#Not able to QGL

1 messages · Page 1 of 1 (latest)

dark haven
#

Hey, I'm very desperate because I can't get my new Formbot 2.4 working. I built it a month ago, and now I've been stuck for about 10 days with QGL, unable to figure out what's wrong.

I have checked the stepper wiring multiple times and performed the stepper buzz test. I even took apart the entire gantry to inspect everything, but nothing helped. The printer starts the QGL process normally until everything shifts, and the gantry becomes very skewed. It gets to the point where it is so misaligned that the rear left corner crashes into the frame, as seen in the video.

Can someone please help me with this? I'm close to giving up. ;/

raw spindle
#

Make sure your Z steppers are configured correctly. When you do a stepper buzz, Z should be front left, Z1 is back left, Z2 is back right, and Z3 is front right.

Additionally, what test order is your QGL using? From the video it looks like it goes front left, front right, back right, back left (counter clockwise). I know mine goes clockwise starting at the front left but I don't know if that's configurable.

dark haven
#

Hey i solved the problem the points in Qgl in cfg were the wrong order.

tiny granite
#

Your axes are mixed up.

  1. When you home X it should move to the right.
  2. When you home Y it should move back.
  3. When you move the toolhead to 0,0 it should be in the front left corner.
tiny granite
dark haven
#

no i checked it and everything is right now. at first i took points from chat gpt and now i use the default from voron

velvet agate
#

don't use AI for printer configs

verbal crystal
fallow sun
#

when i do the QGL for voron 2.4 i see the tool head when move out of the bed then give erro that no trigger on probe after full movement

verbal crystal
# fallow sun when i do the QGL for voron 2.4 i see the tool head when move out of the bed the...

In the [stepper_z] section, define the "position_min" at -10 or -15.

This allows the carriage to go below zero and find the bend. The rear of the gantry will fall due to the weight on it.

`[stepper_z]
step_pin: PD7
dir_pin: !PD6
enable_pin: !PF10
rotation_distance: 40
gear_ratio: 80:16
microsteps: 16
endstop_pin: probe: z_virtual_endstop
position_max: 340

position_min: -10

homing_speed: 15
second_homing_speed: 3
homing_retract_dist: 3`

To avoid crashing the bed, in the [quad_gantry_level] section set your "horizontal_move_z" to the same value (or higher), but positive.

`[quad_gantry_level]
gantry_corners:
-60,-10
410,420

Probe points

points:
50,25
50,285
300,285
300,25
speed: 200
horizontal_move_z: 10
retries: 6
retry_tolerance: 0.01 #0.0075
max_adjust: 15`