the update.
I don't really need it.

Hi! I wish to update my FreeCAD to the newest. I have installed some plugins etc. Do I need to backup my plugins, settings etc. before updating FreeCAD? If yes, how? Thank you. OS: Windows 10 build 18363 Word size of FreeCAD: 64-bit Version: 0.21.1.33668 +26 (Git) Build type: Release Branch: (HEAD d...

WooooooW!
How crazy is that mate!?
I'm rotating and spinning...
You made my day happy!
Thank you bro!