> 未分类 > [FluidNC Issue#1438] Problem: The cycle returns home, infinitely.

[FluidNC Issue#1438] Problem: The cycle returns home, infinitely.

未分类 bolang 4个月前 (10-14) 33次浏览

Issue #1438 | 状态: 已关闭 | 作者: kotovasia5120 | 创建时间: 2025-01-26

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FluidNC Limit Switch and Homing Setup

Controller Board

esp32 dev board connected to Woodpecker GRBL 0.9j

Machine Description

cnc3018

Input Circuits

100 ohm resistor in series with NC switch

Configuration file

board: custom
name: cnc/laser 3018
meta: 
stepping:
  engine: RMT
  idle_ms: 255
  pulse_us: 4
  dirdelayus: 0
  disabledelayus: 0
  segments: 12
spi:
  misopin: NOPIN
  mosipin: NOPIN
  sckpin: NOPIN
sdcard:
  cspin: NOPIN
  carddetectpin: NO_PIN
  frequency_hz: 8000000
kinematics:
  Cartesian:
axes:
  sharedstepperdisable_pin: gpio.2
  sharedstepperresetpin: NOPIN
  homing_runs: 2
  x:
    stepspermm: 800.000000
    maxratemmpermin: 1000.000000
    accelerationmmper_sec2: 25.000000
    maxtravelmm: 2950.000000
    soft_limits: true
    motor0:
      limitnegpin: gpio.33
      limitpospin: NO_PIN
      limitallpin: NO_PIN
      hard_limits: false
      pulloff_mm: 3.000000
      stepstick:
        step_pin: gpio.18
        direction_pin: gpio.17
        disablepin: NOPIN
        ms1_pin: gpio.19:high
        ms2pin: NOPIN
        ms3pin: NOPIN
        resetpin: NOPIN  
    homing:
      cycle: 2
      allowsingleaxis: true
      positive_direction: false
      mpos_mm: 0.000
      seekmmper_min: 200
      feedmmper_min: 50
      seek_scaler: 1.1
      feed_scaler: 1.5 
      settle_ms: 250
  y:
    stepspermm: 800.000000
    maxratemmpermin: 1000.000000
    accelerationmmper_sec2: 25.000000
    maxtravelmm: 1000.000000
    soft_limits: false
    motor0:
      limitnegpin: NO_PIN
      limitpospin: NO_PIN
      limitallpin: NO_PIN
      hard_limits: false
      pulloff_mm: 1.000000
      stepstick:
        step_pin: gpio.0
        direction_pin: gpio.5
        disablepin: NOPIN
        ms1pin: NOPIN
        ms2pin: NOPIN
        ms3pin: NOPIN
        resetpin: NOPIN  
  z:
    stepspermm: 800.000000
    maxratemmpermin: 1000.000000
    accelerationmmper_sec2: 25.000000
    maxtravelmm: 1000.000000
    soft_limits: false
    motor0:
      limitnegpin: NO_PIN
      limitpospin: NO_PIN
      limitallpin: NO_PIN
      hard_limits: false
      pulloff_mm: 1.000000
      stepstick:
        step_pin: gpio.16
        direction_pin: gpio.4
        disablepin: NOPIN
        ms1pin: NOPIN
        ms2pin: NOPIN
        ms3pin: NOPIN
        resetpin: NOPIN  
pwm:
  pwm_hz: 5000
  directionpin: NOPIN
  output_pin: gpio.15
  enablepin: NOPIN
  disablewiths0: false
  s0withdisable: true
  spinup_ms: 300
  spindown_ms: 0
  tool_num: 0
  speed_map: 0=0.000% 10000=100.000%
  offonalarm: false  
  

control:
  safetydoorpin: NO_PIN
  resetpin: NOPIN
  feedholdpin: NO_PIN
  cyclestartpin: NO_PIN
  macro0pin: NOPIN
  macro1pin: NOPIN
  macro2pin: NOPIN
  macro3pin: NOPIN
  faultpin: NOPIN
  estoppin: NOPIN
coolant:
  floodpin: NOPIN
  mistpin: NOPIN
  delay_ms: 0
probe:
  pin: NO_PIN
  toolsetterpin: NOPIN
  checkmodestart: true
  hard_stop: false
macros:
  startup_line0:
  startup_line1:
  Macro0:
  Macro1:
  Macro2:
  Macro3:
  after_homing:
  after_reset:
  after_unlock:
start:
  must_home: false
  deactivate_parking: false
  check_limits: true
parking:
  enable: false
  axis: Z
  targetmposmm: -5.000000
  ratemmper_min: 800.000000
  pulloutdistancemm: 5.000000
  pulloutratemmpermin: 250.000000
user_outputs:
  analog0pin: NOPIN
  analog1pin: NOPIN
  analog2pin: NOPIN
  analog3pin: NOPIN
  analog0_hz: 5000
  analog1_hz: 5000
  analog2_hz: 5000
  analog3_hz: 5000
  digital0pin: NOPIN
  digital1pin: NOPIN
  digital2pin: NOPIN
  digital3pin: NOPIN
  digital4pin: NOPIN
  digital5pin: NOPIN
  digital6pin: NOPIN
  digital7pin: NOPIN
user_inputs:
  analog0pin: NOPIN
  analog1pin: NOPIN
  analog2pin: NOPIN
  analog3pin: NOPIN
  digital0pin: NOPIN
  digital1pin: NOPIN
  digital2pin: NOPIN
  digital3pin: NOPIN
  digital4pin: NOPIN
  digital5pin: NOPIN
  digital6pin: NOPIN
  digital7pin: NOPIN
arctolerancemm: 0.002000
junctiondeviationmm: 0.010000
verbose_errors: true
report_inches: false
enableparkingoverride_control: false
uselinenumbers: true
planner_blocks: 16

Startup Messages

[MSG:INFO: Restarting]
[MSG:INFO: WiFi Disconnected]
WebSocket disconnect 0
[MSG:INFO: uart_channel0 created]
[MSG:RST]
[MSG:INFO: FluidNC v3.9.4 https://github.com/bdring/FluidNC]
[MSG:INFO: Compiled with ESP32 SDK:v4.4.7-dirty]
[MSG:INFO: Local filesystem type is littlefs]
[MSG:INFO: Configuration file:config.yaml]
[MSG:INFO: Machine cnc/laser 3018]
[MSG:INFO: Board custom]
[MSG:INFO: Stepping:RMT Pulse:4us Dsbl Delay:0us Dir Delay:0us Idle Delay:255ms]
[MSG:INFO: Axis count 3]
[MSG:INFO: Shared stepper disable gpio.2]
[MSG:INFO: Axis X (0.000,2950.000)]
[MSG:INFO:   Motor0]
[MSG:INFO:     stepstick Step:gpio.18 Dir:gpio.17 Disable:NO_PIN]
[MSG:INFO:  X Neg Limit gpio.33]
[MSG:INFO: Axis Y (-1000.000,0.000)]
[MSG:INFO:   Motor0]
[MSG:INFO:     stepstick Step:gpio.0 Dir:gpio.5 Disable:NO_PIN]
[MSG:INFO: Axis Z (-1000.000,0.000)]
[MSG:INFO:   Motor0]
[MSG:INFO:     stepstick Step:gpio.16 Dir:gpio.4 Disable:NO_PIN]
[MSG:INFO: Kinematic system: Cartesian]
[MSG:INFO: Connecting to STA SSID:kotovasia_chup]
[MSG:INFO: Connecting.]
[MSG:INFO: Connecting..]
[MSG:INFO: Connected - IP is 192.168.1.113]
[MSG:INFO: WiFi on]
[MSG:INFO: Start mDNS with hostname:http://fluidnc.local/]
[MSG:INFO: HTTP started on port 80]
[MSG:INFO: Telnet started on port 23]
[MSG:INFO: PWM Spindle Ena:NOPIN Out:gpio.15 Dir:NOPIN Freq:5000Hz Period:8191]
Grbl 3.9 [FluidNC v3.9.4 (wifi) '$' for help]

User Interface Software

WebUI

What happened?

When returning to the x-axis, it returns home to the switch at high speed, stops, but does not roll back to measure at low speed. The cycle returns home, infinitely.
Connections:
100 ohm resistor in series with the trip switch.

GCode File

No response

Other Information

No response

评论 (6)

#1 – kotovasia5120 于 2025-01-26

At the moment only one limit switch is installed
could this be the problem?

#2 – MitchBradley 于 2025-01-26

We are unable to offer support for custom controller boards. It requires too much of our time, with no return, benefiting only one person.

#3 – bdring 于 2025-01-26

There is a flowchart for switch setup on the wiki. Follow it and report back with yourcresults.

#4 – kotovasia5120 于 2025-01-26

Thanks for the answer. Wiki is not always easy to navigate. I did not see this page.
As a result, I saw in the debug that when the limit switch was triggered, it was triggered not once, but many times per second.
It was necessary to enable :pu for the contact since the limit switch is NC.

> There is a flowchart for switch setup on the wiki. Follow it and report back with yourcresults.

#5 – MitchBradley 于 2025-01-26

If you have ideas for how the wiki navigation could be better, please request wiki edit permission and improve it.

#6 – bdring 于 2025-01-26

It is in the navbar on the left side. It is the first page suggested if you search for homing and second page suggested if you search for limit switches.

I added a link in the FAQ.

原始Issue: https://github.com/bdring/FluidNC/issues/1438

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