@Shoki
Have you done a PID tuning for the hotend with the fan running full blast? In another thread, I read it was running at only 70% during PID tune...
Please post your full config.g and the results of M122 and M98 P"config.g" so we can see a fuller picture of your setup. Perhaps also post your homing files and tool change files.
In M950 shouldn't my bed heater be H0 (H zero), rather than T0 (T zero), and my nozzle be T0 (T zero) instead of T1?
No.
T When creating a heater: temperature sensor number, required (see M308). When creating a LED strip: LED type (optional): 0 = DotStar, 1 = RGB Neopixel (default), 2 = RGBW Neopixel. DotStar LEDs can normally be assigned only to an output intended for them.
For my first printer, I went for low price. For my second and following printers, I went for reliability. (I use printers for work. I have other things to do than babysit a printer. I appreciate a fast printer, but if I really need more output, I buy more printers and/or plan better.)
@hauschka SBC mode in 3.1.1 wasn't great duw processing stuff out of sync etc. If I were you I wouldn't bother as this won't be the only issue you have
@Phaedrux yeah that may be better to run continuously. but i still need to get the fan synced up with the heater just in on/off configuration. i suspect a complex daemon setup is overkill.
This is now resolved. One of the extruder stepper wires on the board was loose. When I tugged on it, it came right out of the connector. Additionally, I found the extruder drive gear to be very worn and seemed to be slipping. I fixed the connection for the extruder and replaced the drive gear with a newer and more aggressive one. That seems to have resolved this issue.
Thank you everyone for your help.
@Phaedrux
Yep.. I forgot to try that troubleshooting step before posting. I just made the assumption that the red lead on the fan would go to vfan and black lead would go to fan-.
After your response, I was like duh. went to test it on the always on port and it didn't work, swapped pins and it worked.
this thread can be closed and deleted from existence.
@MarMed@dc42 says that it was accidentally disabled in RRF 3.4.4 (possibly earlier versions too, I don’t know) for Duet 2 on SBC. It will be re-enabled on 3.5 and presumably any further 3.4.x releases.
@Feynman137 In addition to what @OwenD has said, be careful about the terminology. Pulse Width Modulation (which is what PWM) stands for essentially means turning the suppyly voltage on and off in pulses. The PWM value is essentially the ratio between the on pulse and the off pulse. So a PWM value of 0.5 means that the on pulse will be equal in time to the off pulse. A PWM value of 1.0 means that the fan will be permanently on. The PWM frequency is the number of cycles per second. If the requency is say 100Hz, then one cycle will take 10 milliseconds. If the PWM value is 0.5, the the on time will be 0.5 milliseconds and so will the off time. If the PWM value is 1.0, then the on time will be the full 10 milliseconds.
