Endstop on second x axis not detected

nevur

Afternoon all,

I have designed and built my own IDEX printer, it has 2 independent X and Z axis.
My V axis which is the second X axis refuses to home, limit switch is configured to NC, the Duet 2 wifi and Duex boards LED indicate when limit switches are compressed.

Any help would be greatly appreciated

; General preferences
G21 ; Work in mm
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"" ; set printer name

; Network
M551 P"" ; set password
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 X
M569 P1 S0 ; physical drive 1 goes Backwards Y
M569 P2 S0 ; physical drive 2 goes Backwards Z
M569 P3 S0 ; physical drive 3 goes Backwards Vx
M569 P4 S1 ; physical drive 4 goes Forwards Uz
M569 P5 S0 ; physical drive 5 goes backwards E0
M569 P6 S0 ; physical drive 7 goes forwards E1

M584 X0 Y1 Z2 V3 U4 E5:6 ; set drive mapping
M350 X16 V16 U16 Y16 Z16 E16:16 I1 ; configure microstepping with interpolation,
M92 X160.00 V160.00 Y160.00 Z800.00 U800.00 E873.08:873.08 ; set steps per mm
M566 X900.00 V900.00 U12.00 Y900.00 Z12.00 E120.00:120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 V6000.00 U360.00 Y6000.00 Z360.00 E1200.00:1200.00 ; set maximum speeds (mm/min)
M201 X500.00 V500.00 U20.00 Y500.00 Z20.00 E250.00:250.00 ; set accelerations (mm/s^2)
M906 X1000 U1000 V1000 Y1000 Z1000 E1000:1000 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 V0 U0 Y0 Z0 S1 ; set axis minima
M208 X210 V210 U210 Y360 Z210 S0 ; set axis maxima

; Endstops
M574 X1 V1 Y1 S0 ; set active low endstops
M574 Z0 U0 S2 ; set endstops controlled by probe

; Z-Probe
M558 P7 H5 F240 T6000 ; set Z probe type to switch and the dive height + speeds
G31 P500 X0 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X15:210 Y15:360 S20 ; define mesh grid

; U-Probe
M558 P7 H5 F240 T6000 ; set U probe type to switch and the dive height + speeds
G31 P500 V0 Y0 U2.5 ; set U probe trigger value, offset and trigger height
M557 V15:210 Y15:360 S20 ; define mesh grid

; Heaters
M305 P0 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M305 P1 T100000 B4725 C7.060000e-8 R4700 ; set thermistor + ADC parameters for heater 1
M143 H1 S260 ; set temperature limit for heater 1 to 260C
M305 P2 T100000 B4725 C7.060000e-8 R4700 ; set thermistor + ADC parameters for heater 2
M143 H2 S260 ; set temperature limit for heater 2 to 260C

; Fans
M106 P0 S0 I0 F500 H-1 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S1 I0 F500 H-1 ; set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P2 S1 I0 F500 H1 T45 ; set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P3 S1 I0 F500 H2 T45 ; set fan 3 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 F0 ; define tool 0
G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C
M563 P1 D1 H2 F1 ; define tool 1
G10 P1 V0 Y0 U0 ; set tool 1 axis offsets
G10 P1 R0 S0 ; set initial tool 1 active and standby temperatures to 0C

; Custom settings are not defined

dc42

Can you confirm that you have the V endstop switch connected to E0stop, and the U endstop switch connected to E1stop ?

Edit: I just spotted this in your config.g:

M574 Z0 U0 S2 ; set endstops controlled by probe

S2 in that line is wrong for both Z and U, unless you really are using the Z probe as the U endstop.

nevur

I can confirm V is in E0, compressing the switch also confirms by LED

Nothing in E1stop

I am currently using z probe for both Z and U

nevur

although the probe says triggered when not compressed and not triggered when I compress it, seems to be backwards

dc42

@nevur said in Endstop on second x axis not detected:

although the probe says triggered when not compressed and not triggered when I compress it, seems to be backwards

then you need to add parameter i1 to your m558 command.

nevur

@dc42

now fixed! I didn't realise drive mapping didnt map end stops and V is E1
now working as intended

thank you