So i just upgraded my Z axis with the CNC4Newbie slider. After installation I wired up a new stepper motor and checked to make sure i wired everything up correct. Thankfully everything did exactly what i wanted it to. Once i updated my GRBL setting however something is making an odd noise. I went back to my original stock GRBL setting and it went away. I’m wondering if it’s a speed difference causing the change in tone or what? Has anyone else had this issue. I’ll try to post video’s as well…
i guess i cannot upload the video’s here so here’s a link to the google drive folder. Video’s should be labeled as which is which…
https://drive.google.com/drive/folders/1Rxdq-xrJFy_0ndjAP5dzmazE1-wJVl6N?usp=sharing
What are your old/new values for:
$102
$112
$122
Have you changed the micro step values for Z stepper?
The old Value for $102=188.879 (or something very close to that) My new value for $102=50.0125. I didnt know anything about $112 or $122…
Steppers can have different harmonic resonance depending on their speed and motion. Sometimes you hit a weird frequency and it sounds like she’s going to break apart.
Adjust your micro step to 1/8 ans adjust your 102 again. It will be really smooth!