Hi mike

Sorry I don’t have a wiring diagram for the spindle motor, it was just a cheap spindle bought on eBay

I do have a serious question/concern though. I left my machine running an 8 hour cut and came back to it to find the USB port had moved on the board, it looks like there is a serious problem with heat. M running a 24 volt system cooling fans are installed everywhere and as you can see from the photos I installed the xpro upside down to avoid stress on the port . I just wish I’d taken the photos before I tried to secure the port with epoxy.

My problem now is it cost a fortune to have this shipped from the states so I’m now waiting for @ooznest to get stock or think about maybe getting a blue bee module

Rob

 

Thanks Mike. I’ve sent you an email

 

Is there any external pendant or remote control board that is compatible with the CNC Ver4 board?
I am currently using lightburn software, but it would be nice to have a separate display, control board that would eliminate most of the need to have a computer hooked up all the time.

 

Is it possible to use the (D3) Z-Probe pin & GND connection for using the Z-Probe? The video I saw used a couple of pins in the 10 pin block just inside the board. I tried it with the D3 & GND and it times out for me. Seems like if it is marked Z-Probe for that pin, I should be able to use it. Do I need to map those pins somehow or should I just use those shown in the video. I finally found this page that shows what those connections in the video are: Spark-Concepts/xPRO It is shown under the xPro V1 pinout 3/4 the way down that page which maybe did not change for V3. From that diagram looks like A5 & GND he has connected to in the video.

 

Maybe I have some connection not right then since it hit the bottom the last time I did it. Is there a status command I can type while holding the connections together to verify whether it is triggered or not? Here is a photo of the way I hooked it up on the xPRO V3. Does this look like I have it on the correct pins?

 

I am currently using the openbuilds control software. It apparently was the coating on the endmill. I tried running the G38.2 code & connected the 2 alligator clips together & it triggered. I then was more careful where to put the clip on the endmill & it worked that time. I also tried the A5 connector too while I was at it & that worked also. Thanks for the help.

 

@Spark Concepts I'm using xpro v4 on my cnc router and used to have problems with limit switches' false triggers. Found this image online which shows how to hook up an optocoupler to the proximity switches and all been good ever since, but I'm still having problems with false triggers when probing.

Can someone explain how to connect simple two wire probe to the controller via the optocoupler?

 

Hi,

I am facing some problems with my xPro V4. All is fine for the motion of my X/Y/Z, but I can't get my spindle to spin using the PWM port of the board.
I am using a Huanyang VFD with a 2.2kW water cooled spindle.

If I use external control from the VFD no problem, I can spin and modulate the speed.
But whenever I tried from the xPro it starts spinning and stop within seconds. And on the console I have lots of line with "Grbl 1.1f ['$' for help]" displaying. The number of lines varies, and sometimes they are incomplete.

Here under is the configuration of my board/machine and the log of what is tipically happening:

Code:

CNCjs 1.9.20 [Grbl]
Connected to COM4 with a baud rate of 115200

Grbl 1.1f ['$' for help]
client> $$
[MSG:'$H'|'$X' to unlock]
$0=10 (Step pulse time, microseconds)
$1=255 (Step idle delay, milliseconds)
$2=0 (Step pulse invert, mask)
$3=1 (Step direction invert, mask)
$4=1 (Invert step enable pin, boolean)
$5=0 (Invert limit pins, boolean)
$6=0 (Invert probe pin, boolean)
$10=3 (Status report options, mask)
$11=0.020 (Junction deviation, millimeters)
$12=0.002 (Arc tolerance, millimeters)
$13=0 (Report in inches, boolean)
$20=1 (Soft limits enable, boolean)
$21=1 (Hard limits enable, boolean)
$22=1 (Homing cycle enable, boolean)
$23=0 (Homing direction invert, mask)
$24=500.000 (Homing locate feed rate, mm/min)
$25=1000.000 (Homing search seek rate, mm/min)
$26=50 (Homing switch debounce delay, milliseconds)
$27=5.000 (Homing switch pull-off distance, millimeters)
$30=24000 (Maximum spindle speed, RPM)
$31=2000 (Minimum spindle speed, RPM)
$32=0 (Laser-mode enable, boolean)
$100=320.000 (X-axis travel resolution, step/mm)
$101=320.000 (Y-axis travel resolution, step/mm)
$102=320.000 (Z-axis travel resolution, step/mm)
$110=6000.000 (X-axis maximum rate, mm/min)
$111=6000.000 (Y-axis maximum rate, mm/min)
$112=6000.000 (Z-axis maximum rate, mm/min)
$120=500.000 (X-axis acceleration, mm/sec^2)
$121=500.000 (Y-axis acceleration, mm/sec^2)
$122=500.000 (Z-axis acceleration, mm/sec^2)
$130=650.000 (X-axis maximum travel, millimeters)
$131=360.000 (Y-axis maximum travel, millimeters)
$132=100.000 (Z-axis maximum travel, millimeters)
ok
client>
Grbl 1.1f ['$' for help]
[MSG:'$H'|'$X' to unlock]
client> $X
[MSG:Caution: Unlocked]
ok
feeder> M3 S3000
ok
Grbl 1.1f ['$' for help]
Grbl 1.1f ['$' for help]
Grbl 1.1f ['$' for help]
Grbl 1.1f ['$' for help]
Grbl 1.1f ['$' for help]
Grbl 1.1f ['$' for help]
Gr
Grbl 1
Grbl 1.1f ['$' for help]
>

The PWM goes to VI.
The GND goes to ACM.
And I have a wire to connect DCM and FOR.

If I connect the 5v or 10v from the board to the VI no problem it spins fine at 200 or 400Hz.

I am really clueless on the issue. Thanks in advance for any hints or help you could provide guys.

Cheers

 

Such shame @Spark Concepts stopped replying to their own thread :/

Had this happen to me multiple times. Grounding my machine solved the issue.

 

My problem was that not really grounding problem, that's properly done, but it's due to the proximity of my VFD with the xPro, which was just aside, and every time I powered up the VFD it did generate perturbations.

 

Hi, I'm new to writing on this forum, Thought have read lot's of useful information.
Just wanted to ask a question,
I have upgraded my CNC, now I have more powerful stepper motors, Nema 23 Stepper Motor 3Nm 4.2A.
Also I have purchased DM542T 1-4.2A 20-50V DC Digital Stepper Motor Driver,
I just wanted to know if this is a good idea and how to wire them up?
And if I need something else to connect the Digital Stepper Motor Driver to my XPRO v3
and if I need another power supply as i'm running on 24v ?
Thanks for your help,
Cheer's, Dean.

 

Cheers Peter, I will have a look at link!

 

Hi Peter, I would like to know what power supply is recommended for stepper motor driver;s, 24v or 36v ect ?
Also the diagram does not have the clone A axis,
I have made a diagram just wanted you to see if this looks right, Thanks Dean.

 

Hi, Thanks again for the help you have given me,

I have wired up my DM542T stepper motor drivers as like in the link you provided,

Though now when I connect to UGS and try to nudge my motors they make a nasty crunching sound when they try to move?

I only have a 24v power supply LRS-350-24V (I will upgrade to a 36V-10A-360W.)

Also it could be, took me a while to figure out in the past, getting the stepper motor’s wire’s the right way round, Red, Green, Yellow, Blue. (A+ A- B+ B-)

Lastly, I'm not sure what settings the stepper motor drivers should be on SW1 – SW8, On - Off, ect.

Any advise would be great,

Thanks, Dean.

 

Ok, I have been playing with the different combinations when wiring the motors! X, Z Axis is happy with A,B,C,D. Red, Blue, Green, Yellow.
But the problem I am having is, the Y axis is wired, Red, Blue, Green, Yellow,
But clone/slave Y is moving in opposite direction when I wired the same,
If tried wiring clone/slave Y Axis, A, B, C, D, C, D, A, B, B, A, C, D, A, B, D, C, Move's in opposite Direction,
Any other combination I Will hear a crunch from Motor!
So frustrating! Any advice would be great! Thanks as always with help!
Cheers.

 

I'm having issues with limit switches and the xPro v4. When I trigger the switch, a red led lights up on the xPro board, but the machine won't stop moving. There also are not any error messages etc popping up on the Openbuilds Control software (or CNCjs which I tried before).

 

This lends itself well to Software, send $$ to your xPro and let us know what the values are

 

Thanks, will check when I get home. Most probably $21=0. I had the assumption that the limit switches are on by default but it seems that I was wrong about that.