Ender 3 Pro RepRap config.g

dc42

Check that you have the hot end thermistor plugged into the correct connector, the E0_THERM connector. See https://duet3d.dozuki.com/Wiki/Duet_2_Maestro_Wiring_Diagram. If it's definitely in the right connector, it's probably a bad crimp connection or a break in the thermistor cable. You can temporarily plug the bed thermistor wire into E0_THERM to check that the thermistor port is working.

keith

@dc42

. Ok, had a bad crimp. The hotend temp is now working. I have a Duet2Wifi those instructions are for a Maestro, are they the same config wise?

dc42

@keith said in Ender 3 Pro RepRap config.g:

@dc42

. Ok, had a bad crimp. The hotend temp is now working. I have a Duet2Wifi those instructions are for a Maestro, are they the same config wise?

They are almost the same, except for the R value in the M305 command, if you have one. R4700 is correct for the Duet WiFi.

keith

Now I just need to get the BLTouch working properly. It seems to home ok, but the BLTouch alarm comes on every time I home, and the M280 P0 S160 Alarm release isn't working.

dc42

@keith said in Ender 3 Pro RepRap config.g:

M280 P0 S160

That implies that you have the BLTouch connected to the Heater 0 output, which isn't right. Use the same P value in that command that you do in the deployprobe.g and retractprobe.g commands (usually P3 or P7).

I am not an expert on BLTouch, but I think it may help to add parameter R0.2 to your M558 command in config.g.

keith

@dc42

None of that worked.
; retractprobe.g
; called to retract a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v2 on Tue Jul 16 2019 01:25:02 GMT-0600 (Mountain Daylight Time)
M280 P3 S90 I1

dc42

Are saying that M280 P3 S160 doesn't reset the BLTouch error?

Do M401 and M402 commands work (they should deploy and retract the probe)?

Please post your homeall.g and homez.g files.

keith

@dc42
M280 P3 S160 does not reset the BLTouch error.

M401 works M402 retracts but the alarm comes on.
; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2 on Tue Jul 16 2019 01:25:02 GMT-0600 (Mountain Daylight Time)
G91 ; relative positioning
G1 Z5 F6000 S2 ; lift Z relative to current position
G1 S1 X-240 Y-240 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 X5 Y5 F6000 ; go back a few mm
G1 S1 X-240 Y-240 F360 ; move slowly to X and Y axis endstops once more (second pass)
G90 ; absolute positioning
G1 X38 Y20 F6000 ; go to first bed probe point and home Z
G30 ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 S2 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v2 on Tue Jul 16 2019 01:25:03 GMT-0600 (Mountain Daylight Time)
G91 ; relative positioning
G1 Z5 F6000 S2 ; lift Z relative to current position
G90 ; absolute positioning
G1 X38 Y20 F6000 ; go to first probe point
G30 ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 S2 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

Phaedrux

@keith said in Ender 3 Pro RepRap config.g:

M402 retracts but the alarm comes on.

I think you may have a damaged probe, or the pin may be bent. There is a set screw at the top of the probe body that you can remove to get the pin out and check it.

You need the I1 at the end of the command to release the alarm. M280 P3 S160 I1

What happens if you put the probe into self test mode using M280 P3 S120 I1

keith

@phaedrux
All the other BLTouch commands work fine. Self test, retract, deploy, etc... It's just the M280 P3 S160 I1 that doesn't work.

A Former User

Could it be the command actually works but the sensor goes back into alarm straight away? Seems odds only S160 wouldn't work if the probe is working properly.

Phaedrux

Recreate the retract probe file from scratch just to be on the safe side.

When it's doing the self test the probe goes in and out repeatedly no problem?