Advertisement Announcement - DigiSpeed Spindle Speed Controller for Mach2, TurboCNC, etc

Hi,

I have now completed the development and testing of the DigiSpeed DC motor
speed controller. Its purpose is to allow spindle speed control from CNC
software, Primarily Mach1/2, TurboCNC and other software. It provides an
isolated 0 -10Vdc output voltage so that it can directly replace the manual
speed control potentiometer on KB Electronics KBIC style DC motor speed
controllers.

This style controller can be fond in Sherline Mills and Lathes and many of
the Asian import mini lathes and mills.

The form-factor of the DigiSpeed has been designed so that it will fit as an
upgrade into the Sherline DC motor controller housing.
Many many thanks to Ballendo for his assistance in this and other areas.

The DigiSpeed can be controlled via Mach1/2 using the PWM spindle control
signal.

Antonius Groothuizen has kindly modified TurboCNC to drive the DigiSpeed in
the STEP/DIR mode. He has integrated it into the S word function so that it
should be seamless. He gets a free DigiSpeed for that.

The DigiSpeed can also be controlled by an UP/DOWN input interface, in
addition to a SYNCHRONOUS SERIAL interface.

There is a free DigiSpeed controller for the Macro King that writes the
synchronous serial interface macros for Mach2. Email me off line if you are
interested.

The DigiSpeed controller can also be user programmed with motor
characteristics to compensate for any drag and non-linear characteristics in
the spindle motor and drive system.

Details of the DigiSpeed controller can be found at;
http://people.smartchat.net.au/~homann/DigiPot.html

and a photo picture at;
http://people.smartchat.net.au/~homann/DigiSpeedPicture.html

On the right you can see the minidin connector, and the 3.5mm stereo jack
connector.
In the middle is the toggle switch to select between manual or computer
speed control.
The 3 spade connectors are where you plug your existing manual potentiometer
into.
The 3 flying leads plug into your controller board in place of the existing
manual speed pot. (Blue connectors will be replaced with better insulated
ones.)
The small blue trim pot allows the maximum manual motor speed to be set.
The LED behind the blue trim pot illuminates when manual speed control is
selected.
The LED on the right illuminates as follows.
Enable not active, mode is PWM, LED is solid RED.
Enable not active, mode is STEP/DIR or UP/DOWN, LED is solid GREEN.
Enable not active, mode is SYNCHRONOUS SERIAL, LED is solid YELLOW.
Enable is active, Speed is zero, LED is slow double flash in RED.
Enable is active, Speed is greater than zero, LED is fast flash in RED.

I also have a couple of accessories for the DigiSpeed to make it easier to
install. Have a look through my updated web page at;
http://people.smartchat.net.au/~homann/index.html

There is a MiniDin breakout board that allows access to the pins on the
MiniDin connector via a screw terminal block. It also has 2 right angle
brackets (with screws) to allow mounting to the front or rear panel of your
CNC controller box.

Also available are 1.8 metre 6 Pin mini din Male to Male cables to connect
between the DigiSpeed Controller and the Breakout board.

There is also a 1.8 meter male to male 3.5mm Stereo Cable that can be used
to connect your spindle index pulse sensor to the DigiSpeed controller. The
index pulse signal will then be available at the screw connector block on
the breakout board.

I have started the User manual but it has a bit to go. I should have it
finished in a week.

Email me if you have any questions.

Cheers,


Peter Homann
mailto:Peter.Homann@...
Adacel Technologies Limited,
250 Bay St, BRIGHTON, 3186, AUSTRALIA
http://www.adacel.com
Telephone +61 (3) 8530 7777, Facsimile +61 (3) 9596 2960
Mobile 0421-601 665


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