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John Cutburth's Content

There have been 8 items by John Cutburth (Search limited from 29-March 23)


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#53714 My Netduino CNC Machine

Posted by John Cutburth on 28 October 2013 - 11:00 PM in Project Showcase

 

 

Can anyone provide some information or good recommendations on end mills?

 

 

 

Thanks in advance

 

 

http://www.shapeoko.com is a good place to ask. It is the CNC machine I have but I have not been working with end mills. Everyone there is very helpful and the answer you are looking for I am sure has already been answered.




#52136 Netduino Plus fw 4.2.0 Error reading Tacho from 12v Fan

Posted by John Cutburth on 14 August 2013 - 05:33 AM in Netduino Plus 2 (and Netduino Plus 1)

I am trying to read the RPM from the tacho sensor on a 12v fan but am getting errors once the fan spins up.

 

Error:

Failed allocation for 17 blocks, 204 bytes

private static double _lastPulse = 0;private static double _lastDifference;public static void Main(){    /*Fan Pin Layouts        * Red - +12Vdc        * Black - GND        * White - TACH/Sense        */    var input = new InterruptPort(Pins.GPIO_PIN_A0, false, Port.ResistorMode.Disabled, Port.InterruptMode.InterruptEdgeHigh);    input.OnInterrupt += new NativeEventHandler(OnFanRotation);    var button = new InterruptPort(Pins.ONBOARD_SW1, false, Port.ResistorMode.Disabled, Port.InterruptMode.InterruptEdgeHigh);    button.OnInterrupt += new NativeEventHandler(OnButtonPress);                Thread.Sleep(Timeout.Infinite);}static void OnButtonPress(uint data1, uint data2, DateTime time){    if (_lastDifference > 0)    {        const int milliSecondsPerMinute = 60000;        var milliSecondsPerRotation = _lastDifference * 2; //2 Pulses per rotation        var rpm = milliSecondsPerMinute / milliSecondsPerRotation;        Debug.Print("RPM: " + rpm.ToString());    }}static void OnFanRotation(uint data1, uint data2, DateTime time){    var current = Utility.GetMachineTime().Ticks / TimeSpan.TicksPerMillisecond;    if (_lastPulse > 0)    {        _lastDifference = current - _lastPulse;        //2 pulses per rotation'    }    _lastPulse = current;}



#52103 My Netduino CNC Machine

Posted by John Cutburth on 12 August 2013 - 01:30 PM in Project Showcase

I am in the middle of rebuilding my driver board. I will try to reproduce once I am running again.




#52097 My Netduino CNC Machine

Posted by John Cutburth on 12 August 2013 - 02:43 AM in Project Showcase

yup I have pulled from repo and I have already updated my netduino but still throwing exception

Can you post the exceptions




#52095 My Netduino CNC Machine

Posted by John Cutburth on 11 August 2013 - 08:31 PM in Project Showcase

I have everything working just do a pull from the repo. You will need to update your Netduino to 4.2.




#52080 My Netduino CNC Machine

Posted by John Cutburth on 11 August 2013 - 04:08 AM in Project Showcase

Hey all I know Phil created a repo for this a while back but I needed to update the code to with with .NET MF 4.2 so I created a new public repo under a MIT License. I will try to keep it up to date and maybe toss in some new features. 

 

repo location: https://github.com/jcphlux/DazCam




#52072 New: Netduino 4.3 SDK and VS2012 support!

Posted by John Cutburth on 10 August 2013 - 10:15 PM in General Discussion

Hey guys just wanted to see where we stand with the [color=rgb(40,40,40);font-family:helvetica, arial, sans-serif;]Netduino Plus 1 [/color]and the new firmware.




#52071 My Netduino CNC Machine

Posted by John Cutburth on 10 August 2013 - 09:57 PM in Project Showcase

Hey all I have been away for some time I was going to be working on some changes on this project so I thought I would give this thread a poke ;)

 

Darrin did you ever get a repo setup for this?





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