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Diffstat (limited to 'docs/Config_checks.md')
| -rw-r--r-- | docs/Config_checks.md | 45 |
1 files changed, 28 insertions, 17 deletions
diff --git a/docs/Config_checks.md b/docs/Config_checks.md index 628719e2..32f2329f 100644 --- a/docs/Config_checks.md +++ b/docs/Config_checks.md @@ -81,27 +81,38 @@ require a change to the pullup setting of the pin (the '^' at the start of the endstop_pin name - most printers will use a pullup resistor and the '^' should be present). -### Verify stepper motor direction +### Verify stepper motors -Make sure the printer.cfg file does not have "homing_speed" set for -any axis (or set it to a value of 5 or less). +Use the STEPPER_BUZZ command to verify the connectivity of each +stepper motor. Start by manually positioning the given axis to a +midway point and then run `STEPPER_BUZZ STEPPER=stepper_x` . The +STEPPER_BUZZ command will cause the given stepper to move one +millimeter in a positive direction and then it will return to its +starting position. (If the endstop is defined at position_endstop=0 +then at the start of each movement the stepper will move away from the +endstop.) It will perform this oscillation ten times. -On cartesian style printers, manually move the X axis to a midway -point, issue a G28X0 command, and verify that the X motor moves slowly -towards the endstop defined for that axis. If the motor moves in the -wrong direction issue an M112 command to abort the move. A wrong -direction generally indicates that the "dir_pin" for the axis needs to +If the stepper does not move at all, then verify the "enable_pin" and +"step_pin" settings for the stepper. If the stepper motor moves but +does not return to its original position then verify the "dir_pin" +setting. If the stepper motor oscillates in an incorrect direction, +then it generally indicates that the "dir_pin" for the axis needs to be inverted. This is done by adding a '!' to the "dir_pin" in the -printer config file (or removing it if one is already there). For -example, change "dir_pin: xyz" to "dir_pin: !xyz". Then RESTART and -retest the axis. If the axis does not move at all, then verify the -"enable_pin" and "step_pin" settings for the axis. For cartesian style -printers, repeat the test for the Y and Z axis with G28Y0 and G28Z0. +printer config file (or removing it if one is already there). If the +motor moves significantly more or significantly less than one +millimeter then verify the "step_distance" setting. -For delta style printers, manually move all three carriages to a -midway point and then issue a G28 command. Verify all three motors -move simultaneously upwards. If not, issue an M112 command and follow -the troubleshooting steps in the preceding paragraph. +Run the above test for each stepper motor defined in the config +file. (Set the STEPPER parameter of the STEPPER_BUZZ command to the +name of the config section that is to be tested.) If there is no +filament in the extruder then one can use STEPPER_BUZZ to verify the +extruder motor connectivity (use STEPPER=extruder). Otherwise, it's +best to test the extruder motor separately (see the next section). + +After verifying all endstops and verifying all stepper motors the +homing mechanism should be tested. Issue a G28 command to home all +axes. Remove power from the printer if it does not home properly. +Rerun the endstop and stepper motor verification steps if necessary. ### Verify extruder motor |