Update axes.md

docs/hardware/axes.md

@@ -13,7 +13,7 @@
 | **X-Axis Motor**: 42-34 Nema17, 1.8°, 200 steps, 5mm shaft with 16 teeth pulley (5mm bore) attached (for 6mm wide belt) (--> need to check specs again!) |
 | **Y-Axis Motor**: 42-48 Nema17, 1.8°, 200 steps, 5mm shaft with 16 teeth pulley (5mm bore, 11mm teeth length) attached (for 8mm wide belt) (--> need to check specs again!) |
 | **Z-Axis Lead Screws**: T8x8 (8mm diameter, 8mm lead, 2mm pitch, 4 starts), 500-505(??)mm length, 10mm and ~23mm unthreaded 5mm OD shaft, belt-driven dual z  |
-| **Z-Axis Timing Belt**: GT-2, 6mm width, closed loop, length ???mm |
+| **Z-Axis Timing Belt**: GT-2, 6mm width, closed loop, length 810mm |
 | **Z-Axis Lead Screw Pulleys**: 20(??) teeth (5mm bore) (for 6mm wide belt) (--> need to check specs again!) |
 | **Z-Axis Anti-Backlash Nut**: POM, spring loaded, 8mm inner diameter, 20mm distance between mounting screws (18mm will fit as well due to elongated holes at the bracket!) |
 | **Z-Axis V-Slot Wheels**: POM, ~24x10.2mm with 6mm width at the tip of the "V", 625 type ball bearing with 5mm inner diameter |
@@ -892,7 +892,7 @@ The following picture shows the unthreaded part at the bottom which is 10mm long
 ---
 
 ### Timing Belt  
-The two lead screws are connected by a closed loop GT-2 timing belt (6mm width, ??mm length).    
+The two lead screws are connected by a closed loop GT-2 timing belt (6mm width, 810mm length).    
 
 ![Timing belt](../assets/images/axes_K2Pro_timing-belt_web.jpg)