GT2 Belt tension adjustement

Proper belt tension is quite important and therefore here is the method I used for my Geeetech Al Prusa I3. The method is quite simple mainly because the Geetech quite surprisingly uses a properly designed idler pulley and adjustment system for X and Y (I replaced the not recommended smooth pulleys by toothed ones).

Here the pulley is held in a U shaped part with one screw in line with the belt used to hold and adjust it.

The method applies to similar designs. Note that it is quite surp