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Thread: Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1

  1. #25
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    Default Re: Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1

    I had to change out the Denford tool post to a AXA style quick change tool post. Now I can follow the 15LSlant-Pro videos for tool offsets and set-ups. I am still looking for a suitable auto tool changer to modify for this lathe. Initial test cuts look promising. Initial diameter 0.3312 wanted 0.3151( Yaskawa SGMP motor shaft diameter), measured with micrometer 0.3153, delta = 0.0002.

    NovaTurn test cut



    AXA Style Quick Change Tool Post


    PathPilot Screen Initial Diameter 0.3312 reduce to 0.3151


    Micrometer reading 0.3153, Delta = 0.0002


    Pulley on shaft



    iBOB2 + GizmoSphere


    Iron-Man

    Attached Thumbnails Attached Thumbnails Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1-quick-change-tool-post800x600-jpg   Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1-pathpilot-reading800x600-jpg   Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1-micrometer800x600-jpg   Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1-yaskawa-pulley800x600-jpg  

    Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1-ibob-gizmo-1024x768-jpg  
    Last edited by Iron-Man; 02-12-2016 at 09:43 PM. Reason: iBOB2


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    Default Re: Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1

    Sample test part. Will post more video later.

    Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1-tool-holder-2016-03-20-11-58-a

    Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1-part1-2016-03-20-jpg

    Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1-tool-holder-turret-2016-03-20-11-a

    Iron-Man



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    Default Re: Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1

    Is that an Emco turret that you will adapt to the Denford? I'm following this build with interest as well as Smokediver's Emco thread.

    I have a PC turn 55 (running on WinNC) and am about to take delivery of a 120 that will need a retrofit as the electronics are inoperable at the time and may not be salvageable. I have a Tormach mill too, so I would love to get them both working with PathPilot but know little about linuxcnc and its underpinnings.

    Would you be willing to share what you have learned about configuring Pathpilot lathe for other machines? I am super comfortable with the electronics and mechanical side of things, it is the software configuration on Linux that scares me.

    Keep up the great work!



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    Default Re: Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1

    Quote Originally Posted by jcposada View Post
    Is that an Emco turret that you will adapt to the Denford? I'm following this build with interest as well as Smokediver's Emco thread.

    I have a PC turn 55 (running on WinNC) and am about to take delivery of a 120 that will need a retrofit as the electronics are inoperable at the time and may not be salvageable. I have a Tormach mill too, so I would love to get them both working with PathPilot but know little about linuxcnc and its underpinnings.

    Would you be willing to share what you have learned about configuring Pathpilot lathe for other machines? I am super comfortable with the electronics and mechanical side of things, it is the software configuration on Linux that scares me.

    Keep up the great work!

    Yes, it is a Emco turret. I am also doing the refit for Smokediver. Let me know if you want to upgrade to servos.

    Iron-Man



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    Default Re: Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1

    Quote Originally Posted by Iron-Man View Post
    Yes, it is a Emco turret. I am also doing the refit for Smokediver. Let me know if you want to upgrade to servos.

    Iron-Man
    For the big one, yes I think I will have to move to servos. For the little one, not unless that is the only way out. I believe the steppers and drivers that are currently in place can be made to work with a mesa card based on some threads I have seen on the linuxcnc forums.



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    Default Re: Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1

    As promised, a short video of referencing the X and Z axes.



    Iron-Man



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    Default Re: Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1

    Denford NovaTurn refit with AC servos.
    1/4 20 thread test with sample parts.


    Iron-Man



  8. #32
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    Default Re: Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1

    Nice job.

    I see you are running Path Pilot. Do you intend to have that tool changer front or rear mounted? If front mounted, do you see any issue setting up Path Pilot's tool page or format?

    I am just starting to learn LinuxCnc. I would enjoy using that kind of set up. There is plenty to learn there before that happens ;-)

    A lazy man does it twice.


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    Default Re: Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1

    Quote Originally Posted by Fastest1 View Post
    Nice job.

    I see you are running Path Pilot. Do you intend to have that tool changer front or rear mounted? If front mounted, do you see any issue setting up Path Pilot's tool page or format?

    I am just starting to learn LinuxCnc. I would enjoy using that kind of set up. There is plenty to learn there before that happens ;-)
    Thanks Fastest1

    I am looking at both options. Pathpilot uses a pwm signal to encode the tool number. I will be using a pic micro to decode this for a transparent interface to path pilot.

    Iron-Man



  10. #34
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    Default Re: Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1

    I started my conversion of a EMCO Tool Turret a few weeks ago.
    STATUS:

    EMCO Compact 55 Tool Changer modified with a AMT203 ABS Encoder with SPI interface.
    ARM LPC1768.
    The encoder interface is now working.
    Denford NovaTurn AC Servo Lathe used to make new encoder adapter.
    The set-up uses the existing tool changer board. I am in the process of designing new board to replace the EMCO, that will have its own motor driver.

    Next step is PathPilot interface to MESA 7i77.


    Iron-Man

    Attached Thumbnails Attached Thumbnails Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1-emco1-jpg   Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1-emco2-jpg   Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1-emco3-jpg   Denford NovaTurn Servo retrofit AMD Gizmosphere iBOB2 PCIe x1-emco4-jpg  



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