Qidi X3 series printers initial calibration
Initial calibration to go thro for new Qidi X3 series printers. As an example will use X-Max 3, but same applies to all printers

WIP: Max volumetric speed calibration
Qidi own profiles are eagerly fast. For example their profile for Qidi own gray Rapido PLA max volumetric flow is set to 25mm³/s, while realistic quality print speed is more around 18-22mm³/s. Some lucky people have reported that they can also go up to 35-36mm³/s with stock config 

 Since out of box there's no way knowing at what flow you can archive need to make test for it. Easiest way to test it is using OrcaSlicer built-in calibration

Bed leveling / tramming
Adjusting bed leveling screws 

 It's useful to adjust screws, if bed is tilted or some corners of the bed are off 

 It can be done manually moving printhead from corner to corner using paper and manually adjusting screws until all 4 corners feel the same. Or can use Klipper built-in helpers for it 

 Klipper helper macro 

 Klipper Documentation Add this macro to your  printer.cfg 

 [screws_tilt_adjust]

horizontal_move_z: 4

screw_thread: CCW-M4

speed: 300

screw1: 7,37

screw1_name: front left

screw2: 262,37

screw2_name: front right

screw3: 262,297

screw3_name: rear right

screw4: 7,297

screw4_name: rear left 

 Click "Save and restart" to load in updated config 

 Then hit  home or send G28 (gCode for homing) 

 Write  SCREWS_TILT_CALCULATE in commandline to start measuring screws.  

 You should get output something like this: 

 // 01:20 means 1 full turn and 20 minutes, CW=clockwise, CCW=counter-clockwise

// front left screw (base) : x=7, y=37.0, z=2.48750

// front right screw : x=262.0, y=37.0, z=2.36000 : adjust CW 01:15

// rear right screw : y=262.0, y=297.0, z=2.71500 : adjust CCW 00:50

// read left screw : x=7, y=297.0, z=2.47250 : adjust CW 00:02 

 First screw is used as "base" and others need to be adjusted Screw on front right need to be turned clockwise one full turn and a quarter Rear right screw need to be turned counter clockwise 50 minutes, which is about 0.8 turns Rear left screw need to be turned clockwise 2 minutes, which is about 0.03 turns 

 Can keep running G28 (home), SCREWS_TILT_CALCULATE and adjust screws until happy with end result