Ok, so I got everything set up, however when I start the crown test the low rider moves for 3 seconds stops and then just makes humming noises.
Sounds like your cutting speeds are wrong.
I used the settings from the guide, it doesnt even act like its cutting, it just stays in one place the motors humming.
can you post the gcode?
im not sure how to do that, sorry not tech savvy when it comes to this
Try starting with the premade gcode.
Test crown
Sounds like the same issue I had. Ended up being the size of the crown in the file I exported from Estlcam. Try the pre made one @jeffeb3 linked to.