MCU GD32 F303 compatible

[navivfr]

Hello,

• I have a MCU GD32 F303 with BL Touch.
• I installed latest your firmware.

But seems to be an issue with Z axis : it doesn't want to go down (event with motion I cannot get it down).

When doing Bed leveling (after setting up Z offset): • X/Y axe move to home, • But for Z homing , the head move to plate center, Z move up a bit • probe try to nivel then nothing...

I missed something ?

BR

[bdwilson]

Works fine with my F303. Did you install the BLtouch properly? You have to remove the z endstop and connect the bltouch there. Do not use the green z-max connector. A diagram is here: https://bubba.org/kp3s/3dTouch/

[navivfr]

Dear Wilson,

Thank you for replying...

I guess that is the trick, since I used the BL touch with the KP3S 'normal' firmware - so the BL touch is connected like Kingroon said...

But whet happen to the Z Stop then ? Is not used anymore ?

BR

[bdwilson]

I had issues getting bltouch to work using their documentation. This was 2 years ago pre-titan. I will look at this the next time I make an update.

[navivfr]

Hello,

thanks a lot.. working now (I must read more carefully...) Still some questions (sorry). When auto level:

• How to select the matrix number point and range (borders) ?
• when levelling - the extruder and bed warm up -> how to set those values (i'm using mostly PETG so bed is 100°, and extruder I don't need to warm it up)
• How to set the approach speed and close level speed ?

With KP3S my robin_nano_cfg.txt look like this :

>GRID_MAX_POINTS_X  5   
>GRID_MAX_POINTS_Y  5       

>Z_CLEARANCE_DEPLOY_PROBE   2   
>Z_CLEARANCE_BETWEEN_PROBES 10  

>LEFT_PROBE_BED_POSITION    24  
>RIGHT_PROBE_BED_POSITION   175
>FRONT_PROBE_BED_POSITION   5
>BACK_PROBE_BED_POSITION    175

>XY_PROBE_SPEED     9000
>Z_PROBE_SPEED_FAST 1000
>Z_PROBE_SPEED_SLOW     60

Extra Q: Why it is a -4mm offset on Y axis - can I set it to 0mm ?

BR

[navivfr]

ok... i recompile all with my parameters...