Thread: Starmill

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  1. #21
    i2i's Avatar
    Lives in Cardiff, United Kingdom. Last Activity: 23-12-2016 Has been a member for 7-8 years. Has a total post count of 693. Received thanks 30 times, giving thanks to others 0 times.
    Yes, you would need three of these circuits one for each drive, and no the breakout board does not give you this feature.

    It's a simple circuit that you can pop on a small piece of veroboard and connect it between the breakout board and Parker stepper drives.

  2. #22
    Componants for 4 boards orderered (1 spare) I'll get soldering when they arrive. Not quite sure how to connect up or what my next stage is though.

  3. #23
    i2i's Avatar
    Lives in Cardiff, United Kingdom. Last Activity: 23-12-2016 Has been a member for 7-8 years. Has a total post count of 693. Received thanks 30 times, giving thanks to others 0 times.
    here's a link for the drives you have.

    http://www.denfordata.com/bb/viewtop...1&hilit=parker

  4. #24
    i2i's Avatar
    Lives in Cardiff, United Kingdom. Last Activity: 23-12-2016 Has been a member for 7-8 years. Has a total post count of 693. Received thanks 30 times, giving thanks to others 0 times.
    the only sticking point may be the spindle drive, as you'll need to find out what varies the speed and what enables the spindle. Normally there is a relay (SGR, spindle go relay) that enables the spindle, and an isolated 0-10v board that varies the speed.

  5. #25
    I will have a look tommorow to see if I can identify which of these drives I have. Thanks for that. Phil

  6. #26
    Click image for larger version. 

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ID:	3606Click image for larger version. 

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ID:	3605I have hard a good look at the circuits in Click image for larger version. 

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ID:	3604the back of the Starmill. I can't be certain but out of the two types of drive on that Denford link you posted, the sd range looks closest.
    Click image for larger version. 

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ID:	3603 I have attached a few pics. On one of the motor boards- PKS Digiplan '87.

    The Spindle board is- Jay Electrical DC speed control JE124/1 seriClick image for larger version. 

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    The tool change psu 122ve.

    I have received parts from Maplin to make buffer but haven't got a clue where to connect up. Phil.Click image for larger version. 

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  7. #27
    i2i's Avatar
    Lives in Cardiff, United Kingdom. Last Activity: 23-12-2016 Has been a member for 7-8 years. Has a total post count of 693. Received thanks 30 times, giving thanks to others 0 times.
    have a look at the end of the stepper drive boards and it will state what type they are, probably a cd20 or sd 20. Page 23 of the digiplan drive manual shows the pinout for the end connector, and pins 26 and 28 of row c are the dir and clock positions. You'll need to find the wiring that feeds these signals into the drives and isolate them from the main board, then it's simply a matter of putting the buffer board between the breakout boards output and these points

  8. #28
    i2i's Avatar
    Lives in Cardiff, United Kingdom. Last Activity: 23-12-2016 Has been a member for 7-8 years. Has a total post count of 693. Received thanks 30 times, giving thanks to others 0 times.
    with the spindle board, do the red orange and brown wires go to a pot for varying the speed.

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