Homing with Z-max endstop
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@fcwilt okay thank you i will check this
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Post your config.g and homing files along with the results of M122 and M98 P"config.g" if you want more detailed help.
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Can you verify that when you send G1 Z10 it will move the Z axis away from the nozzle?
And G1 Z-10 towards the nozzle?
Is the amount of movement actually 10mm?
I don't see anything wrong with your config file. The homing file should move the Z axis towards Z max.
Can you test the state of the endstops by sending M119? Send it twice, once when the Z endstop is not triggered and again when you are manually triggering it.
Do the LEDs on the mainboard change when the endstop is clicked?
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It's easier on us all if you post your files using the </> tag.
That way we don't all have to download the files.
Here is your homeZ.g file:
; homez.g ; called to home the Z axis ; ; generated by RepRapFirmware Configuration Tool v3.2.3 on Thu Mar 04 2021 17:26:50 GMT+0530 (India Standard Time) G91 ; relative positioning G1 H2 Z5 F6000 ; lift Z relative to current position G1 H1 Z215 F1800 ; move Z up until the endstop is triggered G92 Z210 ; set Z position to axis maximum (you may want to adjust this) ; Uncomment the following lines to lift Z after probing ;G91 ; relative positioning ;G1 Z5 F100 ; lift Z relative to current position ;G90 ; absolute positioningWas that actually created using the configuration tool?
It's a bit messed up.
Frederick
Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6
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@Phaedrux Sure i will reach my office shortly, will tell you the results. regards
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@fcwilt yes from config tool and next time i will upload the files in the mentioned way.
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@adhanabal said in Homing with Z-max endstop:
@fcwilt yes from config tool and next time i will upload the files in the mentioned way.
Thanks.
While the homeZ.g file you post will work it's a bit odd.
A more usual version would look something like this:
G91 ; relative positioning G1 H1 Z215 F1800 ; move Z toward Z max until the endstop is triggered (fast) G1 Z-20 ; backoff a bit G1 H1 Z25 F600 ; move Z toward Z max until the endstop is triggered (slow) G92 Z210 ; set Z position to match actual Z position when endstop was triggeredNotice the G1 H2 command has been removed - it serves no purpose when homing the Z axis.
Now the second G1 H1 is not required but it is common, the idea being that doing a second one at a slower speed will be a bit more accurate.
The G92 is there because the result of the G1 H1 command is to set the Z position (in this case) to the value of Z min or Z max, depending on the location (low or high) of the Z endstop.
Often the endstop triggers at a position somewhat different from Z min or Z max and the actual Z position at which it triggered can be set with the G92.
In this example the Z max value is used even though it may not be exactly correct.
Frederick
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I re-posted your config.g file here.
; Configuration file for Duet WiFi (firmware version 2.03) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.2.3 on Thu Mar 04 2021 17:26:50 GMT+0530 (India Standard Time) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"fabforge v1" ; set printer name ; Network M551 P"fabforge" ; 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 M569 P1 S0 ; physical drive 1 goes forwards M569 P2 S1 ; physical drive 2 goes forwards M569 P3 S1 ; physical drive 3 goes forwards M584 X0 Y1 Z2 E3 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X125.98 Y125.98 Z1600.00 E436.54 ; set steps per mm M566 X900.00 Y900.00 Z60.00 E120.00 ; set maximum instantaneous speed changes (mm/min) M203 X7200.00 Y7200.00 Z600.00 E1200.00 ; set maximum speeds (mm/min) M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2) M906 X1200 Y1200 Z1200 E1000 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 X210 Y210 Z210 S0 ; set axis maxima ; Endstops M574 X1 Y1 Z2 S1 ; set active high endstops ; Z-Probe M558 P0 H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed M557 X15:180 Y15:180 S20 ; define mesh grid ; Heaters M305 P0 T100000 B3950 R4700 ; set thermistor + ADC parameters for heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C M305 P1 T100000 B3950 R4700 ; set thermistor + ADC parameters for heater 1 M143 H1 S280 ; set temperature limit for heater 1 to 280C ; Fans M106 P0 C"Part Fan" S0 I0 F500 H-1 ; set fan 0 name, value, PWM signal inversion and frequency. Thermostatic control is turned off ; Tools M563 P0 S"Head 1" 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 ; Custom settings are not defined ; Miscellaneous M501 ; load saved parameters from non-volatile memory M911 S22 R23 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
