BIQ Microprobe V2

General Discussion
1

Basic Information:

Printer Model: Ender 3
MCU / Printerboard: SKR E3 V3 mini
klippy.log
klippy.log (153.4 KB)

Describe your issue:

Hey guys, I’m trying to set up a Microprobe V2 on on an SKR E3 V3 board and it’s throwing an error when I load the config with the changes I made from the online manual.

Klipper error
Klipper error617×428 32.4 KB

I’m not sure if it’s relevant but I’m still using
Version: v0.10.0-291-g4ce2d379 firmware on the board
and
Version: v0.12.0-118-g18de421c on the host

The probe config section of my printer.cfg

##################
#  Probe config
##################

[output_pin probe_enable]
pin: PA1
value: 0
[gcode_macro Probe_Deploy]
gcode:
 SET_PIN PIN=probe_enable VALUE=1
[gcode_macro Probe_Stow]
gcode:
 SET_PIN PIN=probe_enable VALUE=0
[probe]
pin: ^!PC14 ## For V1 version, set to ^PC14 for high-level trigger; for V2 version, set to ^!PC14 for low-level trigger.
deactivate_on_each_sample: False
x_offset: -42.0 # Actual offset of the MicroProbe installation
y_offset: 2 # Actual offset of the MicroProbe installation
z_offset: 0.0 # Actual offset of the MicroProbe installation
speed: 5.0
activate_gcode:
 Probe_Deploy
 G4 P500 # Allow 500 milliseconds for the probe to deploy
deactivate_gcode:
 Probe_Stow


[safe_z_home]
home_xy_position: 156,116   # Nozzle coordinates
speed: 50
z_hop: 10
z_hop_speed: 10
#move_to_previous: True


[bed_mesh]
speed: 200
horizontal_move_z: 5

mesh_min: 20, 20 #Change coordinates to match your printer
mesh_max: 190, 190 #Change coordinates to match your printer
probe_count: 9

mesh_pps: 2
algorithm: bicubic
fade_start: 1
fade_end: 10
fade_target: 0

###################
2

Delete

grafik
grafik949×206 6.17 KB

from your printer.cfg

3

Thnaks Sineos.
I just found that a few minutes ago, I was accustomed to not even looking at the part below where it says do not edit.

Sorry for wasting your time over something so trivial. I guess the instructions are geared to someone installing a probe on a printer and not switching to a different one.

4

So that sorted that problem but now I can’t get a workable Z offset with this probe. I’m fairly adept at setting a the Z offset because I change hotends quite regularly and always recalibrate when I do.

After running a PROBE_CALIBRATE and saving the config, the nozzle is almost 0.5mm from the bed and the first layer won’t stick. I tried tweaking it as it printed but the mesh it generated was off as well, The thickness of the first layer was all over the place.

I noticed this warning in the manual for the probe.

V2 warning pullup resistor
V2 warning pullup resistor1037×500 96.2 KB

So I’m wondering if I’m getting a faulty trigger through the pin in the BLTouch port. Maybe it’s floating out of spec for the requirements of the V2 probe. I might try connecting it to the Z_min endstop & see if that makes any difference.

That will have to be tomorrow, it’s getting late & I need the sleep.

5

I’m using one of these probes myself and I’m pretty satisfied.

According to the schematic of the board the PROBE port has no pull-up at all and thus would not satisfy the requirement as per the instruction manual.

The endstop ports do have 10K pull-ups and would satisfy this requirement.