RepRap X2V3

RepRap X2V3 is the new generation of the RepRap X2 dual extruding 3D printers line. Hardware features:
- Support independently moving X axis carriages for 2 extruders;
- Nozzle wiping/cleaning;
- Frame modifications allowing X stage to move higher;
- Printing area casing.
Firmware features:
- Dual X or Y drive machines support;
- Support for simultaneous duplicate or mirror printing;
- Filament compression compensation (experimental);
- Various new and existent command