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BlackBox

Discussion in 'Other Builds' started by Mark Carew, Feb 22, 2019.

  1. Mark Carew

    Mark Carew OpenBuilds Team
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    Mark Carew published a new build:

    Read more about this build...
     
  2. joe williams

    joe williams Well-Known
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    Well, ...it's official now!:thumbsup:
     
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  3. Ariel Yahni

    Ariel Yahni OpenBuilds Team
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    Its has landed, wont sleep until i get my hands on ones of those !!!! Congrats OpenBuilds Team
     
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  4. joe williams

    joe williams Well-Known
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    So I assume the first few "BlackBoxes" went into making these to keep up with the shipping demand for these things:

    robotic-automation.png
     
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  5. Metalguru

    Metalguru Veteran
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    Quick question: Does this thing run GRBL? Is it compatible with UGS, GRBL Panel, etc?

    MG
     
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  6. Mark Carew

    Mark Carew OpenBuilds Team
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    lol this is so awesome guys!
    @Metalguru Yes sir!
     
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  7. Tarjei Knapstad

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    Looks nice on the surface, but Black box indeed. There's not nearly enough specifications to make an informed decision on whether to buy one of these.

    Which stepper drivers are used? What hardware/software is the controller built on?
     
  8. Mark Carew

    Mark Carew OpenBuilds Team
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  9. Scotty Orr

    Scotty Orr Journeyman
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    I see you removed the IOT power relay requirement from the docs. Will you be offering this in the future?
     
  10. Chillimonster

    Chillimonster Well-Known
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    Ordered :)

    Just to have a play (needed to get An addition board for when I’m playing with new builds etc)
     
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  11. Mark Carew

    Mark Carew OpenBuilds Team
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  12. Paul Stoller

    Paul Stoller Well-Known
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    I'm still a couple of months off from being able to start/re-start my project, do you expect any availability issues, if the first run sells out quickly how much time would we be looking at for a restock? Also, what's up with the stepper motors, will the store be restocking those soon?
     
  13. Mark Carew

    Mark Carew OpenBuilds Team
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    Hello @Paul Stoller We have everything in place for quick turnarounds on the boards through our relation with CopperPour pcbs
    On the motors, we are working hard to restock them as quickly as possible and the ETA looks to be about a week.
     
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  14. Metalguru

    Metalguru Veteran
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    Can you upgrade the firmware through the USB port?

    Is the USB port isolated?

    MG
     
  15. Paul Stoller

    Paul Stoller Well-Known
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    Thanks Mark!
     
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  16. Mark Carew

    Mark Carew OpenBuilds Team
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    @Metalguru yes you can update the firmware through the USB on the isolated USB I will need to check for you and get back
     
  17. Metalguru

    Metalguru Veteran
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    Thanks. So far looks like a nice job.

    MG
     
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  18. GrayUK

    GrayUK Openbuilds Team Elder
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    And here's me thinking I was gonna see a Unicorn and a Dragon BEFORE I saw a Black Box!!! :D:D
    The World is full of wonders and surprises. :thumbsup::thumbsup:
     
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  19. Scotty Orr

    Scotty Orr Journeyman
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    Isn't Black Box both? (Unicorn and dragon...)
     
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  20. Paul Stoller

    Paul Stoller Well-Known
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    Dragicorn?
     
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  21. Mark Carew

    Mark Carew OpenBuilds Team
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    @GrayUK lol same man! Its been a long but amazing adventure that has finally come to light. We have learned so much along the way that will help OpenBuilds reach new heights.
     
  22. Mark Carew

    Mark Carew OpenBuilds Team
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    There's more to the BlackBox story. . . . but more on that at another time ;)
     
  23. GrayUK

    GrayUK Openbuilds Team Elder
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    The Black Dragicorn :eek::jawdrop::eek:
     
  24. Tarjei Knapstad

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    Thanks Mark, I missed that. Still doesn't say which stepper driver IC's are used though :) Maybe you could add a link to the schematics in the docs so that they are easier to find.
     
  25. Mark Carew

    Mark Carew OpenBuilds Team
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    Thats the one! :D
     
  26. Tarjei Knapstad

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    Seems to be isolated according to the schematics mentioned above.
     
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  27. Metalguru

    Metalguru Veteran
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    How do you adjust the motor current? I mean I read the documentation, and all it says is "Adjust the current until you can no longer stall the motor under normal operating conditions." That's pretty lame. Are there test points for Vref so you can set the current to a specific value?

    Do the driver chips supply partial current when stopped to lock the motors in place? I see the Enable line is connected, so I assume it does, but what is the lock current setting?

    Also, the schematic does not list the Stepper Driver chip part #. Can you tell us or is it a secret?

    MG
     
  28. Mark Carew

    Mark Carew OpenBuilds Team
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    Thats a good idea I will add it to the list. There is going to be a lot of feedback along the way with a new release like this that we can weigh out and put into action. These are Toshiba drivers
     
  29. Glenn Weston

    Glenn Weston Journeyman
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    Thanks Guys, I have been waiting for this controller for some time.

    Will be using it to finish off my Laser build... Dumping the CNC Shield that I was going to use, it was not the current version anyhow.

    I usually wait before I jump into things but Openbuilds have never let me down, so I am purchasing this immediately and going out on a limb with a brand new product, I have every confidence that the Openbuilds team has done extensive testing, I have just placed my order !!

    Cheers Glenn.
     
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  30. Metalguru

    Metalguru Veteran
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    Hi Tarjei

    I looked through the schematics and I don't think there is any isolation. There is a section labelled V-USB Isolator but it's just a switch to isolate the USB +5V from the controller +5v. The serial to USB chip is just a standard FT232 which is not isolated. Isolated USB is useful to eliminate ground loops between your computer and the CNC machine. I always use stepper drivers with optically isolated control signals, and never connect the Arduino circuit ground to the motor power supply ground. The 5V supply switching regulator on the schematic is just a single ended flyback converter, so is not isolated, and it appears the "brain" ground is connected to the "Muscle" ground so there is no circuit isolation.

    All this is probably OK if you use a laptop for control, but a desktop may present problems.

    MG
     
    #30 Metalguru, Feb 22, 2019
    Last edited: Feb 23, 2019

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