Unresolved Homing/G28 issues

Hi all, I'm pretty new to the 3D printing stuff, and I've been trying to configure my Robo 3D R1 to get better quality/less failed prints- however I've run into a strange issue.

When asking the printer to Home All, either in matter control, cura, or just entering the G28 command in the Gcode terminal, the printer moves to the home position and then quickly jumps to the center of the board for seemingly no reason and auto-levels. I've looked at the wires to the various limit switches and stepper motors and I can't find anything physically wrong (aside from a bent Z-axis rod, I received the replacement yesterday, have yet to install)

This had been more of a pressing issue, as the printer would try to start printing way above the bed, however that seems to be an unrelated issue, as it now prints properly.

So far, I've tried

• Checking the wires to the limit switches and stepper motors
• Reseating the connectors for the limit switches and stepper motors
• Flashing fresh drivers to the unit
• Using Cura
• Using a different computer

Nothing seems to have solved it, however, now I can print again, it's not such a pressing issue.

(I have video- I would post a link, however this is my first post.)

 

Sorry for the late response- I have now checked it both with octoprint and the terminal in the pronterface UI of cura. Typing the G28 command results in the same thing. So, what should I do about this?

 

When you run a G28 command it will first home the X-axis, then move the Y-axis to its end stop, finally the extruder will move to the center of the bed to home the Z-axis. Is the last move the one you are concerned about? Or does it then move to the auto-level process after homing the Z-axis?

 

It's the movement to the center of the bed that concerns me, though I really can't say if it's a real issue. If I just enter "G28" in the G-code terminal it always does that- homes X, then Y, then it moves to the center to the bed to Z- which unless I'm being very foolish (very possible) I don't think it did that before.

 

It definitely did that before, otherwise it would have never homed the Z-axis. Nothing to be concerned about.