Z Axis Runaway (help solve my mystery)

[OnefinityCNC (Onefinity Support)]

Any time a axis move the opposite way than told to, it’s 100% a wire/connection issue:

Troubleshooting: Rail is getting hung, stuck, or out of alignment (x35/x50 machines)

Rail is getting hung/stuck/grinding. Special notes to read before following each step: A rail getting stuck/hung is typically one of two things, either a wire/connection issue or the grub screw on the ball screw isn’t tight on the side that isn’t moving. One thing to remember, stall homing adjustments do NOT affect rail movement during cutting or jogging. If the rail isn’t moving correctly during cutting or jogging, incorrect stall homing is an affect of this greater issue. Any time the axis …