Ir probe

aparkin

hi im getting problems getting the homez to work prity sure my problem is in this bit of code

; Endstops
M574 X1 Y1 Z1 S0 ; Define active high microswitches
M558 P1 X0 Y0 Z0 H5 F120 T6000 ; Set Z probe type to unmodulated, the axes for which it is used and the probe + travel speeds
G31 P600 X0 Y0 Z1.50 ; Set Z probe trigger value, offset and trigger height

i followed instruction from here
https://miscsolutions.wordpress.com/mini-height-sensor-board/
and got g31…......... z1.50

but after restart i sned the G30 S-1 and i have to hit emergancy stop

please note i have cardborad over my bed so no DAMAGE CAN BE DONE (touch wood)
what am i missing

Nuffe

P500 not P600

aparkin

Thanks i thought i missed something stupid
Quick question to set home z file should just put
G30 S-1

deckingman

As well as the P600 error in your G31 you also need to change Z to a non zero value in your M558 if you want the probe to be used for homing Z. i.e M558 P1 X0 Y0 Z1 …..etc (currently you have M558 P1 X0 Y0 Z0.........)

Home Z should just have G30. If you add S-1 it won't adjust the Z position.

aparkin

Ok thanks
As for them M558 z0
The guid said it should be in the G30 comand that i put my offset in
G30 x 0 y 0 z 1.5. The 1.5. Is my offset
Are did i miss read it

deckingman

The offset goes in G31 (not G30) so here you would have Z1.5 (assuming your offset is 1.5mm). In M558 you need to tell the firmware which axes the probe is used for homing. Zero means don't use the probe to home this axis, a non zero value means do use the probe for this axis so you set Z1. See this link. https://duet3d.com/wiki/G-code#M558:_Set_Z_probe_type

aparkin

thank-you your a star

aparkin

hi and thanks for the help so far
ok ive got all of the above done and
my code now look like this
M558 P1 X0 Y0 Z1 H5 F120 T6000 ;
G31 P500 X30 Y0 Z1.50 ;

im using a e3d v6 with ir senor sat right in front 30mm on the x axes

home z looks like this
G91 ; relative mode
G1 Z6 F200 ; raise head 6mm to ensure it is above the Z probe trigger height
G90 ; back to absolute mode
G1 X0 Y0 F1000 ; put head over the centre of the bed, or wherever you want to probe
G30 ; lower head, stop when probe triggered and set Z to trigger height

which all works good im having problems setting up auto bed meshing ive read the right up and its ive not sinking in are not making much scenes for me
is there any other setup / tutorial out there you would recommend

aparkin

hi new bed.g file does thi look correct

M561

; Probe the bed at 4 points
G30 P0 X15 Y15 H0 Z-99999
G30 P1 X15 Y235 H0 Z-99999
G30 P2 X235 Y235 H0 Z-99999
G30 P3 X235 Y15 H0 Z-99999 S

aparkin

ok i found out that since i have my ir sencor 30mm in fount of my nozzel and the nozel is set at x0 and y0 with no roo m to move anywhere i have to reset bed.g looking like this
M561

; Probe the bed at 4 points
G30 P0 X35 Y15 H0 Z-99999
G30 P1 X35 Y235 H0 Z-99999
G30 P2 X235 Y235 H0 Z-99999
G30 P3 X235 Y15 H0 Z-99999 S

aparkin

Ok now i have this set up all i do now is. Home all hit the funny key (wavey line with arrow pionting up the anther one pionting down) let do its
Thing then print ??

deckingman

@aparkin:

Ok now i have this set up all i do now is. Home all hit the funny key (wavey line with arrow pionting up the anther one pionting down) let do its
Thing then print ??

errrr, don't know where you see that key. Are you using the Web interface or Panel Due? On the web interface, in the Machine Control section, there are buttons clearly labelled (from top to bottom), Home All, Home X, Home Y and Home Z. I don't have a Panel Due so can't comment on how they might be labelled but what you describe with arrows pointing up and down sounds more like the baby stepping feature.

Dougal1957

Ian the button he is referring to is the Autocal button for a delta and you only see if the Duet is configured as a delta and in that case you dont get the Homex/y/z buttons either.

Doug

aparkin

No im configured as a coerxy
And yes its on the pannel due. On the line where home all hone x ..home y..home..z and far left of screen is the auto cail botton

Yes hitting that botton dose the four piont test ive set up in bed.g
So is that it done hit home.all ..then auto cal then print
Are have i missed a step

deckingman

@Dougal1957:

Ian the button he is referring to is the Autocal button for a delta and you only see if the Duet is configured as a delta and in that case you dont get the Homex/y/z buttons either.

Doug

Doug, - didn't know that - you guys with Delta's always have to complicate things :).

Anyway, it seems our man is sorted.

Cheers

Ian

Dougal1957

Eh just pointing it out lol by the way can you let me know what that insulation material that you use under the bed is called It would be appreciated

aparkin

Me ? Cardboard

deckingman

@Dougal1957:

Eh just pointing it out lol by the way can you let me know what that insulation material that you use under the bed is called It would be appreciated

Thermopanel or some such name. It's main use is for underfloor heating.

dc42

I use cork sheet.

Dougal1957

@deckingman:

@Dougal1957:

Eh just pointing it out lol by the way can you let me know what that insulation material that you use under the bed is called It would be appreciated

Thermopanel or some such name. It's main use is for underfloor heating.

Is it that green fibrous stuff?

I have used cork on my existing machine but was looking for any other alternative for the new one?

Doug