Capacitive Sensor

Veti

. impossible to have a complete mesh.

G32 does not create a mesh. G29 does
G32 does true bed leveling.

post your bed.g

Rudy2A

I have known this for a little while and thanks to this forum that there is a difference between G32 and G29. It was just a tip in case ...

; bed.g

G28 ; Home all Axes
M561 ; Efface la correction de plan
M290 R0 S0 ; Efface Baby-stepping

; Bed levelling (G32)
G30 P0 X0.0 Y132 Z-99999; sonde près d'une vis sans fin, à mi-chemin le long de l'axe Y
G30 P1 X260 Y132 Z-99999 S2; sonde près d'une vis et calibrez 2 moteurs

Veti

@Rudy2A
that only has 2 probe point. why do you think it should probe 4 points?

Rudy2A

This configuration works perfectly with the IR probe.

S2 probes the 4 corners (2X2).

If you put S4, it will probe 4 points on the first line multiplied by 4, so 16 points on the bed.

This is valid for S3, S6 ...

Veti

@Rudy2A

so you are talking about G29 and not G32.

M208 X270 Y270 Z245 S0 ; set axis maxima
G31 P500 X0 Y-43 Z1.30 ; set Z probe trigger value, offset and trigger height
M557 X11:250 Y11:252 S20 ; define mesh grid

This does not match.
Also there will be an error message in the console telling you whats wrong.

Y252 can not be reached with an offset of -43
change this to
M557 X11:250 Y11:220 S20 ; define mesh grid

Rudy2A

@Veti said in Capacitive Sensor:

Y252 ne peut pas être atteint avec un décalage de -43
changez ceci en
M557 X11: 250 Y11: 220 S20; définir la grille de maillage

thank you,

Indeed, with that it works ...

On the other hand, depending on the tests carried out, the capacitive or IR probe is similar. I would tell you that my finding to come.

Rudy2A

I definitely left the capacitive probe to the detriment of the mini IR probe.

The reason is that for me the weight of the capacitive probe was a bit too heavy. She was exerting a difference on my bed when polling.

FYI, my bed is not absolutely stable and the slightest difference in weight causes a difference in the measurement in the height map.

I will be working on another much more stable bed system soon, so I will test again.

Veti

@Rudy2A
there a small capacitive probes like the pinda probe

ziggymanpopo

I found the sensors all gad its addvantages and dis -advantages after som monkeyong arround i decided to try this

ziggymanpopo

I installed the z swich on tip of the extruder
Which sits on two linerer rails so when the nozzle
Touches the bed it trips the sw
This works really well and is extremely accurate
I went this way because of the fluctuations with most sensors. be aware this is a ton of work but well worth it in my opinion. im happy with my mod but took 4 months to put together and i have lots if time. The other sensor i used was a n abl capasitive
I found out i was as much as 1.5 mm off at random
Other times it worke fair but not supper accurate
The other option is the bl toutch im affraid i would go thru a bunch breaking the pins.. good luck thought i would share that.

Rudy2A

@ziggymanpopo Late response due to my work ... Thank you for sharing, I admit that your technique has already turned in my head!