I'll setup M143 to add the over temp monitoring to both sensors. That will add some level of extra protection. During my setup and testing I can confirm that when the sensors are disconnected the readings go up to 2000.
Fault detection if the sensors get too far apart would still be a nice feature to have but it's not a blocker.
Finally fixed it!
The missing command was setting the Z endstop to the Z probe with M574 Z1 S2
I'll setup M143 to add the over temp monitoring to both sensors. That will add some level of extra protection. During my setup and testing I can confirm that when the sensors are disconnected the readings go up to 2000.
Fault detection if the sensors get too far apart would still be a nice feature to have but it's not a blocker.
I have gotten both sensors to show up in the web ui by assigning the extra sensor to heater 2 (no actual heater) and then add both heaters to the tool definition.
M305 P1 X200
M305 P2 X201
M563 P0 D0 H1:2 F2
This way I can see if something looks wrong but I would also like to add config to automatically shutdown if there is too much of a difference.
I have two PT100 temperature sensors connected to the PT100 daughter board. They both seem to work individually but I'm looking for some way to setup fault detection if the readings get too far apart. Is there a way to setup redundant temperature sensors?
Finally fixed it!
The missing command was setting the Z endstop to the Z probe with M574 Z1 S2
@redwagon said in One endstop for multiple axes:
M574 X1 S2
For future reference you must also map the Z endstop back to the Z probe with m74 Z1 S2
I ran through those tests and still get the same results. I have to manually move the printer within 5mm of the Z probe triggering or it will give the error "Z probe was not triggered during probing move"
config.g
M555 P2 ; Set output to look like Marlin
G21 ; Work in millimetres
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
; No bed heater
M140 H-1
; Disable Fan 1 thermostatic mode
M106 P1 H-1
; Axis and motor configuration
M569 P0 S0 ; Drive 0 goes forwards
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S0 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards
M558 P4 I1 ; use E0 endstop as Z probe
M574 X1 S2 ; bind X homing switch to Z probe
M574 Y0 ; radius homing switch present, no turntable homing switch
M669 K7 R0:150 H0.3 F30 A30 ; set Polar kinematics parameters
M666 X0 Y0 Z0 ; put your endstop adjustments here, or let auto calibration find them
M350 X16 Y16 Z16 E16:16 I1 ; Set 16x microstepping with interpolation
M92 X80 Y80 Z3200 ; Set axis steps/mm
M906 X1000 Y1000 Z1000 E800 I60 ; Set motor currents (mA) and increase idle current to 60%
M201 X1000 Y1000 Z100 E1000 ; Accelerations (mm/s^2)
M203 X6000 Y6000 Z100 E3600 ; maximum linear speeds mm/minute
M566 X1200 Y1200 Z1200 E1200 ; Maximum instant speed changes mm/minute
; Thermistors
M305 P1 T100000 B3974 R4700 H30 L0 ; Put your own H and/or L values here to set first nozzle thermistor ADC correction
M570 S180 ; Hot end may be a little slow to heat up so allow it 180 seconds
; Fans
M106 P1 S-1 ; disable thermostatic mode for fan 1
; Tool definitions
M563 P0 D0 H1 ; Define tool 0
G10 P0 S0 R0 ; Set tool 0 operating and standby temperatures
M92 E80:80 ; Set extruder steps per mm
;*** If you are using axis compensation, put the figures in the following command
M556 S78 X0 Y0 Z0 ; Axis compensation here
M208 Z-0.2:200 ; set axis travel limits
T0 ; select first hot end
homeall.g
; Home All
G91 ; relative movement
G1 Z4 F100 H1; ensure head is clear of the bed
G1 S1 X-200 F3000 ; move radius towards minimum until the endstop switch is triggered
G1 S2 X5 ; move radius out by 5mm
G1 S1 X-20 F600 H1; move radius slowly to the endstop switch again
; Home Bed
G90 ; absolute movement
G1 S2 X10 ; move to 10mm from centre of bed
G92 X10 Y0 ; define current position as X10 Y0
; Home Z
; G1 X0 Y0 ; put head over the centre of the bed, or wherever you want to probe
G30 ; lower head, stop when probe triggered and set Z to trigger height
homebed.g
G91 ; relative movement
G1 Z4 F100 H1 ; ensure head is clear of the bed
G90 ; absolute movement
G1 S2 X0 ; move to centre of bed
G92 X0 Y0 ; define current position as X0 Y0
G91 ; relative movement
G1 Z-4 F100 H1; restore original Z position
homedelta.g
; Example Homing file for RepRapFirmware on delta printer
;M117 Use https://configurator.reprapfirmware.org/ to set up your printer config
;G91 ; use relative positioning
;******* Change F250 in the following line to F2500 when you are finished commissioning
;******* Change 320 in the following to a higher value if your Kossel has taller towers
;G1 S1 X320 Y320 Z320 F2500 ; move all carriages up 320mm, stopping at the endstops
;G1 S2 X-3 Y-3 Z-3 ; move all carriages down 3mm
;G1 S1 X6 Y6 Z6 F250 ; move carriages slowly up 6mm, stopping at the endstops
;G1 Z-5 F2000 ; down a few mm so that we can centre the head
;G90 ; back to absolute positioning
;G1 X0 Y0 F2000 ; centre the head and set a reasonable feed rate
homeradius.g
G91 ; relative movement
G1 Z4 F100 H1; ensure head is clear of the bed
G1 S1 X-200 F3000 ; move radius towards minimum until the endstop switch is triggered
G1 S2 X5 ; move radius out by 5mm
G1 S1 X-20 F600 ; move radius slowly to the endstop switch again
G1 Z-4 F100 H1; restore original Z position
homez.g
G91 ; relative movement
G1 Z4 F200 H1; raise head 4mm to ensure it is above the Z probe trigger height
G90 ; back to absolute mode
;G1 X0 Y0 ; put head over the centre of the bed, or wherever you want to probe
G30 ; lower head, stop when probe triggered and set Z to trigger height
I've adjusted the Z steps/mm and lowered speed and acceleration. No changes; G30 by itself still lowers 10mm and throws the "Z probe was not triggered during probing move" error.
It's off by a little bit; right now it's travelling 8mm per 10mm. Shouldn't be enough for it to run through the max axis settings and not trigger the probe. I tested by doing a G92 Z0 then moving it around manually.
Sorry, I commented out the default ones but the probe is defined earlier with:
M558 P4 I1
I've tried several combinations of the suggestions above but they all do the same thing.
G20
G30 Z-99999
G30 Z-200
M208 Z200
G30
G30 Z-99999
G30 Z-200
M208 S1 Z-200
G30
G30 Z-9999
M208 Z0:200
G30
G30 Z-999999
M208 Z-200:200sG30 Z-9999
G30
G30 Z-99999
I measured and it dives for 10mm then returns to its original height.
From reading the docs it doesn't really sound like I should be doing a large dive for G30. Do I need to run G28 first with the endstop assigned to Z probe?