Problem: Laser firing on G0 moves about fluidnc HOT 5 CLOSED

I think enable stays on until M5. The output should be off during G0

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ah ok, might be my misunderstanding then, so the enable pin stays on, but the PWM output should drop to zero? I'll double check tomorrow, but I think the tube is staying powered, (or at least I can see the plasma in it). Is this the use case for DisableWithS0? I can try that too. Thanks!

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Have you tried disable_with_s0: true ?

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here are my settings on the same board and everything works fine for me

`board: MKS TinyBee V1
name: TinyBee corexy
meta: (17.01.2024) by Skorpi

#$config/filename=TinyBee.yaml $ESP115 =ON

kinematics:
corexy:

stepping:
engine: I2S_STREAM
idle_ms: 250
pulse_us: 4
dir_delay_us: 1
disable_delay_us: 0

axes:
x:
# X
steps_per_mm: 80.000
max_rate_mm_per_min: 12000.000
acceleration_mm_per_sec2: 6000.000
max_travel_mm: 350.000
soft_limits: true
homing:
cycle: 2
allow_single_axis: true
positive_direction: false
mpos_mm: -3.000
feed_mm_per_min: 200.000
seek_mm_per_min: 4000.000
settle_ms: 250
seek_scaler: 1000.100
feed_scaler: 3.100

motor0:
  limit_pos_pin: gpio.33:low
  hard_limits: true
  pulloff_mm: 3.000
  stepstick:
    step_pin: I2SO.1
    direction_pin: I2SO.2
    disable_pin: I2SO.0

y:
# Y
steps_per_mm: 80.000
max_rate_mm_per_min: 12000.000
acceleration_mm_per_sec2: 6000.000
max_travel_mm: 350.000
soft_limits: true
homing:
cycle: 3
allow_single_axis: true
positive_direction: false
mpos_mm: 0.000
feed_mm_per_min: 200.000
seek_mm_per_min: 4000.000
settle_ms: 500
seek_scaler: 1000.100
feed_scaler: 3.100

motor0:
  limit_pos_pin: gpio.32:low
  hard_limits: true
  pulloff_mm: 3.000
  stepstick:
    step_pin: I2SO.4
    direction_pin: I2SO.5
    disable_pin: I2SO.3

z:
# Z
steps_per_mm: 930.000
max_rate_mm_per_min: 1200.000
acceleration_mm_per_sec2: 300.000
max_travel_mm: 260.000
soft_limits: false
homing:
cycle: 0
positive_direction: true

motor0:
  hard_limits: false
  stepstick:
    step_pin: I2SO.7
    direction_pin: I2SO.8
    disable_pin: I2SO.6

i2so:
bck_pin: gpio.25
data_pin: gpio.27
ws_pin: gpio.26

spi:
miso_pin: gpio.19
mosi_pin: gpio.23
sck_pin: gpio.18

sdcard:
cs_pin: gpio.5
frequency_hz: 1000000

coolant:
flood_pin: gpio.17
mist_pin: I2SO.20
delay_ms: 0

Laser:
pwm_hz: 5000
output_pin: gpio.13
#enable_pin: I2SO.20
#direction_pin: NO_PIN
disable_with_s0: false
s0_with_disable: true
speed_map: 0=0.000% 1000=100.000%
off_on_alarm: true

start:
must_home: false
`

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disable_with_s0: true is the fix! thanks all. On the off chance that it helps someone else, the tube staying energised was because the little control panel which comes with the laser PSU overrides the PWM signal, which is a bit annoying.

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