M671 like function for Delta printer

OwenD

@tecno
I'm going to have to eat my words on this one.
There does indeed seem to be some sort of issue with saving echo commands that are not sent from the DWC channel.
I tried putting M118 in the macro as well with no joy.

Your only option at this point is to use echo to write to the file directly from the macro.

echo >"0:/sys/savedData.txt"
G30 S-1 ; do probe at current point
echo >>"Stopped at height " ^ move.axes[2].machinePosition ^ "mm"

tecno

@OwenD
Trying this

echo >"0:/sys/savedData.txt"
M562                    ; clear any bed transform from mesh leveling
G90                     ; absolute positioning
G1 Z50 F4000            
G1 X0 Y0				; 1 point
G30 S-1
echo >>"Stopped at height" ^ move.axes[2].machinePosition ^ "mm"

And get this error:

M98 P"0:/macros/test"
Stopped at height 0.758 mm
Error: in file macro line 7 column 28: meta command: expected an expression

Above creates 2 empty files

OwenD

@tecno
Apologies.
Should have had the filename in both echo commands.

echo >"0:/sys/savedData.txt"

G30 S-1 ; do probe at current point

echo >>"0:/sys/savedData.txt" "Stopped at height " ^ move.axes[2].machinePosition ^ "mm"

tecno

@OwenD

No reason to apoligise, I am thankful for all help I can get.

Now I get these values in txtfile, they also show up in console but nothing can be done there.
How to save the file so it can be exported as CSV directly from console.

OwenD

@tecno
I'm not sure I understand what you are looking for.
The use of the echo command is detailed here
https://docs.duet3d.com/User_manual/Reference/Gcode_meta_commands#echo-command

If you want each probe point on a single line then use three > symbols

echo >"0:\sys\testFile.csv" "Test1,Test2,Test3,Test4,Test5,"
while iterations < 5
   G30 S-1
   echo >>>"0:\sys\testFile.csv" move.axes[2].machinePosition  ^ ","

The resulting file will be something like

Test1,Test2,Test3,Test4,Test5,
1.388,1.595,1.595,2.015,2.213,

tecno

@OwenD

Error: in file macro line 8 column 8: meta command: expected string expression

achrn

@tecno said in M671 like function for Delta printer:

@OwenD

Error: in file macro line 8 column 8: meta command: expected string expression

None of the macro extracts you've posted in teh thread recently even have an eighth line. What does line 8 of the macro file say?

tecno

@achrn

echo >>>"0:\sys\testFile.csv" ^ move.axes[2].machinePosition ^ ","

achrn

@tecno https://docs.duet3d.com/en/User_manual/Reference/Gcode_meta_commands#echo-command says >>> is only supported in firmware 3.5beta2 and later, what are you running?

tecno

@achrn
3.4.5 and nobody has said this before.

It runs now but still I need to get correct syntax for the csv file for all results on same line.

echo >>"0:\sys\testFile.csv" {move.axes[2].machinePosition} ,","

point1,point2,point3,point4
0.858 ,
0.824 ,
1.322 ,
0.821 ,

achrn

@tecno said in M671 like function for Delta printer:

@achrn
3.4.5 and nobody has said this before.

Well, it's been in the docs a while, I think.

It runs now but still I need to get correct syntax for the csv file for all results on same line.

I don't think you can, working it in a loop like that. you could dump the loop and do five separate probes storing in single variables then write to file with a single line, I think. e.g.

    G30 S-1  ; probe
    set var.z1 = move.axes[2].machinePosition ; memorise probe position
    G30 S-1
    set var.z2 = move.axes[2].machinePosition
    G30 S-1
    set var.z3 = move.axes[2].machinePosition
    G30 S-1
    set var.z4 = move.axes[2].machinePosition
    G30 S-1
    set var.z5 = move.axes[2].machinePosition
   echo >>"0:\sys\testFile.csv" "whatever", var.z1,  var.z2, var.z3, var.z4, var.z5

tecno

@achrn

OK, will play with your suggestion and see the results.

tecno

M98 P"0:/macros/test var.g"
Stopped at height 0.708 mm
Error: in file macro line 7 column 13: meta command: unknown variable 'z1'

G28
M562                    ; clear any bed transform from mesh leveling
G90                     ; absolute positioning
G1 Z50 F4000            
G1 X0 Y0				; 1 point
G30 S-1
set var.z1 = move.axes[2].machinePosition
G1 Z50 F4000 
G1 X-154 Y-164 F4000    ; 2 point   
G30 S-1
set var.z2 = move.axes[2].machinePosition
G1 Z50 F4000
G1 X-63 Y214 F4000      ; 3 point   
G30 S-1
set var.z3 = move.axes[2].machinePosition
G1 Z50 F4000
G1 X217 Y-52 F4000      ; 4 point   
G30 S-1
set var.z4 = move.axes[2].machinePosition
G1 Z50 F4000
echo >>"0:\sys\testFile.csv" "whatever", var.z1, var.z2, var.z3, var.z4
G28

achrn

@tecno said in M671 like function for Delta printer:

Error: in file macro line 7 column 13: meta command: unknown variable 'z1'

Well yes, you need to initialise the variables.

var z1 = 0
var z2 = 0
var z3 = 0
var z4 = 0
var z5 = 0

before you first refer to any of them.

tecno

@achrn said in M671 like function for Delta printer:

@tecno said in M671 like function for Delta printer:
Error: in file macro line 7 column 13: meta command: unknown variable 'z1'
Well yes, you need to initialise the variables.
var z1 = 0
var z2 = 0
var z3 = 0
var z4 = 0
var z5 = 0
before you first refer to any of them.

Works like a charm now!

Is there a way to replace "whatever" with date + time?

dc42

@tecno said in M671 like function for Delta printer:

echo >>"Stopped at height" ^ move.axes[2].machinePosition ^ "mm"

Should be:

echo >>"0:/sys/savedData.txt" "Stopped at height" ^ move.axes[2].machinePosition ^ "mm"

i.e. you need to specify the filename again.

Instead of using move.axes[2].machinePosition I suggest you use sensors.probes[0].lastStopHeight as I suggested earlier.

tecno

This is what works now, only missing part is date/time stamp.

; test var.g macro
datetime 0.758 1.074 1.122 0.821
datetime 0.708 1.074 1.022 0.771

G28
var z1 = 0
var z2 = 0
var z3 = 0
var z4 = 0
M562                    ; clear any bed transform from mesh leveling
G90                     ; absolute positioning
G1 Z50 F4000            
G1 X0 Y0				; 1 point
G30 S-1
set var.z1 =  sensors.probes[0].lastStopHeight
G1 Z50 F4000 
G1 X-154 Y-164 F4000    ; 2 point   
G30 S-1
set var.z2 = sensors.probes[0].lastStopHeight
G1 Z50 F4000
G1 X-63 Y214 F4000      ; 3 point   
G30 S-1
set var.z3 = sensors.probes[0].lastStopHeight
G1 Z50 F4000
G1 X217 Y-52 F4000      ; 4 point   
G30 S-1
set var.z4 = sensors.probes[0].lastStopHeight
G1 Z50 F4000
echo >>"testFile.csv" "datetime", var.z1, var.z2, var.z3, var.z4
G28

achrn

@tecno said in M671 like function for Delta printer:

echo >>"testFile.csv" "datetime", var.z1, var.z2, var.z3, var.z4

echo >>"testFile.csv" state.time, var.z1, var.z2, var.z3, var.z4

tecno

@achrn

Is there a way to format output to 0,000 and not 0.000 as this is a language problem?

dc42

@tecno if the format is CSV then you must use '.' as the decimal separator character, because ',' is used to separate one field from the next. The program you use to import the .csv file should recognise '.' as the decimal separator.