Topics created by dieguito

Check the M203 I parameter

https://docs.duet3d.com/en/User_manual/Reference/Gcodes#m203-set-maximum-feedrate

@dieguito those pins connect directly to the microcontroller, so negative voltages are unsafe and may damage it.

Upgrading to 3.4 and setting up event handling would be the best way to go I think.

https://docs.duet3d.com/en/User_manual/RepRapFirmware/Events

@dieguito said in Sinking vs Sourcing Alarm Output Pin Connection to Duet WiFi:

@dc42 can ALM connect to ENC_A in the CONN_LCD header? What does COM0 connect to?

The CONN_LCD pins have no input protection at all, so I don't recommend a direct connection. A simple and safe alternative would be to use an opto isolator and a couple of resistors.

@dieguito said in Duet WiFi with RRF 3.1.1 Ignoring Speed and Displacement Limits:

M569 P6 S0 R1 T50:50:100:0
M92 X3200 Y200 Z400

It’s the step pulse width and step pulse interval (the first two parameters of T) in the M569 line that is limiting your Z speed. Each step takes 50+50 microseconds, and there’s 400 steps per mm (assuming your external driver steps per revolution is set correctly; the microstepping set in config.g is not used on external drivers), so maximum number of steps per second is 1,000,000 / 100 = 10,000 then divide by 400 = 25mm/s, x60 = 1500mm/min.

What external stepper drivers are you using? The timing is very long. Most drivers work with 5 microsecond signals something like T5:5:10:10.

Ian

I switched to the 3.3V pin. It still did not work. I had to shield the wires from noise. Some noise from the driver was invoking the triggers I was using. Thanks for the help!

@dieguito nice that you found the solution and told me. Thanks!

My impression is that I have to add checking for connection problems and electrical interference to my first-to-check list, when endstops, BLtouch etc. don't function correctly.

This may be doable using conditional gcode, but i'm not really a guru on that stuff yet. Have you looked through conditional gcode yet?

@Phaedrux It looks like the only way for them show up on the dwc is through a "virtual" heater? not ideal, but at least it shows me the readings

Thank you!