# Here you can get all your rod lengths for i3 right.
-If you are using single plate model, use *numbers*
+If you are using single plate model, use *italic numbers*.
"Default box" is made of 6 450mm boards and one that is 2 * board thickness longer, see http://78.47.92.212/i3_documentation_pics/06-frame.md.html
## Y axis
## X axis
You need 2 smooth rods
-### X axis smooth rod is sum of:
- * workarea (200mm)
- * x carriage width (85mm for box carriage, 58mm for single plate)
- * 90 mm inside X end parts
- * for dualhead extruders, distance between hotends (70 for two extruders on box carriage)
-For 376mm minimum with box model carriage. Its also box width minus 3 cm, so at least *370* for single plate, 450 for default box. May be longer.
+### X axis smooth rod
+is box/plate width plus 25mm, so *395* for single plate, 475 default box. May be longer.
+
+Working area will be at most box width - 170 for single extruder and box width - 270 for dual extruder
## Z axis
You need 2 smooth rods and 2 M5 threaded rods