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*From:* paul lamar <rotaryeng@earthlink.net>
*To:* A10-Me-Earthlink <rotaryeng@earthlink.net>
*Sent:* Monday, February 27, 2017 8:06 AM
*Subject:* Kasuga up grade.


      This is what the power supply cabinet looks like. The big thing on
      the upper right is the 220V 3 phase circuit breaker and master
      switch. All the other circuit breakers appear to be wired to this.

      The spindle motor controller uses 220 3 Phase.

      The servo amps get along on 110 V.

      I am not going to implement the auto tool changer.

      There is a cooling system which I can manual control.

      In fact I can manually controls the spindle speed as well.

      That greatly simplifies the system I hope. It is not like I will be
      making 100 parts at a time. Just a very basic 3 axis.

      What do you think David or anybody?

      Paul Lamar


      Sounds great. I am working on the code for HAL for your drivers. That
      manual was a great help.

      David M. San Jose. CA

      Thanks David I forgot the picture and the docs on the Speecom. Here
      they are.

      I am also working on the design of the end housings. The rear is
      quite simple.

      The front end housing must accommodate a water pump. Does anybody
      have any preferences for water pumps. 2nd gen or RX8? Or some else
      perhaps?

      The oil pump with be a dry sump pump with choices of several brands.


      Pual



      Well, that power cabinet will need to be straightened up a bit.

      There should be a speed controller for your spindle already, just
      need to know what it is so I can find a manual for it and hopefully
      integrate it into the new CNC controller.

      David Mikesell San Jose, CA

I am cleaning it out as we speak. I will make schematic of what it is
now and eliminate the unnecessary stuff which is most of it :-)

I'll put local switches on the cooling system and the tool changer.
Actually on the tool changer they are already there.

The big circuit 3 phase 220 volts breaker is also the master on and off
sw with a handle out side the cabinet.

I just sent the pdf's on the spindle motor controller.

It is called a Speecom and it was made by GE. 3HP 3 phase  220 Volt

Here they are again.

The axis tachs feed back to the servo amps so they may not need to be
interfaced to the EMC.  They put out plus and minus DC volts according
to direction. They are the same tachs that worked with the servo amps
before. It is a Sierracin Magnedyne.

I'll bet some of this tech came out
of remote controlled gun turrets in WW II B29's. :-)

Paul Lamar


I am Jealous!
How come no pictures.
    Milo Burroughs,


I sent them later. If you did not get them I will send them again.

I just realized this Kasuga has a powered nee. That is a wonderful thing.
No fun cranking a nee up and down.  Works off 110 volts so it must have
the circuitry to do that in side this control  box..

David, do you recognize this servo power supply? Apparently the servo
motors do not use a lot of power. This too is powered by 110 Volts AC.
If that is true I am near done on wiring this thing once I get HAL on
the job. (Who ever or what ever  that is??? :-))

The servo amp cabinet is near empty :-)

The X home switch and the X limit switches appear to be one and the same.
Is that possible David?

Paul Lamar


David, all the 110 volt lines and the 3 phase lines have circuit breakers.

Is this in case the cutting tool jams in the part?

Paul Lamar


Nope, that is just a safety issue incase you demand too much current. Your drivers should never be able to draw that much current through the power supply without a direct short.

If a tool jams, the controller does not get the signal from the encoder on the spindle and it cancels out the program through error. Your driver requires a encoder signal to match the last command. Well provided the error signal is programed into the operating software.

David Mikesell
San Jose, CA

Thanks David, We don't have a tach on the spindle motor so will the
Speecom sent out some sort of signal if the spindle motor stops?

I am almost certain it will cut off the power if the motor stalls.

Next question. I have a Fuji Magnetic Contactor part # src 3631-5 in 3 phase series with
the Speecom.  I don't think I need it. Does that sound right?

It was probably installed on the Kasuga before it was converted to NC and the
Speecom added.


Paul Lamar

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