Cura 4.2.1 Config help

Phaedrux

@Shaun said in Cura 4.2.1 Config help:

I have checked and when i send a +5 Z moves 5cm up.

Z+5 should only move 5mm.

Shaun

morning

I have checked every measurement now. movement is exact. Layer 1 still seems to be 2mm above.

wilriker

@Shaun Can you please post the contents of your homing files then?

Shaun

@wilriker said in Cura 4.2.1 Config help:

@Shaun Can you please post the contents of your homing files then?

; homex.g
; called to home the X axis
;
; generated by RepRapFirmware Configuration Tool v2.0.3 on Fri Sep 13 2019 19:45:33 GMT+0100 (British Summer Time)
G91 ; relative positioning
G1 Z2.5 F6000 S2 ; lift Z relative to current position
G1 S1 X-305 F1800 ; move quickly to X axis endstop and stop there (first pass)
G1 X5 F6000 ; go back a few mm
G1 S1 X-305 F360 ; move slowly to X axis endstop once more (second pass)
G1 Z-2.5 F6000 S2 ; lower Z again
G90 ; absolute positioning

; homey.g
; called to home the Y axis
;
; generated by RepRapFirmware Configuration Tool v2.0.3 on Fri Sep 13 2019 19:45:33 GMT+0100 (British Summer Time)
G91 ; relative positioning
G1 Z2.5 F6000 S2 ; lift Z relative to current position
G1 S1 Y-305 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 Y5 F6000 ; go back a few mm
G1 S1 Y-305 F360 ; move slowly to Y axis endstop once more (second pass)
G1 Z-2.5 F6000 S2 ; lower Z again
G90 ; absolute positioning

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v2.0.3 on Fri Sep 13 2019 19:45:33 GMT+0100 (British Summer Time)
G91 ; relative positioning
;G1 Z2.5 F6000 S2 ; lift Z relative to current position
G1 S1 Z-405 F1800 ; move Z down until the endstop is triggered
G92 Z0 ; set Z position to axis minimum (you may want to adjust this)

; Uncomment the following lines to lift Z after probing
G91 ; relative positioning
G1 S2 Z15 F100 ; lift Z relative to current position
G90 ; absolute positioning

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2.0.3 on Fri Sep 13 2019 19:45:33 GMT+0100 (British Summer Time)
G91 ; relative positioning
G1 Z5 F6000 S2 ; lift Z relative to current position
G1 S1 X-305 Y-305 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 X5 Y5 F6000 ; go back a few mm
G1 S1 X-305 Y-305 F360 ; move slowly to X and Y axis endstops once more (second pass)
G1 S1 Z-405 F1800 ; move Z down stopping at the endstop
G90 ; absolute positioning
G92 Z0 ; set Z to axis minimum (you may want to adjust this)

; Uncomment the following lines to lift Z after probing
G91 ; relative positioning
G1 S2 Z15 F100 ; lift Z relative to current position
G90 ; absolute positioning

Phaedrux

Your homing files are configured for endstop switch homing and now Z probe homing.

https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCartesianPrinter#Section_Homing_Z_using_a_Z_probe

Instead of this:

G1 S1 Z-405 F1800 ; move Z down stopping at the endstop
G90 ; absolute positioning
G92 Z0 ; set Z to axis minimum (you may want to adjust this)

You need a G30 command to probe the bed.

And your BLTouch command should be updated to this:
M558 P9 H5 F100 T5000 R0.5

And I assume you've gone through this?
https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe

Shaun

@Phaedrux said in Cura 4.2.1 Config help:

Your homing files are configured for endstop switch homing and now Z probe homing.

https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCartesianPrinter#Section_Homing_Z_using_a_Z_probe

Instead of this:
G1 S1 Z-405 F1800 ; move Z down stopping at the endstop
G90 ; absolute positioning
G92 Z0 ; set Z to axis minimum (you may want to adjust this)
You need a G30 command to probe the bed.

And your BLTouch command should be updated to this:
M558 P9 H5 F100 T5000 R0.5

And I assume you've gone through this?
https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe

Thanks for the feedback, think i figured it all out shortly after updating this.

I want to use my endstop and not the probe which seems to be working just fine.

my issue was that i dont think i hat the hotend touching the bed before starting the calibration. |The result was an offset of 2. i printed the golf marker in rough and super fine without any issues. Will move onto something bigger and update tomorrow.

Shaun

OK found the following which could be contributing to my problems..

When i "Home All" Z doesnt stop by hitting the endstop. it doesnt even trigger the endstop. When i "Home Z" the endstop is hit and triggered.

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2.0.3 on Fri Sep 13 2019 19:45:33 GMT+0100 (British Summer Time)
G91 ; relative positioning
G1 Z5 F6000 S2 ; lift Z relative to current position
G1 S1 X-305 Y-305 F2000 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 X5 Y5 F6000 ; go back a few mm
G1 S1 X-305 Y-305 F360 ; move slowly to X and Y axis endstops once more (second pass)
G1 S1 Z-405 F2000 ; move Z down stopping at the endstop
G90 ; absolute positioning
G92 Z0 ; set Z to axis minimum (you may want to adjust this)

; Uncomment the following lines to lift Z after probing
G91 ; relative positioning
G1 S2 Z0 F500 ; lift Z relative to current position
G90 ; absolute positioning

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v2.0.3 on Fri Sep 13 2019 19:45:33 GMT+0100 (British Summer Time)
G91 ; relative positioning
;G1 Z2.5 F6000 S2 ; lift Z relative to current position
G1 S1 Z-405 F1800 ; move Z down until the endstop is triggered
G92 Z0 ; set Z position to axis minimum (you may want to adjust this)

; Uncomment the following lines to lift Z after probing
G91 ; relative positioning
G1 S2 Z0 F500 ; lift Z relative to current position
G90 ; absolute positioning

Shaun

Silly question, how do i clear any settings saved to the board memory? Ive made so many changes and think starting from 0 would be a good idea.

wilriker

@Shaun Either run M999, push the reset button or power-cycle. In all cases it will reload config.g discarding all changes made since the last start.

Shaun

@wilriker Thanks. Cant seem to get z to move down and trigger the endstop. I have loaded a clean config.g file. Its as if a setting is telling z to stop when i gets to 0 which isnt the high of the endstop.

Phaedrux

@Shaun said in Cura 4.2.1 Config help:

Its as if a setting is telling z to stop when i gets to 0 which isnt the high of the endstop.

Can you explain what you mean by that?