The following tweaks are intended to improve the accuracy of the stepper motor movements on the Qidi Plus 4
To edit your printer.cfg file, this can typically be done through the FluiddUI Web Page to the printer under the Configuration tab.
Find the file named printer.cfg and click on it
When done editing, press the SAVE & RESTART button in the FluiddUI
For each of the mentioned configuration sections within your printer.cfg file, find the named fields and change the associated value to the newly specified value.
Please ensure that all hold_current configurations in your printer.cfg file are commented out.
They usually are by default, but this is essential for the best print quality.
ATTENTION!
Some of the following configuration changes raise the stock stepper motor run_current values by around 5%.
While this does improve the strength of stepper motor actions, it will also cause the stepper motors and TMC drivers to run a little warmer.
If you do not wish to push more current through your stepper motors and drivers then omit any run_current changes to your printer.cfg file.
Without a boosted run_current the printer will work just fine with the rest of these settings, but I personally like to raise the run_current because it minimises the chance of layer shifts.
Additionally, before raising the stock run_current values, it is strongly encouraged to improve the mainboard cooling by using a larger fan on the mainboard cover.
[extruder]
microsteps: 64
[tmc2209 extruder]
interpolate: False
run_current: 0.8
stealthchop_threshold: 0
[stepper_x]
microsteps:64
[stepper_y]
microsteps: 64
[stepper_z]
microsteps: 16
[stepper_z1]
microsteps: 16
[tmc2240 stepper_y]
run_current: 1.15
interpolate: False
stealthchop_threshold:0
[tmc2240 stepper_x]
run_current: 1.15
interpolate: False
stealthchop_threshold:0
[tmc2209 stepper_z]
run_current: 1.15
interpolate: False
stealthchop_threshold: 999999
[tmc2209 stepper_z1]
run_current: 1.15
interpolate: False
stealthchop_threshold: 999999