how do i do dual endstops for X and Y axis on my cnc

Svenvdb

I am very new to the CNC world. I am making an MPCNC with a duet 2 wifi (latest 3.0 firmware I think). it uses 5 NEMA 17 motors.
X - 2 motors, 2 endstop
Y - 2 motors, 2 endstop
Z - 1 motor, manual zero
I got the motors working with the M564 S0 H0 command.

Problem is when I want to home the X and Y axis. I want to use a dual endstop system so it squares automatically.
I don't have any experience with writing Gcode so i generated a part of the home gcode with the RepRap configurator.
when I press homeX or homeY it only moves the z-axis about 1cm up and down and it says home failed. this is my file to home the X axis. the Y axis it

; homex.g
; called to home the X axis
;
; generated by RepRapFirmware Configuration Tool v3.1.4 on Sat Nov 14 2020 18:37:55 GMT+0100 (Midden-Europese standaardtijd)
M581 X0:3 S-1 T2 C0  ;disable trigger for endstop X
G21  ; set to mm
G91               ; relative positioning
M584 X0 W3 P4  ; seperate Y axis for alingning
G1 H2 Z5 F6000    ; lift Z relative to current position
G1 H1 X-805 F1800 ; move quickly to X axis endstop and stop there (first pass)
G1 H2 X5 F6000    ; go back a few mm
G1 H1 X-805 F360  ; move slowly to X axis endstop once more (second pass)
G1 H2 Z-5 F6000   ; lower Z again
G90               ; absolute positioning
M581 X S1 T2 C0   ; enable trigger for endstop X

I hope some of you can help me.

Veti

@Svenvdb said in how do i do dual endstops for X and Y axis on my cnc:

(latest 3.0 firmware I think)

update to 3.1.1

for dual endstop config see. this works for other axis as well
https://duet3d.dozuki.com/Wiki/Bed_levelling_using_multiple_independent_Z_motors#Section_In_RepRapFirmware_Num_3

dc42

Please post your config.g file.

Svenvdb

@dc42 this is my config file.

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.1.4 on Sat Nov 14 2020 18:37:55 GMT+0100 (Midden-Europese standaardtijd)

; General preferences
G90                            ; send absolute coordinates...
M83                            ; ...but relative extruder moves
M550 P"MPCNC"             ; set printer name

; Network
M552 S1                        ; enable network
M586 P0 S1                     ; enable HTTP
M586 P1 S0                     ; disable FTP
M586 P2 S0                     ; disable Telnet

; Drives
M569 P0 S1                     ; physical drive 0 goes forwards
M569 P1 S1                     ; physical drive 1 goes forwards
M569 P2 S1                     ; physical drive 2 goes forwards
M569 P3 S1                     ; physical drive 3 goes forwards
M569 P4 S1                     ; physical drive 4 goes forwards
M584 X0:3 Y1:4 Z2              ; set drive mapping
M350 X16 Y16 Z16 I1            ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00      ; set steps per mm
M566 X900.00 Y900.00 Z12.00    ; set maximum instantaneous speed changes (mm/min)
M203 X3000.00 Y3000.00 Z180.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00    ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 I30        ; set motor currents (mA) and motor idle factor in per cent
M84 S30                        ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1               ; set axis minima
M208 X800 Y800 Z70 S0          ; set axis maxima

; Endstops
M574 X1 S1 P"xstop+e0stop"            ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop=e1stop"            ; configure active-high endstop for low end on Y via pin ystop

; Z-Probe
M558 P0 H5 F120 T6000          ; disable Z probe but set dive height, probe speed and travel speed
M557 X15:215 Y15:195 S20       ; define mesh grid

; Heaters
M140 H-1                       ; disable heated bed (overrides default heater mapping)

; Fans

; Tools

; Custom settings are not defined

Svenvdb

@Veti i am using 3.1.1 (2020-05-19b2).

Thank you for the link. this is definitely helpful.

Phaedrux

@Svenvdb said in how do i do dual endstops for X and Y axis on my cnc:

"ystop=e1stop"

That should be a + not an =

Veti

also you might want to switch to cnc mode

https://duet3d.dozuki.com/Wiki/Gcode#Section_M453_Select_CNC_Device_Mode

Svenvdb

I fixed it !!. my endstops were on NC, I put a ! in front of it to make it a NO and now it works
I used the normal code for the home command and the M574 in my config.

I found this other forum post from a guy with a similar problem. https://forum.duet3d.com/topic/20318/mpcnc-duet-3-sbc-dual-endstop-for-x-and-y-axes?_=1609092505581

And I read from this link https://duet3d.dozuki.com/Wiki/Bed_levelling_using_multiple_independent_Z_motors#Section_In_RepRapFirmware_Num_3
that @Veti provided that in 3.0 and above you don't have to separate the axis.

Thanks, @Phaedrux for noticing my error in the code, that would probably have taken me a day to figure out.

shante

Hi
Can someone help mi with problem i have?
there is something wrong with my homing Y.
I do homig, steppers are moving, they both hit endstops, move back a bit, but then, only one on my steppers is going to hit endstop (Zstepper is triggers zstop).
Ystepper is not hitting the endstop. LED on mb is not lid.
Board: Duet 2 WiFi (2WiFi)
Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 3.2.2 (2021-02-11)
Duet WiFi Server Version: 1.25

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Sat Feb 20 2021 18:30:24 GMT+0100 (Central European Standard Time)

; General preferences
G90                                     ; send absolute coordinates...
M83                                     ; ...but relative extruder moves
M550 P"Primo"                       ; set printer name

; Network
M552 S1                                 ; enable network
M586 P0 S1                              ; enable HTTP
M586 P1 S0                              ; disable FTP
M586 P2 S0                              ; disable Telnet

; Drives
M569 P0 S0                              ; physical drive 0  X
M569 P1 S1                              ; physical drive 1  Y
M569 P2 S0                              ; physical drive 2  Z
M569 P3 S0								; physical drive 3  E0
M569 P4 S1								; physical drive 4  E1
M569 P5 S1								; physical drive 5 goes forwards
M584 X0:3 Y1:2 Z4 P3						; set drive mapping
M350 X16 Y16 Z16 I1                 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00				; set steps per mm
M566 X900.00 Y900.00 Z60.00				; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z280.00			; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00				; set accelerations (mm/s^2)
M906 X900 Y900 Z900 I30            ; set motor currents (mA) and motor idle factor in per cent
M84 S60                                 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1                        ; set axis minima
M208 X480 Y350 Z200 S0                  ; set axis maxima

; Endstops
M574 X1 S1 P"xstop+e0stop"              ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop+zstop"

; Z-Probe
M558 P0 H5 F120 T6000                   ; disable Z probe but set dive height, probe speed and travel speed
M557 X15:215 Y15:195 S20                ; define mesh grid

; Heaters
M140 H-1                                ; disable heated bed (overrides default heater mapping)

; Fans

; Tools

; Custom settings are not defined

; Miscellaneous
M575 P1 S1 B57600                       ; enable support for PanelDue
M501                                    ; load saved parameters from non-volatile memory

homex.g

; homex.g
; called to home the X axis
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Sat Feb 20 2021 18:30:24 GMT+0100 (Central European Standard Time)
G91               ; relative positioning
G1 H2 Z5 F6000    ; lift Z relative to current position
G1 H1 X-235 F1800 ; move quickly to X axis endstop and stop there (first pass)
G1 H2 X5 F6000    ; go back a few mm
G1 H1 X-235 F360  ; move slowly to X axis endstop once more (second pass)
G1 H2 Z-5 F6000   ; lower Z again
G90               ; absolute positioning

homey.g

; homey.g
; called to home the Y axis
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Sat Feb 20 2021 18:30:24 GMT+0100 (Central European Standard Time)

G91               ; relative positioning
G1 H2 Z5 F6000    ; lift Z relative to current position
G1 H1 Y-235 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 H2 Y5 F6000    ; go back a few mm
G1 H1 Y-235 F360  ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F6000   ; lower Z again
G90               ; absolute positioning

thank you for any help

Phaedrux

@shante said in how do i do dual endstops for X and Y axis on my cnc:

G1 H2 X5 F6000 ; go back a few mm

@shante said in how do i do dual endstops for X and Y axis on my cnc:

G1 H2 Y5 F6000 ; go back a few mm

Remove the H2 on those moves in your homing files. It's ok on the Z axis.

@shante said in how do i do dual endstops for X and Y axis on my cnc:

G1 H1 X-235 F1800 ; move quickly to X axis endstop and stop there (first pass)

@shante said in how do i do dual endstops for X and Y axis on my cnc:

G1 H1 Y-235 F1800 ; move quickly to Y axis endstop and stop there (first pass)

You need to increase the distance of the first homing moves. They must be longer than your axis length.

@shante said in how do i do dual endstops for X and Y axis on my cnc:

M584 X0:3 Y1:2 Z4 P3 ; set drive mapping

Why do you have P3?

shante

@Phaedrux said in how do i do dual endstops for X and Y axis on my cnc:
Ok, removed H2 and increased the distance in both home.g files. Thanks.
But nothing changed, X homing OK, Y does not.

Why do you have P3?

Isn't that P3 to show those 3 axes? To home them and move them?

Phaedrux

@shante said in how do i do dual endstops for X and Y axis on my cnc:

@Phaedrux said in how do i do dual endstops for X and Y axis on my cnc:
Ok, removed H2 and increased the distance in both home.g files. Thanks.
But nothing changed, X homing OK, Y does not.

Why do you have P3?

Isn't that P3 to show those 3 axes? To home them and move them?

You can leave the P3 off entirely. It's mainly used for when you have multiple temporary axis like UVW. You're not doing anything like that since with RRF3 you don't need to split up the axis for homing anymore.

What exactly happens with the Y axis when you do homey?
Does it move in the correct direction towards the endstop?
Does it stop before it hits the endstop?
If you click the endstop by hand while it's moving does it stop the axis?

shante

@Phaedrux said in how do i do dual endstops for X and Y axis on my cnc:

You can leave the P3 off entirely. It's mainly used for when you have multiple temporary axis like UVW. You're not doing anything like that since with RRF3 you don't need to split up the axis for homing anymore.

What exactly happens with the Y axis when you do homey?
Does it move in the correct direction towards the endstop?
Does it stop before it hits the endstop?
If you click the endstop by hand while it's moving does it stop the axis?

P3 removed.
when i try to home Y. Steppers are moving, direction is ok. They both hit endstops, if misaligned stepper that did not hit the unstop is mooving until he does hit endstop. Then they move back together, and together in correct direction moving lowly towards endstops. However only one endstop is triggered and then steppers stops, homig ends as homed.

Phaedrux

@shante Can you send M98 P"config.g" in the console and report the response?

M574 Y1 S1 P"ystop+zstop" Do both endstop LEDs work correctly when you manually click the switch?

shante

@Phaedrux they do, if tested manualy and in first homing pas. After second pas, that slow approach, only one is triggered, Ystop, and Zstop is not. Stepper do not come close to trigger it, its like 0.5mm away.

Phaedrux

@shante Can you send M98 P"config.g" in the console and report the response? Also the results of M122 please.

shante

@Phaedrux
M98 P"config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled
Warning: Macro file config-override.g not found

m122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.2.2 running on Duet WiFi 1.02 or later
Board ID: 08DGM-9T6BU-FG3S4-6J1FL-3SN6S-9SNRH
Used output buffers: 4 of 24 (20 max)
=== RTOS ===
Static ram: 23460
Dynamic ram: 72128 of which 52 recycled
Never used RAM 16440, free system stack 119 words
Tasks: NETWORK(ready,187) HEAT(blocked,366) MAIN(running,543) IDLE(ready,20)
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 00:00:50 ago, cause: software
Last software reset at 2021-02-25 21:13, reason: User, GCodes spinning, available RAM 16408, slot 2
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x00
Aux0 errors 0,0,0
MCU temperature: min 38.0, current 38.4, max 38.6
Supply voltage: min 24.0, current 24.1, max 24.2, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: position 0, standstill, SG min/max 0/109
Driver 1: position 0, standstill, SG min/max not available
Driver 2: position 0, standstill, SG min/max not available
Driver 3: position 0, standstill, SG min/max 0/69
Driver 4: position 0, standstill, SG min/max not available
Driver 5: position 0
Driver 6: position 0
Driver 7: position 0
Driver 8: position 0
Driver 9: position 0
Driver 10: position 0
Driver 11: position 0
Date/time: 2021-02-25 21:14:03
Cache data hit count 60171643
Slowest loop: 8.73ms; fastest: 0.21ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Storage ===
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest read time 3.2ms, write time 1.5ms, max retries 0
=== Move ===
DMs created 83, maxWait 34339ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 10, completed moves 10, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== AuxDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters = -1 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
=== GCodes ===
Segments left: 0
Movement lock held by null
HTTP is idle in state(s) 0
Telnet is idle in state(s) 0
File is idle in state(s) 0
USB is idle in state(s) 0
Aux is idle in state(s) 0
Trigger is idle in state(s) 0
Queue is idle in state(s) 0
LCD is idle in state(s) 0
Daemon is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 201.46ms; fastest: 0.11ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
HTTP sessions: 2 of 8
- WiFi -
Network state is active
WiFi module is connected to access point 
Failed messages: pending 0, notready 0, noresp 1
WiFi firmware version 1.25
WiFi MAC address cc:50:e3:4a:ad:68
WiFi Vcc 3.31, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 25680
WiFi IP address 192.168.1.81
WiFi signal strength -73dBm, mode 802.11n, reconnections 0, sleep mode modem
Clock register 00002002
Socket states: 0 0 0 0 0 0 0 0

M122 sent after homig X and Y

Phaedrux

@shante said in how do i do dual endstops for X and Y axis on my cnc:

when i try to home Y. Steppers are moving, direction is ok. They both hit endstops, if misaligned stepper that did not hit the unstop is mooving until he does hit endstop. Then they move back together, and together in correct direction moving lowly towards endstops. However only one endstop is triggered and then steppers stops, homig ends as homed.

So they are aligning properly on the first pass until both endstops are triggered, but not on the second pass?

Can you make a video showing what's happening?

shante

@Phaedrux

So they are aligning properly on the first pass until both endstops are triggered, but not on the second pass?

Can you make a video showing what's happening?

Yes, exactly.
No video yet, as im rewiring endstop and stepper. Tried replaced endstop, no joy.
New wiring will be with yet another endstop, we will see.

Do i need to split steppers if adding offset to one of steppers will be needed?
If so can you write me example code how to do that?

Phaedrux

@shante Some videos/photos of the setup would help to understand what's going on.