Print not Center on Bed

Karim

Hey I am try for figure out why my print is not center on my bed. My print is offset to the right and back. it need to move left and forward.
Center of the bed is X141 Y155

; Endstops
M574 X2 S1 P"^xstop" ; Xmax endstop on hall effect board
M574 Y2 S1 P"^ystop" ; Ymax endstop on hall effect board
M574 Z1 S2 ; configure Z-probe endstop for low end on Z

; Axis travel limits
M208 X0 Y0 Z0 S1 ; Set axis minima
;M208 X-32.5 Y-12.5 Z0 S1 ; Set axis minima
M208 X312 Y325 Z275 S0 ; Set axis maxima

; Z probes
M558 P5 C"^zprobe.in" H5 F300 T6000 ; set Z probe type to switch and the dive height + speeds
G31 P500 X0 Y0 Z-.75 ; set Z probe trigger value, offset and trigger height
M557 X0:282 Y0:310 S40 ; define mesh grid

Phaedrux

@Karim said in Print not Center on Bed:

;M208 X-32.5 Y-12.5 Z0 S1 ; Set axis minima

Is the endstop off the edge of the print surface? It looks like you had corrected for that, but then commented it out.

But since it looks like you're using endstops on the high end of travel, you may just need to adjust your maxima to position X0 Y0 to the corner of the printable area.

Karim

@Phaedrux Homing is front left X0, Y0, limit switch is at the back right X312, Y325. This is a 350x350mm bed . Printable area is 282x310. I try M208 offset but that did not work, it looks like the print is offset towards the limit switch. I am not sure how to adjust maxima to position X0 Y0.

Phaedrux

To accurately measure the maxima positions try this.

Jog the print head so that the nozzle is at where you want 0,0 to be.
Send G92 X0 Y0 to set the position
Send G1 H3 X400 F600 to measure the length of X
Send G1 H3 Y400 F600 to measure the length of Y
Send M208 to report back the newly measured lengths
Update your M208 in config.g with the new maxima

Karim

@Phaedrux said in Print not Center on Bed:

M208
The is what I got.

M208
Axis limits (mm)s X0.0:312.1, Y0.0:325.0, Z0.0:275.0

Phaedrux

Did you position the nozzle at the current 0,0 or did you position it at where you want 0,0 to be? You would need to allow movement outside of the current limits.

If you current 0,0 point is already where you want it to be, then the problem with centering is with the slicer.

Karim

@Phaedrux I move X & Y all the way to the front left, that where my X0, Y0. Then X312 & Y325 move all the way to the end stops. I am using PrusaSlicer.

Phaedrux

Can you show a photo of how off center the print is?

Have you configured your bed size in the slicer?

Do your homing files alter the M208 anywhere?

Karim

@Phaedrux
It looks good now. This is 250x250mm.I did not change anything in the slicer. I don’t know if the G92 X0 Y0 fix it.
X282 Y310 Z275 is my bed size in my slicer