Jagged/Black edge artifacts when modeling I don´t know if this is a bug only to me or a common problem, for I don´t know why it occurs.

I had a problem once before where some edges of my model got jagged with black holes when switching to rendered mode (or actual rendering). Answers I got said that I modeled in too much detail or too small, and used the combination Subdiv Modifier/Auto Smooth/sharp edges wrong.

Now I have a way more problematic thing. I have a really simple scene, but most of the edges have this annoying jagged problem. I build this model in a higher scale (since the last one was too small).

I used the Subdiv Modifier/Auto Smooth/sharp edges again, but if I toggle on/off the Subdiv Modifier/Auto Smooth/sharp edges/seams, shade smooth/flat, won´t help at all. These artifacts just keep showing.

Does anyone know why this occurs?

Shaded Flat and zoomed in for a better look on the artifact.





My hardware specs are


GPU: Asus M5A78L-M LX3
GPU: NVidia GTX 750 StormX OC
CPU: AMD FX6300 @ 3,5 GHz
8 GB RAM
Windows 7 Professional 64-bit
Reduce your Clipping Distance for both the viewport and/or camera.

You have it set to $0.1$ - $10`000$ while you work at around a scale of $1$.

If you reduce the Clipping Distance to something reasonable like $100$, the artifacts disappear.

Clipping distances are used to calculate the Z depth buffer, which is the scene depth information, since it is limited to the available grey scale values of an image stretch across the whole depth of what is displayed, if the values are too far apart there is not enough precision left to represent minute details.

Always keep these values as close as possible to comfortably work, and with a magnitude matching your scene unit scales.