Hello Kretov,
I try it to run with ESS Smoothstepper, is that possibel..?
Greetings
Hello Kretov,
I try it to run with ESS Smoothstepper, is that possibel..?
Greetings
Hello Frareg,
I don't have the ESS Smoothstepper, so I can't test it myself, but from its description I understood that this is a CNC machine control board with Ethernet or USB interface, which connects to Mach3 using the plugin. As I read its description, the Smoothstepper has an output for Spindle, so you can use it with my device. You should set the spindle to PWM mode. Use the same frequency of 350 Hz, as for LPT device. This should work. As the brushless controller has its own optocoupling, you can connect the converter directly to Smoothstepper.
Please let me know if you have any questions and the results, of course. It would be interesting!
Best regards!
I have an RCNC that I got working with the USB smoothstepper.
https://www.youtube.com/watch?v=KbaK...HbUSyc19jwTfTQ
Shaun
my x2 conversion ------> http://www.cnczone.com/forums/showthread.php?t=36403
That's great!
Hello Kretov and all User,
thanks for the answer, yes I have build the little circuit and will now testing that, but I see by skmetal7 that it works fine..
I dont now by my ESS Smothstepper is have no direct pin for PWM, so I must testing that..
This weekend I have many time for that..:-)
But I send my result here in next time..
Nice Weekend for all
Frank
Kretov Hello, firstly, thank you very much for sharing your experiences and knowledge.
Almost two years ago I'm building a spindle with bldc motor and my work is hampered by the interface, and now want to use your interface and I have the problem that I can not get the 12F629, and yes the 12F675, but I have no way compile the code that you wrote (and I downloaded the source).
I want to ask if you can compile the code for 12F675 and upload.
From already thank you very much!
Hallelujah! I got the 12F629.
Thanks Kretov and apologies if you did lose time ...
How do you program the PIC16F629 controller, if you don't have a programmer?
Great solution.
Hello all,
As per some requests, here are hex files for both 12f629 and 12f675 controllers.
Yes, the PCB is the same.
Hi Kretov, I have a brushless motor , ESC controller up to 70A power with power supply PSU 12V, 30A, and I need pilot ON/OFF nad speed the motor with mach3 and my BOB 5axis. I not know how to wire among them. Can you help me with more details with a little scheme how to make ? I have a ST-V2 breakboard. Thanks
Hi Walkit,
Here is the high-level scheme or the connection.
Attachment 387642
You connect:
- input of the converter to the LPT output pin of your choice (the one configured in Mach3), output of the converter - to the signal input of the ESC.
- ground of the converter with the ground of LPT port.
- do not connect the signal power pin of the ESC, especially if it has BEC.
- use +5V power source to power up the converter. I just used the +5V from the PC's power supply.
- connect input power +12V of the motor power source to the power inputs of the ESC.
- connect phase outputs of the ESC to the motor.
- you don't need to connect grounds of the 12V power source and the signal/PC on purpose. They are different, isolated circuits.
- color coding in the drawing does not have a particular meaning. Actual colors of wires might be different.
I am not familiar with ST-V2 breakboard. Could you please direct me to the URL, where I could have a look at it? Brief search in the web has not brought any relevant results.
The schematics of my controller has no dedicated on/off switch, but when setting PRM to 0, the ESC will switch off the motor, according to its brake settings. For the machine tool I prefer to switch the brake off.
Hope that helps.
good help
I use this 5 axis breakboard with mach3:
LinuxCNC Mach3 Breakout Board - ijohnsen.com Info...
Hi,
I have looked at this breakout board's manual. Looks like the PWM to spindle control is taken from the LPT pin #1 and outputted to "Spindle on/off control interface". I would recommend to set it up and check it with a scope first. There should be a square PWM with a frequency specified by "Kernel speed" setting on page 4 of the manual and "pulley settings" at page 8. You can refer to the Mach 3 settings for the converter in the beginning of this post - they should override the settings from the breakout board manual, except the pin number - it is #1, according to the documentation.
If, after turning the spindle on in Mach 3, you will not see the reasonable 5V PWM with 50% duty and amplitude of 5V, then something is confused in the manual and we'll have to look for another pin.
Also, see +5V and GND outputs in the bottom-right corner of the breakout board. You can use this ground and power for the converter.
I myself used another Chinese breakout board, with in-built stepper motor drivers. That one had no spindle control at all, and i connected the converter directly to the pin on LPT port. I had to buy an additional PCI LPT controller board for it and more inputs/outputs.