Using extruder motor output for ON OFF function

[adhanabal]

Hello all
Is it possible to use extruder stepper motor output to control solenoid valve for on off function?
I want switch on and off a valve when E1 turns ON and OFF
Thanks

[jay_s_uk]

use this https://duet3d.dozuki.com/Wiki/Gcode#Section_M571_Set_output_on_extrude

[adhanabal]

@jay_s_uk said in Using extruder motor output for ON OFF function:

use this https://duet3d.dozuki.com/Wiki/Gcode#Section_M571_Set_output_on_extrude

Thank you .. i will check

[adhanabal]

@jay_s_uk Hi where should i use this M571 command?
In config.g? or in slicer starting script?
Also how do i choose particular extruder number for enabling this command? i do not need the solenoid valve operation in all extruders..

[jay_s_uk]

@adhanabal it would go in the config.g
It looks as though it doesn't distinguish between extruders so its either on or off regardless of extruder used.
Maybe an enhancement to M571 could be added here @Phaedrux to allow specific extruder(s) to be followed?

[adhanabal]

@jay_s_uk Hope dc42 notice this and helps..

[adhanabal]

Also im trying to add this relay to ON OFF the solenoid valve, but i dont know where to connect the input signal, and not found any documentation , can you help me with this?

[jay_s_uk]

@adhanabal can you try the upload again

[Phaedrux]

@jay_s_uk said in Using extruder motor output for ON OFF function:

Maybe an enhancement to M571 could be added here @Phaedrux to allow specific extruder(s) to be followed?

Yes that might be a good improvement.

In the meantime it might be possible to use the tool change files to turn in on and off as needed assuming your extruders are for different tools.

[adhanabal]

@jay_s_uk