BL Touch Probes Extremely Slowly

fcwilt

The speed limits set in M203 are respected when using the Z probe.

So even though you specify a speed of F1800 in the M558 command the speed of 480 in the M203 limits the speed.

480 is rather slow - where did that number come from? It looks like you may be using a 4mm lead lead screw or some equivalent setup.

Frederick

TRATOON

@fcwilt I found that number online

TRATOON

@fcwilt And it's not just the Z-Axis, whenever I start a print and it starts to home it is very slow when compared to homing it manually.

TRATOON

@fcwilt I just changed Z Axis to 500. I got that number from somebody else's config for ender 5 plus (The Z axis on E5 Plus is really slow) And it was all the axis that were going slow not just the z

fcwilt

@tratoon said in BL Touch Probes Extremely Slowly:

@fcwilt I just changed Z Axis to 500. I got that number from somebody else's config for ender 5 plus (The Z axis on E5 Plus is really slow) And it was all the axis that were going slow not just the z

I would need to see your homing code. The Z axis speed might be limiting homing.

As a reference the Z axis max speed for all my printers is 1200.

Frederick

TRATOON

I just changed the 500 in m203 to 1200

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Sat Apr 30 2022 23:00:17 GMT-0700 (Pacific Daylight Time)
G91                   ; relative positioning
G1 H2 Z5 F6000        ; lift Z relative to current position
G1 H1 X285 Y285 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X-5 Y-5 F6000   ; go back a few mm
G1 H1 X285 Y285 F360  ; move slowly to X and Y axis endstops once more (second pass)
G91             ; relative positioning
G1 H2 Z5 F6000  ; lift Z relative to current position
G90             ; absolute positioning
G1 X175 Y175 F6000 ; go to first probe point
G30             ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91                  ; relative positioning
;G1 Z5 F100           ; lift Z relative to current position
;G90                  ; absolute positioning


; homex.g
; called to home the X axis
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Thu Apr 21 2022 23:00:28 GMT-0700 (Pacific Daylight Time)
G91              ; relative positioning
G1 H2 Z5 F6000   ; lift Z relative to current position
G1 H1 X345 F1800 ; move quickly to X axis endstop and stop there (first pass)
G1 H2 X-5 F6000  ; go back a few mm
G1 H1 X345 F360  ; move slowly to X axis endstop once more (second pass)
G1 H2 Z-5 F6000  ; lower Z again
G90              ; absolute positioning

; homey.g
; called to home the Y axis
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Thu Apr 21 2022 23:00:28 GMT-0700 (Pacific Daylight Time)
G91              ; relative positioning
G1 H2 Z5 F6000   ; lift Z relative to current position
G1 H1 Y345 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 H2 Y-5 F6000  ; go back a few mm
G1 H1 Y345 F360  ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F6000  ; lower Z again
G90              ; absolute positioning

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Sat Apr 30 2022 22:44:38 GMT-0700 (Pacific Daylight Time)
G91             ; relative positioning
G1 H2 Z5 F6000  ; lift Z relative to current position
G90             ; absolute positioning
G1 X175 Y175 F6000 ; go to first probe point
G30             ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91              ; relative positioning
;G1 Z5 F100       ; lift Z relative to current position
;G90              ; absolute positioning

Also why is it that only when its printing it homes slowly, but when I press the Home All in DWC it works fine? Could it be the GCODE File?

fcwilt

@tratoon

It could be. Some slicers have an option to change printer settings, like max speed.

I always disable that feature, if it exists.

You can post the first 50 lines of so of a file you are printing - it will likely be obvious from examining the code if the slicer is messing with your settings.

Frederick

TRATOON

@fcwilt

;FLAVOR:RepRap
;TIME:146379
;Filament used: 178.503m
;Layer height: 0.2
;MINX:121.595
;MINY:35.455
;MINZ:0.2
;MAXX:303.405
;MAXY:304.545
;MAXZ:37
;Generated with Cura_SteamEngine 4.12.1
T0
M190 S55
M104 S195
M109 S195
M82 ;absolute extrusion mode
M201 X500.00 Y500.00 Z100.00 E5000.00 ;Setup machine max acceleration
M203 X500.00 Y500.00 Z10.00 E50.00 ;Setup machine max feedrate
M204 P500.00 R1000.00 T500.00 ;Setup Print/Retract/Travel acceleration
M205 X8.00 Y8.00 Z0.40 E5.00 ;Setup Jerk
M220 S100 ;Reset Feedrate
M221 S100 ;Reset Flowrate

G28 ;Home
G29 ; Start BL-Touch Probing Sequence
M420 S1 Z2 ;Enable ABL using saved Mesh and Fade Height

G92 E0 ;Reset Extruder
G1 Z2.0 F3000 ;Move Z Axis up
G1 X10.1 Y20 Z0.28 F5000.0 ;Move to start position
G1 X10.1 Y200.0 Z0.28 F1500.0 E15 ;Draw the first line
G1 X10.4 Y200.0 Z0.28 F5000.0 ;Move to side a little
G1 X10.4 Y20 Z0.28 F1500.0 E30 ;Draw the second line
G92 E0 ;Reset Extruder
G1 Z2.0 F3000 ;Move Z Axis up
M83 ;relative extrusion mode
G1 F2400 E-0.5
;LAYER_COUNT:185
;LAYER:0
M107
M204 T500
;MESH:20220402_Kavi_Gupta_Bottom_Base_Type_01.stl(2)
G0 F15000 X174.977 Y158.881 Z0.2
M204 P10000
;TYPE:WALL-INNER
G1 F2400 E0.5
G1 F12000 X176.08 Y158.783 E0.03683
G1 X177.149 Y158.497 E0.03681
G1 X178.153 Y158.029 E0.03684
G1 X179.06 Y157.394 E0.03683
G1 X179.844 Y156.609 E0.0369
G1 X180.478 Y155.704 E0.03675
G1 X180.947 Y154.697 E0.03695
G1 X181.232 Y153.631 E0.0367
G1 X181.33 Y152.525 E0.03693
G1 X181.232 Y151.424 E0.03676
G1 X180.945 Y150.352 E0.03691
G1 X180.478 Y149.352 E0.03671
G1 X179.841 Y148.442 E0.03695
G1 X179.06 Y147.661 E0.03674
G1 X178.153 Y147.026 E0.03683
G1 X177.149 Y146.558 E0.03684
G1 X176.08 Y146.272 E0.03681
G1 X174.974 Y146.175 E0.03693
G1 X173.873 Y146.272 E0.03676
G1 X172.804 Y146.558 E0.03681
G1 X171.798 Y147.027 E0.03692
G1 X170.892 Y147.664 E0.03684
G1 X170.11 Y148.444 E0.03674
G1 X169.474 Y149.354 E0.03693
G1 X169.006 Y150.358 E0.03684
G1 X168.721 Y151.424 E0.0367
G1 X168.624 Y152.528 E0.03686
G1 X168.722 Y153.634 E0.03693
G1 X169.007 Y154.7 E0.0367
G1 X169.476 Y155.706 E0.03692
G1 X170.112 Y156.612 E0.03682
G1 X170.894 Y157.394 E0.03678
G1 X171.801 Y158.029 E0.03683
G1 X172.804 Y158.497 E0.03681
G1 X173.873 Y158.783 E0.03681
G1 X174.977 Y158.881 E0.03686
G0 F15000 X174.977 Y158.479
;TYPE:WALL-OUTER
G1 F12000 X176.01 Y158.388 E0.03449
G1 X177.012 Y158.12 E0.0345
G1 X177.952 Y157.681 E0.03451
G1 X178.802 Y157.086 E0.03451
G1 X179.536 Y156.351 E0.03455
G1 X180.13 Y155.503 E0.03444
G1 X180.57 Y154.56 E0.03461
G1 X180.837 Y153.561 E0.03439
G1 X180.928 Y152.525 E0.03459
G1 X180.837 Y151.494 E0.03442
G1 X180.568 Y150.49 E0.03457
G1 X180.13 Y149.553 E0.0344
G1 X179.533 Y148.7 E0.03463
G1 X178.802 Y147.969 E0.03438
G1 X177.952 Y147.374 E0.03451
G1 X177.012 Y146.935 E0.03451

Phaedrux

@tratoon said in BL Touch Probes Extremely Slowly:

M201 X500.00 Y500.00 Z100.00 E5000.00 ;Setup machine max acceleration
M203 X500.00 Y500.00 Z10.00 E50.00 ;Setup machine max feedrate
M204 P500.00 R1000.00 T500.00 ;Setup Print/Retract/Travel acceleration
M205 X8.00 Y8.00 Z0.40 E5.00 ;Setup Jerk

Your slicer has these speed limiting commands in it's start gcode section. Remove them from the slicer.

TRATOON

@phaedrux Now whenever I change the initial layer speed it doesn't work, and prints it at normal speed, which causes adhesion problems.

fcwilt

@tratoon said in BL Touch Probes Extremely Slowly:

Now whenever I change the initial layer speed it doesn't work, and prints it at normal speed, which causes adhesion problems.

Where are you changing that layer speed? It should be in the slicer.

Frederick

TRATOON

@fcwilt It is in the slicer