Yet Another BLTouch Post
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Hi Veti,
Thank you for your reply.
I checked test the G30 command and waited, this time, to see if it stopped. It did, after moving down 5mm.
I appreciate your quick assistance.
Thank you,
Darren
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I now can complete the probe test, and can home Z as well as home all.
When I run G29, at the first probe, when the probe retracts, the G29 operation stops with "Error: Z probe was not triggered during probe move." Yet, the pin is retracted.
I get this same error during calibration with G30 S-1.
Am I missing something?
Thank you,
Darren
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retract the pin and post the output of m119
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1/29/2021, 11:43:18 AM M119
Endstops - X: at max stop, Y: at min stop, Z: not stopped, Z probe: not stopped -
@DGEllis said in Yet Another BLTouch Post:
When I run G29, at the first probe, when the probe retracts, the G29 operation stops with "Error: Z probe was not triggered during probe move."
thats can happen if your bed is badly aligned.
have you levelled the bed with paper before probing? -
TBH, I didn't. I thought I left it leveled after my last job, but I will do so right now.
Thanks again for all your assistance.
Darren
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@DGEllis said in Yet Another BLTouch Post:
; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Mon May 25 2020 11:55:10 GMT-0400 (Eastern Daylight Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X205 Y-205 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X-5 Y5 F6000 ; go back a few mm
G1 H1 X205 Y-205 F360 ; move slowly to X and Y axis endstops once more (second pass)
G1 H1 Z-150 F360 ; move Z down stopping at the endstop
G90 ; absolute positioning
G92 Z0 ; set Z position to axis minimum (you may want to adjust this)Your homeall and homez are configured to use an endstop, not the probe.
G1 H1 Z-150 F360 ; move Z down stopping at the endstop G90 ; absolute positioning G92 Z0 ; set Z position to axis minimum (you may want to adjust this)
Replace that with this
G90 ; absolute positioning G1 X150 Y150 F6000 ; move probe to center G30 ; probe the bed
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Hi Phaedrux,
I corrected that issue after I made this post and didn't update the post. I do appreciate, however, the way to move the print head to the center of the bed.
Thank you much!
Darren
PS: I looked at your ZBot. Sharp looking and prints really well too. Awesome work!
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Hi All,
Many thanks to Veti and Phaedrux for timely and accurate assistance. My heavily modified FT 2020 Prusa I3 now can complete a G29, consistently. Thanks guys!
I found another problem. How do I set the Z 0 height? Probing leaves the head too high up so I don't get adhesion, let alone a good first layer.
I used to do it with the Z end stop. I am missing something critical.
What am I missing?
Thank you,
Darren
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@Phaedrux said in Yet Another BLTouch Post:
@DGEllis said in Yet Another BLTouch Post:
; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Mon May 25 2020 11:55:10 GMT-0400 (Eastern Daylight Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X205 Y-205 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X-5 Y5 F6000 ; go back a few mm
G1 H1 X205 Y-205 F360 ; move slowly to X and Y axis endstops once more (second pass)
G1 H1 Z-150 F360 ; move Z down stopping at the endstop
G90 ; absolute positioning
G92 Z0 ; set Z position to axis minimum (you may want to adjust this)Your homeall and homez are configured to use an endstop, not the probe.
G1 H1 Z-150 F360 ; move Z down stopping at the endstop G90 ; absolute positioning G92 Z0 ; set Z position to axis minimum (you may want to adjust this)
Replace that with this
G90 ; absolute positioning G1 X150 Y150 F6000 ; move probe to center G30 ; probe the bed
@DGEllis said in Yet Another BLTouch Post:
I used to do it with the Z end stop. I am missing something critical.
What am I missing?You need to use the probe to homez.
You need to measure the XYZ offset for the probe.
See here: https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe -
Ahah! I have the wrong Z offset.
Thank you!
Darren