Posts made by apiazza2010

@dc42 Thank you so much for all the help.
The daughterboard i have is the one with the led's.

I have unfortunately found out that the thermocouples are indeed grounded type. I think this is where my problem lies.

@apiazza2010 Another option is to go to back to AD8495 and run them in the analog temp inputs, and then create a custom curve.

I'm not sure if that will work, but I can try.

Thanks

@apiazza2010

Forgot to mention I am running a Duet 3 6XD board and Teknic Stepper/Driver combos for everything else.

Thank you

Hello,

I am working with a rather large 3d printer. I'm running several thermocouple band heaters that I run back to the duet3d board. The run length is approx. 52 feet (16 meters). What I am experiencing now is that once I enable the motors on machine, the thermocouple reading go to 2000 (wire short). I tried the following to try and figure out where my problem is.

I run a separate wire, away from all components, from the duet3d to the thermocouple. If the band heaters are not installed (floating in the air), the thermocouple reading is correct and steady. Once the band heaters are touching the machine (as installed), the reading goes haywire. This only happens with the motors energized.

Is the issue my motors leaking noise into the system. is there a way for me to isolate them?
They are powered by a different power supply then the duet3d, and everything is grounded to the machine ground.

My understanding is that if my thermocouples weren't isolated properly, I would see a short on the MAX chip at all times, yet I only see it with the motors energized.
My other idea was noise picked up on the long length of the wire, but the installed wire and the free hanging wire away from the gantry show the same effect.

My other idea was to use a Expansion Board 3HC and connect all the thermocouple daughterboards there, and then run CAN back to the machine, but that was because my first ideas was noise in the long thermocouple leads.

Thank you for any help

@dc42 Hello,

Thank you very much for the help.
I'm now running them using a relay to invert the logic of just the Z and Extruder driver, while dual Y and X are on normal logic.
Do you know if R0/R1 does work on 6XD ?

Thank you very much

@dc42 Hello,
Thank you very much for the help.
With the polarity switch, I assume it changes the behaviour for all of the drivers output right?
R1 or so in the firmware does nothing on 6XD Boards right?

Thanks

@apiazza2010
Update, got the M5045 Driver to work, but the enable pin is inversed, as in it's enabled low and disabled high.
I tried adding R1 to the M569 line for the Z axis, but it doesn't work.

@apiazza2010

I have connected them in a variety of ways, but I get the same issue every time. The LED light for pulse turns on when I send a movement, but the motor doesn't turn. I checked phase and double checked the driver work with a different board.
They are connected using the diagram shown in the guide

Hello,

First of all, super helpful forum, found many answers, thank you everyone!
I currently have a 6XD. I have a cartesian printer with dual Y and single X intergrated motor/driver connected to the driver output on 5v and ground trigger.
I am having issues with Z and extruder, for these I'm using external driver ST-4045-A1
What am I doing wrong? I tried messing with the M569 but no difference.
The motors aren't enabled (I can spin them), yet the LED for pulse turns on in the driver.

Thank you,
Andrew