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CONNECTING NEMA MOTOR TO BLACK BOX

Discussion in 'Controller Boards' started by mlowka, Jul 11, 2020.

  1. mlowka

    mlowka New
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    I've indentified the motor coils, how do I connect them to black box? Do I now just mind to keep the correct pairs? Does A+A- B+B- make any difference?
     
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Doesnt make a difference as long as a pair of wires belonging to one coil is on the two A's, and the other coil on the B's
     
  3. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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  4. mlowka

    mlowka New
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    Thanks. One more thing- after connecting the wires, machine works well, only in some places the edges became rough as in the photo. Does it mean I didn't connect the back box and the wires correctly? (I didn't change the settings of the machine) I also noticed that the rough edges are left every time the machine goes in a particular directions. This doesn't apply to the cut element.
     

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    #4 mlowka, Jul 11, 2020
    Last edited: Jul 11, 2020
  5. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Thats not wiring. Backlash, something loose mechanically, or too aggressive cut strategy leading to deflection. Use a finishing pass
     
  6. mlowka

    mlowka New
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    Ok :) So I've tighten up x axis screws ( marked one) and its much better now but there is some loose left as in the film attached- is that ok or should I do something more?. I've also tightened the y axis. The settings worked fine up until now so it's not that. As for the finishing pass- I use open builds CAM and easel, is there a way to do it there?
     

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  7. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Easy hack, lie about endmill diameter in first pass. Pretend is half a mm bigger than it is. That creates an oversized pass. Then run a inside/outside cut at actual endmi diameter to cleanup.
     
  8. mlowka

    mlowka New
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    I'll try that- thank you so much!
     
  9. mlowka

    mlowka New
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    The endmill diameter hack works :) But another thing came out- I cut letters- so I need the element I'm taking out to be smooth. All my passes are outside (inside pass took off additional material equal to endmill diameter from the letters) and the finishing pass smoothes the edges that are left in the board. Is there a way to reverse that? To have the element I'm taking out be smoothed by finishing pass?
     
  10. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    If i understand the problem correctly:
    Select insides and outsides together into one outside cut job, and make sure Union under advanced is enabled. That automatically handles the insides of O's and A's etc
     
  11. mlowka

    mlowka New
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    "make sure Union under advanced is enabled" - where do I find it?
     
  12. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    While editing the toolpath, click Advanced
     
  13. mlowka

    mlowka New
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    hmm... in openbuilds cam or control
     
  14. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    CAM. We dont edit toolpaths in CONTROL (;
     
  15. mlowka

    mlowka New
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    ;) this is my advanced options. I dont see Union :p
     

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  16. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Geometry Merge :) Same thing, sorry :)
     
  17. mlowka

    mlowka New
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    I've applied all the suggestions :) The finishing pass smoothes perfectly all edges except the letter :) The material left is perfect- I love it, and want to make my letters this way :) TO make it more clear I attach photos :) What I need is the letter I take off the board.
     

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  18. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Lie about the bit being smaller? Or you are selecting the wrong side of the cut, CAD setup, etc. inside vs outside etc. Experiment away :)
     

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