Maestro To WiFi v1.04 SD files

NoSkillzEngineer

So I'm connected to my WiFi and X and Y both home correctly.

The BL Touch does not deploy so it will inevitably crash if I let it.

Question:

; Duet Wifi v1.04
; deployprobe.g
; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v2 on Wed Feb 13 2019 21:37:53 GMT-0500 (Eastern Standard Time)
M280 P8 S10 I1

Where should I connect the BL Touch and what should my M280 command be, what pin should I be connected to, and how does the M307 relate to the BL Touch for remapping?

; BLTouch config updated-02.13.2019
M574 Z1 S2 ; Set endstops controlled by probe
M307 H3 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch
M558 P9 H5 F120 T6000 ; Set Z probe type to bltouch and the dive height + speeds
G31 P500 X0 Y0 Z2.5 ; Set Z probe trigger value, offset and trigger height
M557 X35:220 Y35:220 S20 ; Define mesh grid

The probe does it's little power-on self-test it does with the board turns on, but I get

Error: M280: Invalid servo index 8 in M280 command

Error: M280: Invalid servo index 3 in M280 command

Error: M280: Invalid servo index 2 in M280 command

If I try to change the pin number in the M280 command and send M401 (deploy probe) manually.

The red wire, which should be 5v is connected to pin 1, the brown which should be GND is connected to pin 2 and the Orange which should be the signal or servo wire is connected to pin 8 which should be Heater 3 right? What am I doing wrong?? Running the latest firmware.

For the record, I have gone through the documentation and the forum linked in the documentation and it's hard for me to discern which applies to my application. I've read through

https://duet3d.dozuki.com/Wiki/Using_servos_and_controlling_unused_IO_pins

G-Code wiki on M280 and M307, the wiki on BL Touch and it feels like I'm missing a deeper understanding of the connection between these. I don't understand what I'm doing wrong.

dc42

If you have connected the servo control wire to the heater 3 pin on the expansion connector, you need to use P3 in the M280 commands, not P8. You also need to use M307 H3 A-1 C-1 D-1 in config.g to disable heater 3. It's all covered at https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe#Section_BLTouch.

NoSkillzEngineer

@dc42

M280 P3 S10 I1

M307 H3 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch

And Orange physically connected to pin 3 or pin 8 and it still gives me

Error: M280: Invalid servo index 3 in M280 command

Is this line correct?

M558 P9 H5 F120 T6000 ; Set Z probe type to bltouch and the dive height + speeds

I thought this configuration was correct. I do not understand what I'm doing wrong.

Phaedrux

Check this out: https://forum.duet3d.com/topic/7325/finally-got-the-bltouch-working-on-the-maestro/2

NoSkillzEngineer

@phaedrux Yeah, no, I got the BL Touch working on the Maestro, but now I'm on the WiFi and I do not understand why I can't get it working on the WiFi.

Phaedrux

@noskillzengineer Sorry. Brain malfunction.

Do you have a config-override.g? It's possible that your M037 H3 A-1 C-1 D-1 is being overwritten.

NoSkillzEngineer

@phaedrux why yes, I do. I'll try putting that in the override file.

Phaedrux

@noskillzengineer You can add a ; to comment out any existing M307 in there.

NoSkillzEngineer

@phaedrux

[;M307 H3 A340.0 C140.0 D5.5 S1.00 V0.0 B0]

M307 H3 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch

Apparently I was overwriting my M307 command.

Commented out that line and for good measure added M307 H3 A-1 C-1 D-1 into my Config override file, restarted the board, and it works

Thank you, I wouldn't have thought of that!

Phaedrux

Glad you got it working.

I should have linked this yesterday. https://duet3d.dozuki.com/Wiki/BLTouch_Troubleshooting

NoSkillzEngineer

@phaedrux lmao yeah, I wish I knew that link existed. That needs to be linked in the wiki under "Connecting Z Probe" under "BLTouch" with the other links there. That would've solved my problems haha.

I just noticed my temperature sensors read 37 and 39 C for the hot end and bed, respectively. Same configuration that I had on my Maestro. Why would it be so far off from room temperature?

Phaedrux

@noskillzengineer said in Maestro To WiFi v1.04 SD files:

That needs to be linked in the wiki under "Connecting Z Probe" under "BLTouch" with the other links there.

Done.

What thermistor are you using?

Veti

@noskillzengineer

the maestro has a 2k resistor for thermistors. the wifi 4.7k you need to adjust the thermistor line

NoSkillzEngineer

I didn't realize the WiFi was so much different in that regard. It's the stock Ender 3 thermistor.

; Heaters
M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
M305 P0 T100000 B4138 C0 R2200 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M307 H1 B0 S1.00
M305 P1 T100000 B4725 C0 R2200 ; Set thermistor + ADC parameters for heater 2
M143 H1 S280 ; Set temperature limit for heater 1 to 280C

What would I have to change and to what would I have to change it to? My thermostat says my temperature is 73° F or about 22.7/22.8

dc42

Change R2200 to R4700, or leave out the R parameter altogether so that it uses the default value for the board.

NoSkillzEngineer

@dc42 Leaving it out entirely resulted in 23.5 degrees celsius which is 74.3 degrees, thank you so much for your help! I'll remember that from now on.