diff --git a/machine.cfg b/machine.cfg
index 0a288a6..0b190d6 100644
--- a/machine.cfg
+++ b/machine.cfg
@@ -88,7 +88,7 @@ stealthchop_threshold: 500
 ## Z Stepper
 [stepper_z]
 step_pin: Z_STEP
-dir_pin: Z_DIR
+dir_pin: !Z_DIR
 enable_pin: !Z_ENABLE
 
 # 2mm (GT2-6mm) Belt
@@ -156,7 +156,7 @@ uart_pin: RX
 tx_pin: TX
 uart_address: 3
 interpolate: True
-run_current: 0.3
+run_current: 0.3        # OMC 14HR07-1004VRN (1A max, 9Ncm) 
 hold_current: 0.2
 sense_resistor: 0.110
 stealthchop_threshold: 500