Z axis leveler in the wrong direction

  • z axis homing in the wrong direction when auto bved leveling
  • under control extrude and retract operate in the wrong direction
  • reloaded PI image
  • re flashed printer
  • tried in safe mode - still a problem

G code
M201 X500.00 Y500.00 Z100.00 E5000.00 ;Setup machine max acceleration
M203 X500.00 Y500.00 Z10.00 E50.00 ;Setup machine max feedrate
M204 P500.00 R1000.00 T500.00 ;Setup Print/Retract/Travel acceleration
M205 X8.00 Y8.00 Z0.40 E5.00 ;Setup Jerk
M220 S100 ;Reset Feedrate
M221 S100 ;Reset Flowrate
G28 ;Home
G92 E0 ;Reset Extruder
G1 Z2.0 F3000 ;Move Z Axis up
G1 X10.1 Y20 Z0.28 F5000.0 ;Move to start position
G1 X10.1 Y200.0 Z0.28 F1500.0 E15 ;Draw the first line
G1 X10.4 Y200.0 Z0.28 F5000.0 ;Move to side a little
G1 X10.4 Y20 Z0.28 F1500.0 E30 ;Draw the second line
G92 E0 ;Reset Extruder
G1 Z2.0 F3000 ;Move Z Axis up

Version 1.9.3
octoprint-systeminfo-20231214142040.zip (228.8 KB)
Printer CR10-V2

many thanks

That's weird
Does it work when you control the printer via the display or print from SD card?

no it works in the reverse direction - canny figure it out
Any light on the subject would be appriciated

That means either you use the wrong cables or those steppers are inverted in the firmware.

Did you build the firmware yourself?

1 Like

same machine running for 2.5 years no cable alterations
flashed firmware - still no change

Have you dismantled the printer?,
Have you put the Z stepper cable in the controller board correctly?
I'm assuming there's a separate socket for each Z stepper so two cables..
Your last answer eliminates cables and firmware,
The only way the steppers could move in the wrong direction at the same time is:
Either a wiring fault to both steppers - I have a CR10S-Pro and both stepper cables failed at the connector which meant a bit of delicate soldering.
Firmware which is moving the steppers in the wrong direction - and you say no change
Possibly a Stepper motor driver problem - wouldn't be unknown, having blown drivers myself [caused by overheating].

Going in the reverse direction means the polarity at the stepper coils is opposite to what it should be, if nothing else has changed is the orientation of the cables correct? Odd that it should only affect the Z steppers, I'm not familiar with the cabling to the external control box. But there's nothing else that could send them up when you want down. :frowning: