IG2

Thank you very much! I will definitely have a deeper look into better ways / software to do the tings I need!

Thank you very much for your answers. I ment that its hard to modify those fixed models if I need to change something. But you made me realised that my workflow seems to be the Problem. I create and edit the model in Sketchup 3D (which id the only 3D Software I am used to right now), save it as an STL and edit it as needed. So when I wanted to edit the fixed stl files with all those triangles it was like a nightmare. It seems like I should have a separate 3D Model (non STL) which I edit and only export an STL File when I want to feed it to Cura. Regarding those two images at the bottom, the simple one (2 faces) is the one STL Model I had created, while the one with dozens of faces is the one MS 3D Builder made out of it while fixing.

Sorry for reactivating this post but I would like to ask some questions regarding this as well. First, I am very new to working with 3D models and english is not ma native language, so please bear with me if I don´t understand something the first time or my questions seems stupid. Now for my Questions: I created a kinda simple Object which had some Error I did not understand but 3DBuilder and the online repair both seemed to have worked. In the Screenshot is my "clean" model on the right and the new "fixed" model on the left. 1) Why did those programs add so many "useless" lines into my model? 2) How am I supposed to work with this new model when i have to modify dozens of lines/planes for just a simple change? Edit: OK, I guess most of this is to create triangles. But why does a rectangle, which only has straight lines need this instead of this?

Whatever you did, the UI in 5.0 doesn´t seem to work well. Although everything takes more space (which I personally don´t like but OK) the Text scaling seems buged. Win 11, 4k Screen at 150% scaling. Here just a few examples: