hbot homes correctly but prints mirrored ,

Phaedrux

@tracar said in hbot homes correctly but prints mirrored ,:

so x moves in a negative and y in a positive

If it moves towards +X and -Y, or towards -X and +Y, then either turn the power off and swap the X and Y motor connections, or use M584 in config.g to swap the X and Y motor drivers over.

So swap your X and Y motor plugs.

tracar

changed drives to :
M584 X6 Y5 Z7:8 E3 ; set drive mapping

now with

G91
G1 S2 X10 F3000

x and y move to the negative. so heading x to 0 and y to 0
which is the front left side of the printer.

Phaedrux

@tracar said in hbot homes correctly but prints mirrored ,:

x and y move to the negative.

If it moves in the -X and -Y directions, change the S parameter to S1 in the M569 P0 command. Or in your case, flip the direction on your external stepper for the P0 driver, labeled as X.

Actually that might be wrong because you've now remapped which driver X is assigned to. You're now using driver 6? Flip that one.

tracar

; Drives
M569 P5 S0 T5 R1 ; physical drive y goes forwards
M569 P6 S1 T5 R1 ; physical drive x goes forwards

both move in a positive , to the top right side of the printer

Phaedrux

@tracar said in hbot homes correctly but prints mirrored ,:

both move in a positive , to the top right side of the printer

If the head moves diagonally in the +X and +Y directions, all is well.

Move on to the next direction move test.

When you have the X motor moving correctly, test the Y motor by sending from the console:

G91
G1 S2 Y10 F3000

If the head moves diagonally in the +X and -Y directions, all is well. If it moves in the -X and +Y directions, change the S parameter in the M569 P1 command to S1.

Y+ meaning to the back

tracar

x pos
y neg

Phaedrux

Alright, so now when you jog the print head normally, does +x go to the right and Y+ to the back?

Have you changed your homing files to move to Y positive?

tracar

jogging is correct

y homing needs to be reversed

peter247

@Phaedrux

There is also some positive move need to go minus , eg the back off the end stop move , or they will push into the back stop instead of backing off.
So like I said don't change invert all y moves.

tracar

homeall works
homex ,and homey work
and......x y jog work in the right way

peter247

@tracar

So all you need to do now is set the Z offset ?

tracar

@peter247 said in hbot homes correctly but prints mirrored ,:

So all you need to do now is set the Z offset ?

z always worked right

peter247

@tracar

So Zero mm is zero mm from the bed ?

tracar

all thats left to get back is the bltouch settings and independant z axis for bed leveling

tracar

@peter247 yes z0 is Zero

after it homes to z0 it backs off 5mm

peter247

@tracar

So what is next to do bed.g / G32 ?

tracar

next is to get it to recognize it has a bltouch attached, as M280 P7 S10 :deploy bltouch does not work

Phaedrux

@tracar said in hbot homes correctly but prints mirrored ,:

M280 P7 S10

If we're using RRF3 now, that should be P0 instead of P7.

There should be an M950 command in your config.g that create the servo 0 pin for the bltouch. That's where the zero comes from.

Phaedrux

Bed Area.png

Doing up a diagram like this can be very helpful in getting the offsets all straight. Piece of grid paper works well if you're not a paint wiz.

There's also some useful info here:
https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe
https://duet3d.dozuki.com/Wiki/Using_mesh_bed_compensation
https://duet3d.dozuki.com/Wiki/Bed_levelling_using_multiple_independent_Z_motors

This page will also be useful for getting the hang of RRF3:
https://duet3d.dozuki.com/Wiki/RepRapFirmware_3_overview

And of course the Gcode wiki that will tell you how each gcode works:
https://duet3d.dozuki.com/Wiki/Gcode#main

peter247

@tracar

Which heater pin are you using ?.

Mine is heater 7 , so this should help you .

; Z-Probe config.g

M558 P9 C"^zprobe.in" H2 F100 T8000 A5		; set Z probe type to bltouch and the dive height + speeds
M950 S0 C"exp.heater7"							; create servo pin 0 for BLTouch
G31 P500 X-45 Y-6 Z2.98                        	; set Z probe trigger value, offset and trigger height
M557 X55:295 Y55:295 S80                     	; define mesh grid .. 30 , 60 , 80

Lines 5 and 6 set to your own offsets and mesh grid
This works with any heater

; deployprobe.g
; called to deploy a physical Z probe
;
M280 P0 S10 ; deploy BLTouch

; retractprobe.g
; called to retract a physical Z probe
;
M280 P0 S90 ; retract BLTouch