diff --git a/config/example-delta.cfg b/config/example-delta.cfg
index 96ab91b3..1eb96b3c 100644
--- a/config/example-delta.cfg
+++ b/config/example-delta.cfg
@@ -9,8 +9,7 @@
 
 # The stepper_a section describes the stepper controlling the front
 # left tower (at 210 degrees). This section also controls the homing
-# parameters (homing_speed, homing_retract_dist) and maximum tower
-# length (position_max) for all towers.
+# parameters (homing_speed, homing_retract_dist) for all towers.
 [stepper_a]
 step_pin: ar54
 dir_pin: ar55
@@ -19,7 +18,6 @@ step_distance: .01
 endstop_pin: ^ar2
 homing_speed: 50.0
 position_endstop: 297.05
-position_max: 297.55
 
 # The stepper_b section describes the stepper controlling the front
 # right tower (at 330 degrees)
diff --git a/klippy/delta.py b/klippy/delta.py
index 914783eb..d73e5b8f 100644
--- a/klippy/delta.py
+++ b/klippy/delta.py
@@ -25,7 +25,7 @@ class DeltaKinematics:
         self.max_xy2 = min(radius, arm_length - radius)**2
         self.limit_xy2 = -1.
         tower_height_at_zeros = math.sqrt(self.arm_length2 - radius**2)
-        self.max_z = self.steppers[0].position_max
+        self.max_z = max([s.position_endstop for s in self.steppers])
         self.limit_z = self.max_z - (arm_length - tower_height_at_zeros)
         logging.info(
             "Delta max build height %.2fmm (radius tapered above %.2fmm)" % (
@@ -101,10 +101,10 @@ class DeltaKinematics:
     def home(self, homing_state):
         # All axes are homed simultaneously
         homing_state.set_axes([0, 1, 2])
-        s = self.steppers[0] # Assume homing parameters same for all steppers
+        s = self.steppers[0] # Assume homing speed same for all steppers
         self.need_home = False
         # Initial homing
-        homepos = [0., 0., s.position_endstop, None]
+        homepos = [0., 0., self.max_z, None]
         coord = list(homepos)
         coord[2] = -1.5 * math.sqrt(self.arm_length2-self.max_xy2)
         homing_state.home(list(coord), homepos, self.steppers, s.homing_speed)