BLtouch dosent working

iam99pk

Hmm.. I have tryed that to, but i get 4.8v after cutting the thing.. Rest of the board works fine thoe.. But gona look at it later.

Veti

the bltouch uses a hall probe. it will trigger only for a very short amount of time. you will most likely miss it.

Phaedrux

G31 P0.1 is too low. Try G31 P25.

M558 F500 is pretty fast for BlTouch probing. Try F100

Also see these

https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe#Section_BLTouch
https://duet3d.dozuki.com/Wiki/Test_and_calibrate_the_Z_probe
https://duet3d.dozuki.com/Wiki/BLTouch_Troubleshooting

iam99pk

@phaedrux yeah te 0.1 was Just a test, i had it on 25..

iam99pk

@veti so madeby the multimeter dosent se the trigger then and only shows 0.150v

Phaedrux

If you do the dynamic test procedure from the test and calibrate z probe link, does it stop the z motors from turning? The Z Probe status in the DWC will only flash to 1000 very briefly so it can be very hard to notice and may not always show as changing at all.

dc42

Is it a version 3 BLTouch? They changed the output circuit in that version.

iam99pk

@phaedrux well i feel like an idiot now xD it did work on my "test bench" now...

gona try it in the printer now an see if it work

Phaedrux

Just have your hand near the power switch so you can kill the power if triggering the probe doesn't stop the motion.

iam99pk

@phaedrux looks like G30 worked fine now. gona mount the Bltoch now and try more tomorrow