BL-Touch and the Duex 5

SW · 27 May 2019, 16:47

Hello at all,

if I am connect my BL-Touch direct to the Duett WiFi 1.04 like you see at "Connecting a Z probe" he's working very fine on the Expansion "8) Heater 3". And when I connect the Duex to the Duet and the BL-Touch to PWM1 it seems to work too, I can check the settings with the Macros for the BL-Touch - he's working without changing the settings. But if I start the Homing for the Z-Axis the BL-Touch didn't work, no Pin down and I have to stop homing. Can anyone help me please?

dc42 · 27 May 2019, 17:11

Did you remember to remove the i1 parameter from all the M280 commands (e.g. in deployprobe.g and retractprobe.g) when you moved the BLTouch from Heater 3 on the expansion connector to PWM1 on the DueX?

SW · 27 May 2019, 17:19

Oh yeah, thats it! Thank you very much, it works

JustD · 7 Oct 2019, 18:13

Is that OK, If I tell my question here, or should I start a new Thread?

My Problem.. similar to this.

I used my Duet 2 Wifi fine with one Z-engine and two leadsrews with the BL Touch .

;config.g
;Endstops
M574 Z1 S2 ; Define Z to use Probe. Home to Min

; Z-Probe
M558 P9 H7 F500 T9000 X0 Y0 Z1 B1 ; Set Z probe type 9 to bltouch and the drive (5) height + speeds
;G31 P25 X+33 Y0 Z0.894 ; Set Z probe trigger value (1-25, not 500), offset and trigger height (3fach-PH noMixing)

; BLTouch - Heater 5
M307 H7 A-1 C-1 D-1 ; Disable heater 7 to free up PWM channel 5 on the Duex board.

My previous wiring.. that works fine.
![Bild Text]( Bild Link)

But now I use the Duex 5 in order I use 3 independent Z-Axis and a Diamond Nozzle from Reprap, so I need E1-3

;config.g
.
.
M584 X2 Y1 Z2:6:7 U6 V7 P8 S1 ; three Z motors connected to driver outputs 2, 6 and 7, driver 8 for E1
M667 S1 ; Select CoreXY mode

M671 X0:320:162 Y0:0:320 S3

; Drives
M569 P0 S0 ; Drive 0 goes backwards Z1
M569 P1 S0 ; Drive 1 goes backwards Y
M569 P2 S0 ; Drive 2 goes backwards X
M569 P3 S0 ; Drive 3 goes backwards E2
M569 P4 S0 ; Drive 4 goes backwards E3
M569 P6 S0 ; Drive 6 goes backwards Z2
M569 P7 S0 ; Drive 7 goes backwards Z3
M569 P8 S0 ; Drive 8 goes backwards E1

With Z-Probe, I use the same configuration as before.. without the "I1" at deployprobe.g and retractprobe.g
;deploy
M280 P7 S10
;retract
M280 P7 S90

and this Wiring

How can I get an overview about the Drive´s and correspondent Heater / PWM etc..
I dont understand the dependency.

Or, what is wrong at my config?

or is it possible to change to drive 9 and PWM 5 without problems?

P.S.: I see.. in the last picture I change the E-numbers.. E0=E2; E2=E3 and E1=E1

dc42 · 10 Jul 2019, 18:22

So do you have it working now, or not?

JustD · 10 Jul 2019, 18:31

I´m sorry.. my Z-Axis works fine for now.. after BL-Touch works.. I can say more.

But the BL-touch does not work at the Moment..

dc42 · 10 Jul 2019, 18:34

@justd said in BL-Touch and the Duex 5:

I´m sorry.. my Z-Axis works fine for now.. after BL-Touch works.. I can say more.

But the BL-touch does not work at the Moment..

What aspect doesn't work? Does it deploy and retract when you send M401 and M402?

JustD · 7 Nov 2019, 19:11

OK, the red LED is off at the BL-Touch.. and nothing is happen if I send any command to the BLT.

P.S.: additional .. the Z-Axis goes up and down.. if I homing X & Y .. not more..... means..
my 1st Problem, #1/3 stepper direction was different to the other two.... but I fix it.
Only in setup see above, that works.. so I change one Pair at the connector. I can´t change it by Config.g.. alsways the same.. if I configure different to this above... #1 stepper always in oposite direction to the other two.
But in this config, they goes all three down instead of upwards... so I change one pair of cable at the pin-connector for all Z-Steppers .. that fix it.

JustD · 11 Jul 2019, 10:31

Any Help for me?

Whats my fault?

Is it the Configuration, or the wiring.. or the wrong choose of Channel/Drivers for some steppers?

JustD · 11 Jul 2019, 19:54

I try something around.. and testing if Heater 3 & PWM1 is better..
But I get this Message if I start the Alarm Release + Pin Up-Macro

"
× G28 Z

Error: Z probe already triggered at start of probing move
Error: G0/G1: insufficient axes homed"

This is the corosponding Config. The macros & other G-Code-Files are similar changed.

CONFIG.G

M584 X2 Y1 Z2:6:7 U6 V7 P8 S1 ; three Z motors connected to driver outputs 2, 6 and 7, driver 8 for E1
M667 S1 ; Select CoreXY mode

; Define the X and Y coordinates of the leadscrews.
; Must come after M584 (Set drive mapping), M667 (Select CoreXY Mode) and M669 (Choosing Kinematics type)
; Motor order: Front right (1), front left (2), rear center (3).
; Snn Maximum correction in mm to apply to each leadscrew (optional, default 1.0)
;
M671 X0:320:162 Y0:0:320 S3

; Drives
M569 P0 S0 ; Drive 0 goes backwards Z1 (Z)
M569 P1 S0 ; Drive 1 goes backwards Y
M569 P2 S0 ; Drive 2 goes backwards X
M569 P3 S0 ; Drive 3 goes backwards E2 (E1)
M569 P4 S0 ; Drive 4 goes backwards E3 (E2)
M569 P6 S0 ; Drive 6 goes backwards Z2
M569 P7 S0 ; Drive 7 goes backwards Z3
M569 P8 S0 ; Drive 8 goes backwards E1

M350 X16 Y16 Z16:16:16 U16 V16 E16:16:16 I1 ; Configure microstepping with interpolation
M92 X80 Y80 Z800:800:800 U800 V800 E93:93:93 ; Set steps per mm
M566 X900 Y900 Z12:12:12 U12 V12 E120:120:120 ; Set maximum instantaneous speed changes (mm/min)
M203 X12000 Y12000 Z800:800:800 U800 V800 E1200:1200:1200 ; Set maximum speeds (mm/min)
M201 X500 Y500 Z300:300:300 U300 V300 E250:250:250 ; Set accelerations (mm/s^2)
M906 X950 Y950 Z1800:1800:1800 U1800 V1800 E950:950:950 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 X324 Y324 Z355 S0 ; Set axis maxima

; Endstops
M574 X1 Y2 S1 ; Set X=low end Y= high end active high endstops

; Z-Probe
M574 Z1 S1 ; Define Z to use Probe. Home to Min.
;M574 Z1 U1 V1 S2 ; Define Z,U,V to use Probe. Home to Min. <-- möglich?
M558 P9 H3 F500 T9000 X0 Y0 Z1:U1:V1 B1 ; Set Z probe type 9 to bltouch and the drive (5) height + speeds
;G31 P25 X+33 Y0 Z0.894 ; Set Z probe trigger value (1-25, not 500), offset and trigger height (3fach-PH noMixing)
G31 P25 X+26.4 Y15.8 Z0.894 ; Set Z probe trigger value (1-25, not 500), offset and trigger height (Diamond-org)
M557 X45:325 Y25:325 S30 ; Define mesh grid

; BLTouch - Heater 3
M307 H3 A-1 C-1 D-1 ; Disable heater 3 to free up PWM channel 1 on the Duex board.

; Heaters
M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0 (Bed)
M143 H0 S125 ; Set temperature limit for heater 0 to 125C
M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1 (Nozzle)
M143 H1 S285 ; Set temperature limit for heater 1 to 285C
M140 S35 ; set Bed-Temp to 35C at Starttime

; deployprobe.g
; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool on Fri Mar 22 2019 12:45:27 GMT+0100 (Mitteleuropäische Normalzeit)
M280 P3 S10

; retractprobe.g
; called to retract a physical Z probe
;
; generated by RepRapFirmware Configuration Tool on Fri Mar 22 2019 12:45:27 GMT+0100 (Mitteleuropäische Normalzeit)
M280 P3 S90

Macro:

Alarm Release + Pin UP<
M280 P3 S160 ; Alarm Release and Push-Pin UP

Pin Down<
M280 P3 S10 ; Send PWM channel 3 the s10 (angle) command

Pin Up<
M280 P3 S90 ; Send PWM channel 3 the S90 (angle) command

; bed.g
; Called using G32
; Called to perform True Autolevel using 3-point probe
;
M561 ; clear any bed transform
G29 S2; Clear bed height map

; Probe 3-point

M98 Pdeployprobe.g ; deploy mechanical Z probe
M401 ; Deploy probe - deployprobe.g
G30 P0 X0 Y0 Z-9999 ; Front Right
G30 P1 X324 Y0 Z-9999 ; Front Left
G30 P2 X162 Y324 Z-9999 S3 ; Center Rear
M402 ; Retract Probe - retractprobe.g

Same Result as bevore... the BL-Touch do nothing.. no error-message

Colten · 11 Jul 2019, 21:23

wonder if you have an older probe that is 5v only and you are connecting to a 3.3v set of pins for the probe. I used a resistor in order to reduce the voltage slightly

JustD · 12 Jul 2019, 05:27

Oh no.. it´s a brand new origin Probe..

But the Cabeling is from the China-Probe.. and they doenst working..
Is that a Problem?..
I will check ist.. and remove the resistor.

But before I change to a DUEX5, this works with the same new origin probe.

JustD · 12 Jul 2019, 13:46

I have check it.. without Resistor.. no differences... still no function.. hmm

What I also see.. if the X or Y a little far from 0-Point and start homing x / Y .. thats a little curous.

normaly . the Z-Axis have a short movement aroubd 10mm down, before homing X/Y .
My front left leadscrew (1) is running as long as X or Y is moving to the Homing-Point.
The Leadscrew (2/3) do what they should.... go 10mm.. and stop at self.

My question, is it better to switch from the origin Z to another driver (maybe one at the duex)??

JustD · 12 Jul 2019, 17:43

strange.. I´m wondering..
I thougt about.. why my BLTouch have no power.. it seems so. (No LED is on)

I check with my Multimeter and I messure nothing at the duex PWM1 - PWM 5 hmmm..
I double check the two connectors of the Endstops at the Duet.. E0 & E1... and .. oh wondering.. both has power on.. 3,3V to Ground. !
Why the Hell this Ports and not at the Duex?

I thought about the flat-Cable wich connect the Duet with the DUEX.. maybe not OK? Hmm, I think it´s ok, in order to the two Z-drives at driver 6 & 7 are working normal..

Another Test to the extruders shows.. ohh. something goes really wrong!
Instead of any extruder.. folloing situation:
E0 = no reaction..nothing
E1 = the front left Z (U) is flatering not moving
E2 = the rear middle Z (V) is flatering not moving

Hmm.. I thing I have a bigger Problem at my config.g and maybe other files.

I Thought I´m near at btrue´s wiki for 3 Z-Axis & BLTouch
https://betrue3d.dk/bltouch-on-duet-wifi-configuratio-and-usage/#configuring

Additional I check the Btrue´s blog for the BLTouch.. and I see, I have the newest Version of the origin Antclabs BLTouch with the plastic Pin.. and.. 3,3V !!

So my question: Is it rigth to connect the BLTouch with the PWM- connector completle.. incl. the 5V??
Or is it better and correct, to use in this case, the 3,3V vom the Z-Probe Connector from the Duet-Board?

What I also see.. at the WEB-Interface.. is the value of Z-Probe .. allways at 1000.. hmm.

JustD · 15 Jul 2019, 15:54

Push.. no Idea?

Phaedrux · 15 Jul 2019, 18:31

What is the PCB revision of the Duet? You can see the version number on the PCB itself. If you have a v1.03 or v1.04 board, you don't have to worry about 3.3v versus 5v.

The web interface shows 1000 most of the time because the trigger time is very short before the pin retracts, so it's not easy to catch it changing.

JustD · 15 Jul 2019, 20:22

It´s an rev. v1.04
Thank you for this... but I´m stucking with:

my 3 Z-Axis & the 3 Extruders..
the BLTouch.. without any function

I play somthing around with different drivers for teh Z-Axis.. and BL-Touch.. and my last version of Config.g is this.. but don´t wirking right.

M584 X0 Y1 Z5:6:7 U5 V6 W7 P8 S1 ; three Z motors connected to driver outputs 5, 6 and 7 (U,V,W), driver 8 for E2
;M667 S1 ; Select CoreXY mode
M669 K2 Z3 ; switch to CoreXZ mode and multiply motor movements by 3 for the Z axis

; Define the X and Y coordinates of the leadscrews.
; Must come after M584 (Set drive mapping), M667 (Select CoreXY Mode) and M669 (Choosing Kinematics type)
; Motor order: Front right (1), front left (2), rear center (3).
; Snn Maximum correction in mm to apply to each leadscrew (optional, default 1.0)
;
M671 X0:320:162 Y0:0:320 S3

; Drives
M569 P0 S0 ; Drive 0 goes backwards X
M569 P1 S0 ; Drive 1 goes backwards Y
M569 P3 S0 ; Drive 3 goes backwards E0 (E1)
M569 P4 S0 ; Drive 4 goes backwards E1 (E2)
M569 P5 S0 ; Drive 5 goes backwards Z1/U
M569 P6 S0 ; Drive 6 goes backwards Z2 V
M569 P7 S0 ; Drive 7 goes backwards Z3 W
M569 P8 S0 ; Drive 8 goes backwards E2

M350 X16 Y16 Z16:16:16 U16 V16 W16 E16:16:16 I1 ; Configure microstepping with interpolation
M92 X80 Y80 Z800:800:800 U800 V800 W800 E93:93:93 ; Set steps per mm
M566 X900 Y900 Z12:12:12 U12 V12 w12 E120:120:120 ; Set maximum instantaneous speed changes (mm/min)
M203 X12000 Y12000 Z800:800:800 U800 V800 w800 E1200:1200:1200 ; Set maximum speeds (mm/min)
M201 X500 Y500 Z300:300:300 U300 V300 W300 E250:250:250 ; Set accelerations (mm/s^2)
M906 X950 Y950 Z1800:1800:1800 U1800 V1800 W1800 E950:950:950 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 U0 V0 W0 S1 ; Set axis minima
M208 X324 Y324 Z355 U355 V355 W355 S0 ; Set axis maxima

; Endstops
M574 X1 Y2 S1 ; Set X=low end Y= high end active high endstops

; Z-Probe
;M574 Z1 S1 ; Define Z to use Probe. Home to Min.
M574 Z5 S2 ; Define Z to use Probe. Home to Min. <-- möglich?
M558 P9 H7 F500 T9000 X0 Y0 Z1:U1:V1:W1 B1 ; Set Z probe type 9 to bltouch and the heater (7) height + speeds
;G31 P25 X+33 Y0 Z0.894 ; Set Z probe trigger value (1-25, not 500), offset and trigger height (3fach-PH noMixing)
G31 P25 X+26.4 Y15.8 Z0.894 ; Set Z probe trigger value (1-25, not 500), offset and trigger height (Diamond-org)
M557 X45:325 Y25:325 S30 ; Define mesh grid

; BLTouch - Heater 3
M307 H7 A-1 C-1 D-1 ; Disable heater 5 to free up PWM channel 1 on the Duex board.

; Heaters
M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0 (Bed)
M143 H0 S125 ; Set temperature limit for heater 0 to 125C
M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1 (Nozzle)
M143 H1 S285 ; Set temperature limit for heater 1 to 285C
;M140 S35

JustD · 15 Jul 2019, 20:31

I don´t know if it´s really right to have U,V And W.. or not...
Or ist it usefull, to all Z-Axis at the duet (5-7) and no use of the original Z?? I dont know

Nobody can show me really the connection between Heater and PWM.Channels as a Table..(not Pin-#)

I´m sorry.. I´m not a programmer.. so it´s possible I dont know.. what anybody knows.. who can write programs for ... 3D printers...
for the Moment I´m at the end of my Knowledge.. but I want to understand what I do.

Phaedrux · 15 Jul 2019, 20:53

@justd said in BL-Touch and the Duex 5:

M669 K2 Z3 ; switch to CoreXZ mode and multiply motor movements by 3 for the Z axis

Is this a CoreXY or CoreXZ?

I'm not sure what part you're getting stuck on for connecting the BLTouch.
https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe#Section_Duet_2_WiFi_Ethernet_with_Duex_2_or_Duex_5_expansion_board

Have you tested the probe using this? https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe

JustD · 16 Jul 2019, 05:11

uups.. yes.. this is one of my test and play around..

It´s an Core XY Printer and I actually delete this line. and use the Line above as CoreXY

Thats what I mean with.. "1. my 3 Z-Axis & the 3 Extruders.."
"Another Test to the extruders shows.. ohh. something goes really wrong!
Instead of any extruder.. following situation If I try to extrude (if the Nozzle is hot enough):
E0 extrude= no reaction..nothing
E1 extrude= the front left Z (U) is flatering not moving
E2 extrude= the rear middle Z (V) is flatering not moving

Yes I know this two Links.. and I tested it... Thats what I describe.. I can´t test the Deploy or retract, if the BL-Touch doesn´t working correctly.. means .. the normal LED (red in my).. is not lighting.
Nothing.. so you can do no function test.
I checkt the Cabeling twice and more.. messure from the connector up to the connector at the BLTouch... it´s ok.
I messure the Output of the board.. nothing to messure.. = no output.. I describe it above.