@Phaedrux I was using heater 7 before on rrf 2 , so moved the control pin to heater 7 and it works.

@alxndr ok let say you want to probe 50 from each corner ?.
M557 Start x : End x Start y : End Y S steps
M557 X50:170 Y50:170 Which works out to be 30 spacing
So M557 X50:170 Y50:170 S30 will probe between 50 and 170 inc.

@Phaedrux

Not seen sykb on , But I can see lots of faults .
Can't tell what printer he has , but to me the off sets or wrong , the homing files are wrong , and he is not probing the centre of the bed.

The Stepper motors on my ender 5 is wired ABAB , which I would guess in correct for most creality printers.
So if you are swapping the middle pin you are wiring it up as AABB.
To test things out just short two wires on the stepper motor and you will fell a resistance to turning, that's how to find the phases of the stepper or use a meter.
As long as you get the phases correct it will just run in the wrong direction.

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

yes your logic is correct of S55 is correct BUT DON'T FORGET , 0 and 220 is first and last points where the probe will check the bed, So the nozzle will be 45mm off the edge right side of the bed ?. ( don't know if this is a problem or not )
So you may only be able to probe 130mm of the bed.

0+45 and 220-45 ?

not sure about the R value never used it myself , it is a delay before after probe.

@ChrisF3D

1/ what version of the firmware are you using . try M122
( you are on version 3 of the config.g , but have you upgraded to version 3 firmware )
2/ Are you getting the red light and getting the in and out power on self test

@alxndr said in Duet 2 Wifi + BLtouch issues on Ender 5 pro:

; Z-Probe
M558 P9 C"^zprobe.in" H5 F100 T2000 ;
M950 S0 C"exp.heater3" ; define GPIO/Servo pin index
M557 X0:220 Y0:220 S25 ; define mesh grid
G31 X-45 Y-4 Z3.737 ;
M307 H3 A-1 C-1 D-1 ;

G31 X-45 Y-4 Z3.737 this should set it offset to 3.737mm from the trigger point of the probe to the bed, I never bothered with G92 Z0.

Too many points M557 X0:220 Y0:220 S25 , the S25 is the spacing between point so just increase the S value .

Just use m401 and m402 to test if the probe retracts .

Also m558 :- Rnnn Z probe recovery time before the probing move is started.

@tracar

You are on the version 3.1 of the config.g , but what version of the firmware are you on ? use M122

M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.1.1 running on Duet WiFi 1.02 or later
Board ID: 08DGM-95BLL-N6PSS-6JTD6-3SJ6K-K0UZJ
Used output buffers: 3 of 24 (17 max)

But if you are on version 3 of the firmware and config.g try adding the !^ which is pull up and invert .

@alxndr post these files .
retractprobe.g
deployprobe.g
homeall.g
homez.g

Does x and y homing work ?

Type in send code ( and send ) M401 and M402 and see if the bltouch works
just a silly thing ,but are you on version 3 of the firmware ?

@Chriss

My prints for models wasn't that bad , but printing things like boxes each layer was different you could fell a roughness between all the layers , tried calibrating the e-step for my BMG clone which I found to be 420 e-step .
The model I give you fused together and didn't work , I made a box in fusion 360 which fitted inside a second box printed at the same time, no way would they fit.
Printing my boxes over and over again cutting the extrusion factor by 1% each time I found 87% my boxes became smoother and my boxes fitted each other.
Keep trying , I don't see the point of e-step calibration.
I also set up pressure advance , but not sure if that helped or made things worse.

@Veti

I have fitted linear rails , but only to the X axis .
Before if I did a Hi res height map ( 20mm apart ) I could see a ripple with the wheels being off centre.

@Veti

yep , it also could be the helped by the foil I put in the corners to stop it , but just adding to the problem ..

Yes a heated bed at 60c

it is a bad visualiser if you get the wrong idea from it ?
up should be up

I think I may be reading the results of the map wrong ?
The points above the line are positive and the ones below the line negative , So is the bed curving up or down ?
If a negative value means it is less that the set point , does that mean that the bed is really curving up ?

@Chriss

When I did my calibration test , at 60% -70% you could see a gap between the walls and as I increased the extrude factor you could start to see it fully joint into a solid single wall. ( but could not see any difference with the naked eye )

I think a did step 15 method 1 to calibrate it ?
This is my test of calibration

https://www.thingiverse.com/thing:4575774

@Chriss
The Extrusion Calibration I went with was make a box with 0.8mm walls and keep turning the extruder factor down until you say the walls don't join.
You can't use the naked eye to see the walls , without I went down to 60% and could not see that the walls wasn't joined.
With a Magnifying glass I found it was about 85-87% extrusion factor.
I tried that tolerance test and wasn't a good test of tolerance.

@RogerL

(1) just look for Molex KK I got some from ebay !!!
(2) I use JST SM plugs and socket which is what creality uses on the ender 5 plus .
(3) Get a 12/24v to 12v/5v buck converter and you fit any fan you want.

@peterartechno

on point 3 , I would say you need a mosfet or use a ac heated bed ?
Looking at the docs it says 18 amp which is 435 watts max for a 1100 x 600 bed that is a bit low.

Will this influence the other ports yes the fan will be 24 volt .

@Phaedrux

So if you don't set the Q do you get a binary on or off ?

M950 F2 C"fan2" Q500

@bearer

The stopping step is not the big thing which will put people who have used it for the past couple of year since the free-ish version.
The kicker the the only 10 item at a time ? .
Then what will they stop next ?