BLTouch wiring to Azteeg X5 GT

Phill D

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Jul 30, 2018, 2:51:25 PM7/30/18

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Trying to connect BLTouch to AZTEEG x5 GT.

Issue: when BLTouch (ver 2.0) is connected to AZTEEG the green power led is very dim and board does not work. Does not connect to PC.

Currently: Using the servo three wire plug on azteeg. Brown to GND, Red to 5VDC, Yellow to PWM pin 1.23. I confirm 5VDC on board

I plug in and board has dim led green power indicator. I unplug and board runs fine. Confirmed wiring.

black and white wires are disconnected but I am using ZMax.

Config file for probe.

# optional Z probe

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 100 # move feedrate mm/sec

zprobe.probe_height 10 # how much above bed to start probe

# Switch module for Z probe servo control

switch.servo.enable true #

switch.servo.input_on_command M280 S3.5 # M280 S7.5 would be midway

switch.servo.input_off_command M280 S12.5 # same as M280 S0 0% duty cycle, effectively off

switch.servo.output_pin 1.23 # must be a PWM capable pin

switch.servo.output_type hwpwm # H/W pwm output settable with S parameter in the input_on_comand

#switch.servo.pwm_period_ms 20 # set period to 20ms (50Hz) default is 50Hz

# associated with zprobe the leveling strategy to use

leveling-strategy.rectangular-grid.enable true # The strategy must be enabled in the config, as well as the zprobe module.

leveling-strategy.rectangular-grid.x_size 270 # size of bed in the X axis

leveling-strategy.rectangular-grid.y_size 250 # size of bed in the Y axis

leveling-strategy.rectangular-grid.size 5 # The size of the grid, for example, 7 causes a 7x7 grid with 49 points.

leveling-strategy.rectangular-grid.do_home true # # Must be an odd number.

leveling-strategy.rectangular-grid.probe_offsets 0,0,0 # Optional probe offsets from the nozzle or tool head

leveling-strategy.rectangular-grid.save false # If the saved grid is to be loaded on boot then this must be set to true

leveling-strategy.rectangular-grid.initial_height 10 # Optionally an initial_height can be set that tell the intial probe

# where to stop the fast decent before it probes, this should be

# around 5-10mm above the bed

Any questions or ideas are welcome.

Thanks!

wolfmanjm

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Jul 30, 2018, 6:54:54 PM7/30/18

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check your wiring, the azteeg endstops pinout is different to smoothieboards.

Phill D

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Jul 31, 2018, 5:01:14 PM7/31/18

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I do not think I want the limit switches wired up yet since it is not working with just the +5vdc, gnd, and pwm connection. When I connected these three wires the Azteeg board quits working. It is impossible to get an answer from Panucaat. It almost acts like a defective BLtouch or not enough power from the azteeg board but I read that other people have no issues with powering their BLtouch from the board.

Wondering if it is something in the config file to tell the board that yes something is connected to the servo port. I think the internal wiring for the servo port would be fixed...

Maybe I should connect a 5vdc power supply to the BLtouch to see if it lights up? Reading the specs it sounds like it should click twice.

Thanks,

Phill D

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Jul 31, 2018, 5:11:56 PM7/31/18

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I power the bltouch from a solid 5vdc power supply. the bltouch clicks twice.

So now maybe config file or bad board.

If someone else has this working, would like to hear from you...

Thanks.

Mike Loebl

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Aug 1, 2018, 7:43:29 AM8/1/18

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I have a BLTouch working with the Azteeg X5 GT, I'll take some pics and get my config tonight for you. I think I may have had the same problem at the time, and one of the guys on the group helped me out, I found our email exchange and grabbed some of the relevant parts:

From him:

With smoothie you need a separate endstop for z_min. I have the bltouch connected to z max.

Once that is homed then you do the probing with the bltouch.

You need to specify the pin probe for zmax in the Z probe settings in the config.

# optional Z probe

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 100 # move feedrate mm/sec

zprobe.probe_height 10 # how much above bed to start probe

---

From me: Definitely getting closer; wired up to the ZMAX pins using the diagram you sent (black on minus and white on plus), no longer locking up. However not seeing it change status if I look at M119. Also noticed it thinks it's triggered all the time regardless of the state. If I meter the two pins from the BLTouch, they read essentially 0v until I simulate the bed and I see 5v on it; so I think the BLtouch is working. I made sure the gamme_max_endstop was commented out. Feel like I am missing something stupid. Now I get a slight insight into the fun you had getting this going ;)

---

From me: GOT IT!!! The zmax contact pin wasn't making sense to me in the image as looked like it was connected to -/+ lines (at least I thought...) I connected the white to the middle pin and working now. In retrospect, not sure how I missed that.

Capture_LI (2).jpg

Phill D

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Aug 2, 2018, 10:44:14 AM8/2/18

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Update: I added a 12VDC to 5VDC convertor and the probe works. Connected the PWM to the servo PWM on the board.

Black goes to "-" on Zmax and white goes to the middle connector on Zmax. pin 1.29 (no "!")

Must be something with over current on board and BLtouch. Tested with current meter. In rush looked at about 50ma but hard to tell. stand still current was about 20ma.

Next step is figuring out offset and how to use Simplify3D with BLtouch.

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