Bad Jackpot 3? / Z Homing Issue

Hey,

Just finished getting the low rider 4 setup, all the parts were purchased off the V1 website. Parts were printed by me at the recommended specs. I initially tested everything where it was easy to work on, I believed it to have be working fully. Labelled everything and moved it to its final location.

Issue I seeing first was the stepper clicking randomly and not moving, lead me to believe it was binding. I released it from the lead screw and reseated it. The clicking no longer happened, also it now seems homing Z axis is unreliable and Z1 motor stops working randomly. A power reset is needed to have it working again.

During homing this message happens: Homing Fail Pull off travel failed to clear limit switch, although the homing was working correctly. Moving upwards, clicks on the switches on z0 and z1 pulls off slights goes back up and then clicks and stops moving. At this moment, you hear the z1 stepper become unpowered. Sometimes during homing, it fails on the first click instead of the second.

Also, if homed successfully and left for a random amount of time. If I go move the Z a few steps only the Z0 will move. I am able to move the Z1 side manually (Physically), tells me its unpowered.

Things to note, X and Y Home perfectly.

Things attempted:

Reseated all connection, at boards and extensions.

All limits are working correctly, when clicked within a few seconds on the webui shows open.

Swapped Z1 & Z0 steppers and limit switches at jackpot. Swapped “Z1” from B to Z and visa versa. After doing this I was seeing issues on the Z0 physical side. This makes believe the B is the issue on the jackpot. Was getting the clicking sound on the stepper, when I previously was not.

$SS showed nothing out of the ordinary.

Anything I could attempt before looking at a replacement?

1 Like

Welcome aboard! Nice to hear another LR4 is up and running. I may not fully understand your problem however I know a lot of people have had the grub screws on the Z couplers come loose. It causes erratic behavior that can seem like electrical issues. Worth a quick check. IMO

Thanks for the suggestion I’ll give that a shot. Now thinking, this could be the issue with it refusing to pull off the limits switches during homing.