BLTouch V3 config file

jaurand

Looking for some clarification on how to setup 5v logic as per the Bltouch V3 manual or if it is needed.

I have wired my BLTouch exactly as in the following link

https://betrue3d.dk/bltouch-on-duet-wifi-configuratio-and-usage/

If I need the 5V setup using heater 7 pin, how do I implement this in the config file? Is it simply M280 Px S140? Where Px would be what then?

Phaedrux

You shouldn't need to do anything at all to get the V3 working. Just connect it and configure it.

fcwilt

Hi,

I have a Duet2 WiFi/Duex5 setup and I use the PWM5 connector for my BLTouch v3.0.

I don't configure my Z-probe in config.g but in a separate file configprobe.g.

M307 H7 A-1 C-1 D-1 ; enable use the PWM5 connector for the BLTouch
M558 P9 H5 F300 T6000 A5 S0.01 R0.2 ; probe setup step 1
G31 X-44 Y0 Z1.450 P25 ; probe setup step 2
M280 P7 S160 ; clear BLTouch alarm (if any)

Using a separate file allows me to quickly test changes in probe configuration without rebooting AND allows me to call the configprobe.g from multiple places.

I used the BLTouch as it came out of the package.

Frederick

jaurand

@Phaedrux said in BLTouch V3 config file:

You shouldn't need to do anything at all to get the V3 working. Just connect it and configure it.

I had version 2 before working then the pin broke so I primed a new one.

I thought it would just be plug and play, but i read this post and was unsure

https://forum.duet3d.com/topic/10023/bltouch-v3-0-information-setup-and-o-scope-pictures

Phaedrux

Yeah it's a little confusing, but most of the issues surrounding the V3 were with Marlin. No changes or special actions were required with RRF and Duet hardware.

No more resistors, or traces to cut, or anything like that.

jaurand

beautiful! Thank you for the clarification @Phaedrux !

jaurand

@fcwilt do you have to step config.g to look for configprobe.g?

fcwilt

@jaurand said in BLTouch V3 config file:

@fcwilt do you have to step config.g to look for configprobe.g?

Sorry but I don't understand the question.

I have a reference to configprobe.g where it is needed, such as when homing the Z axis, but no reference appears in config.g as it is not needed.

Frederick

jaurand

@fcwilt Sorry I fat fingered. What goes in the config.g so that configprobe.g works? I assume I cannot just make a configprobe.g with all the probe values and have config.g with no probe info

Phaedrux

@jaurand you can actually. Config.g doesn't need anything for the probe, so long as configprobe.g has all the needed commands and it gets called before the probe is activated for probing.

The only thing special about config.g is that it called called at startup. It's a macro like any other. Just a list of commands.

jobesynoob1234

Hello there dont want to be a ain but i am having a problem with a v3.1 bltouch as in everything works up to the point where I put in the g30 command then the thing just sits there with a error saying already deployed

Veti

@jobesynoob1234
please open your own thread. otherwise it becomes confusing.
your problem is most likely with wrong or faulty wiring.

jobesynoob1234

@Veti ok sorry and thanks