Messages

1

PoKeys / Spindle VFD feedback

« on: November 12, 2016, 07:13:30 AM »

Hi there!!!

I own a chinese 800w VFD since 2012 and running like new, now I have a new cnc ethernet controller, I am already able to controle the spindle speed and start/stop from Mach3 but I would like to have the rpm feedback from the vfd into the mach3.
As the VFD screen shows the current rpm of the spindle, how can I get that info, which are the pins on the vfd and what time of signal is it? Pwm or analog?

Thanks

2

PoKeys / PoKeys57CNC vs SmoothStepper

« on: September 02, 2016, 03:54:35 AM »

Hi guys,

I have been working with a cheap cnc machine for the last 4 years and now its time to step up so, I am going to build a bigger and more robust and more precise machine.
After seeking for CNC controllers, I found the Smoothstepper and the PoKeys57CNC among others.
My biggest question is, which one of these two you would recommend? Keeping in mind that I want a stable and precise system as I mill aluminium.

In terms of motors, I'll jump into servo motors with encoders but I'll keep my chinese VFD / spindle for now.

Thank you

Regards.

3

Modbus / ModBus, not more than 63 lines of cfg#????

« on: October 28, 2015, 02:08:32 PM »

Hi there,

I am building an interface for my cnc using the modbus plugin and 2 arduinos, one for inputs and the other one for the outputs.
I have noticed that the modbus plugin does not allow more than 63 lines of cgf commands but I need more than that.

Is it possible to increase this?

Thank you

Regards

4

Modbus / Re: My experiments with Mach3 ModBus and Arduino, Part I

« on: October 26, 2015, 04:16:34 PM »

Hi guys,

In the modbus configuration window, there is a limited number of Cfg# lines, something like 60 or so, is this the absolute maximum or is there a way to increase this number?

Thank you

Kind regards

5

Modbus / Re: Arduino Modbus, Complete, Documented and free

« on: October 20, 2015, 04:15:08 AM »

Hi guys, I found a lot of things by my self but I still need help on how to connect more than one arduino to the system.

someone knows how to do it?

thanks

6

Modbus / Re: Arduino Modbus, Complete, Documented and free

« on: October 17, 2015, 07:50:06 AM »

Well, found how to increase the number of ports on the Mega to be used... it is on the Arduino code, the default value of ports is 14, we just have to change this number to the desired number, in my case I have activated all of the digital ports with the number of 54

Now, on the Modbus configurator how can we call the analog ports? as we cannot write "Axx", it allows just numbers

7

Modbus / Arduino Modbus, Complete, Documented and free

« on: October 17, 2015, 05:44:32 AM »

Thank you for your help...
Now I have some inputs working with leds, some blinking, some fixed but I noticed that just some arduino mega ports from the main row (2 to 12) are working as outputs and none of the extra ports are working (22 to 53).

Can some one explain to me which ports are usable as output / inputs and how to enable the extra ports of the arduino mega?

Is it possible to connect more than one arduino mega to the system? Is there a limit of arduino or ports on the system?

Just one more question, how can I setup a rotary encoder on the mega and mach3 to work as a MPG?

I would like to build a console to my milling machine with as many functions as possible (buttons, leds, switches, etc...)

Thank you in advance

Regards

8

Modbus / Re: Arduino Modbus, Complete, Documented and free

« on: October 16, 2015, 06:34:15 PM »

Hi there...
I tried to compile the modbus code but I'm getting an error... missing the WProgram.h
Any suggestions about this?

Thanks

Kind regards