Bltouch on Azteeg X5 V3

Controllers Smoothie
1

I’m trying to setup a BLtouch on an azteeg X5 mini V3 Delta configuration. Using latest smoothie build and X5 v3 config.
I wired Gnd and Signal to pin 1.29 of the Zprobe endstop section on the X5 board. Used the jumper to set endstop voltage to 5V. Used Pin 2.4 as pwm servo signal

What works:

  • Powering on bltouch probe pin is dropped twice and remains pulled up with lights on. I verified this is the normal behavior.
  • Servo functions M280 S3.0 and M280 S7.0 - push pin out and in and reset alarm.
  • After M280 S5.5 M119 reports trigger and not triggered correctly.

What doesn’t work:

  • M280 S8.4 bltouch’s self test does not complete. Pulls pin up once and stops there. I can’t find anything online about this.
  • G32 or G29 - The nozzle just keeps on going and is not stopped by triggering the probe.

Any ideas? Please help! Thanks!

Imported from wikidot

2

my config code:

zprobe.enable                                true           # set to true to enable a zprobe
zprobe.probe_pin                             1.29          # pin probe is attached to if NC remove the !
zprobe.slow_feedrate                         5               # mm/sec probe feed rate
#zprobe.debounce_count                       100             # set if noisy
zprobe.fast_feedrate                         70             # move feedrate
zprobe.probe_height                          10               # how much above bed to start probe


associated with zprobe the leveling strategy to use


leveling-strategy.delta-calibration.enable   true            # basic delta calibration

leveling-strategy.delta-calibration.radius   100             # the probe radius

leveling-strategy.delta-calibration.initial_height 10


switch.servo.enable                           true

switch.servo.input_on_command                 M280

switch.servo.input_off_command                M281

switch.servo.output_pin                       2.4

switch.servo.output_type                      hwpwm

switch.servo.pwm_period_ms                    20

3

That sounds like a broken bltouch, or noise in the wire going to it. How long is it ?

4

The wire is long ~2.5 feet and cabled up with all the other hotend wires. I can reroute it and see if the behavior changes.
Thanks for the suggestion!

Guy

5

Would Magball arms cause noise? The wires ran between two magballs on the effector, but the other electronics like the thermistor aren’t showing any issues?

6

Lots of things cause noise, it’s usually a combination of issues.
I find that Cat-5 cables ( shielded ones ) work very well for bltouch. Make sure each signal is paired and twisted with it’s own separate ground within the cable.

7

Just for fun, try m280 s8.7. I am having the same problem as you and that puts my bltouch into self test mode properly.

8

I took it off the machine for now, till I can work on it more. But I will try M280 S8.7 as soon as I can thanks.