I use some thermal pads under the glass when I need it. It sticks well to the magnetic surface.

Found it.

Seems I have to set also U and V to 0 reference after a Z probe.

Now it works.

macro calibrate Z max for each axis:

M208 S1 Z-3;	Allow z to be negative
G90; 
G1 X0 Y0  F10000; 		go to the center
G1 Z30 F1000;
G30		;		 probe bed and set z=0
G32		; 		start 3 point bed leveling
G1 X0 Y0 F10000;
G30     ;	Probe for Z=0
G1 Z10 F800				; raise nozzle
M584 Z6 U8 V7 P5 ; split z axis
G92 U10 V10; set U V axis to 10 as Z
G91		; relative mode
 
G1 H3 Z370 U370 V370 F1000; move Z, U, V down until endstops trigger and get new z limits

M500 P31		; save new z height
M584 Z6:8:7 P3 ; unsplit z axis
G90

Have to say, object models and conditionnal gcode is a killer feature.

I'm waking up this topic, ( deleted mine also ).

Here is my version of indirect filament reading, inspired by your ideas here.

It uses an 5mm shaft hobbed gear from Bondtech and U shape bearing on the latch.
Tensionning can be adjusted from the latch.

I use it outside of my DD carriage, don't have any problem with retractions ( considering I have 0.6mm retracts this prollyt explains why ).

https://www.thingiverse.com/thing:4882602

I get readings from 188% to 266% , average 230%. Is it acceptable or should I try to read around the 100% ? I think I can tweak it by adjusting the printed wheel diameter.

Don't forget that if your bed is not perfectly flat, bed leveling will try to align 2 points that are not necessarily aligned on the bed plane resulting in tilted bed.
Then you'll also need mesh compensation.

That's what I use here, bondtech hobbed gear.

So after using the calibration factor + few change on the indirect casing, I now have this reported values :

measured min 93% avg 101% max 107% over 12365.3mm

Looks far better than what I ever achieved with direct reading.
I still have some false trigger because of the PTFE tube moving too fast with high acceleration, I will restrain it before the filament reader.

@dc42
Sorry to hijack this thread, but I don't want to create a new one for this.
I've heard somewhere in the wiki that the filament sensor needs to be on the same board than the extruder it's watching to.
Is it still the case with 3.3+?
I'm about to switch to Duet 3 with 1LC toolboard, my filament sensor is outside the carriage, on the main board.

@owend I was about to post the same issue. Happened yesterday, after a filament runout pause, the panel due was locked on screen saver. Couldn't wake it.

@mfs12
For french:

Standby : En attente
Initializing: Initialisation

@user3d try shielded wires?

I got this issue this week. Printer was like moving/extruding in wavy pattern around circles with unusual noise.
It was my extruder jerk/acc that was way too high.
Lowering it from 1000 to 300 srk and 2000 to 600 acc solved theproblem ( Orbiter )

That's what I use here, bondtech hobbed gear.

So after using the calibration factor + few change on the indirect casing, I now have this reported values :

measured min 93% avg 101% max 107% over 12365.3mm

Looks far better than what I ever achieved with direct reading.
I still have some false trigger because of the PTFE tube moving too fast with high acceleration, I will restrain it before the filament reader.

@dc42 ho that's just perfect then.

I'm waking up this topic, ( deleted mine also ).

Here is my version of indirect filament reading, inspired by your ideas here.

It uses an 5mm shaft hobbed gear from Bondtech and U shape bearing on the latch.
Tensionning can be adjusted from the latch.

I use it outside of my DD carriage, don't have any problem with retractions ( considering I have 0.6mm retracts this prollyt explains why ).

https://www.thingiverse.com/thing:4882602

I get readings from 188% to 266% , average 230%. Is it acceptable or should I try to read around the 100% ? I think I can tweak it by adjusting the printed wheel diameter.

@dc42 said in Live changing Z probe parameters without deleting pin:

ut P or C parameters to change dive height, probing speed, travel speed etc. of the existing configured probe.

Thanks. Wondering why I haven't tried that

Hi

I'd like to change my dive height once my 3 point auto bed leveling as been done. By security, I keep the dive height to 15mm in case the bed is tilted before auto level.

Then I'd like after leveling to change the probe dive heightbut I can't call M558 without freeing the zprobe pin first.
Is there an easy way to achieve this ?