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Center Post Ball Save

Some machines have a mechanical ball save called center post. It pops up between the flippers and prevents the ball from draining.

image

Video about center posts:

To use it in MPF we reuse a diverter. A simple coil_player: would work as well but then we would have to reimplement ball search and service mode logic. The diverter will already implement all that for us.

This is an example:

# in your machine config
coils:
  c_ball_save_post_up:
    number: 1-10  # yours might be different
    default_pulse_ms: 15
  c_ball_save_post_down:
    number: 1-15  # yours might be different
    default_pulse_ms: 15
lights:
  ball_saver:
    number:
diverters:
  ball_save_post:
    activation_coil: c_ball_save_post_up
    deactivation_coil: c_ball_save_post_down
    activate_events: ball_save_post_up
    deactivate_events: ball_save_post_down
    enable_events: ball_started
    type: pulse
##! mode: base
# in base mode
event_player:
  ball_save_default_timer_start:
    - ball_save_post_up
  ball_save_default_disabled:
    - ball_save_post_down
ball_saves:
  default:
    active_time: 10s
    grace_period: 2s
    hurry_up_time: 5s
    enable_events: mode_base_started
    timer_start_events: balldevice_bd_plunger_ball_eject_success
    disable_events: ball_will_end
    auto_launch: true
    balls_to_save: 1
    early_ball_save_events: s_right_outlane_active, s_left_outlane_active
show_player:
  ball_save_default_timer_start:
    ball_save_show:
      action: play
      speed: 5
  ball_save_default_hurry_up:
    ball_save_show:
      action: play
      speed: 10
  ball_save_default_disabled:
    ball_save_show:
      action: stop
shows:
  ball_save_show:
    - time: 0
      lights:
        ball_saver:
          color: black
    - time: '+1'
      lights:
        ball_saver:
          color: red

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