584,846 active members*
4,532 visitors online*
Register for free
Login

Search:

Type: Posts; User: sparkness

Page 1 of 6 1 2 3 4

Search: Search took 0.00 seconds.

  1. Replies
    34
    Views
    2,770

    Re: Benchtop PRO 2436 Build

    working great some minor crashes and bent tools!
  2. Re: How to clean dried coolant, oil, and chips?

    I have used oven cleaner on a super gacked up old sheldon I bought
  3. Replies
    3
    Views
    1,192

    Re: Stepper Motors

    Not sure, check the driver and make sure it puts out enough current for the replacement. Why do you think the stepper is bad? Steppers are very simple and don't have many problems. you can measure...
  4. Replies
    14
    Views
    1,757

    Re: Gantry out of Square

    not sure what can be done in this instance other than syncing the motors with a timing belt
  5. Replies
    3
    Views
    318

    Re: Touch-Off troubles

    please give more info , your control etc.
  6. Re: edge finding with chinese spindle (6000 rpm min)

    I only run at low speed for a very short time to edge find .Get within a thou, spindle never gets warm. I use this mainly when I put the vise on the router table and set a G55. I will look at the...
  7. Re: edge finding with chinese spindle (6000 rpm min)

    I have a 1.5kw air cooled spindle and I run at 2000 rpm no problem with a 3/8 edge finder
  8. Replies
    3
    Views
    404

    Re: Wiring of stepper controllers

    the ESS documentation states "The ESS relies on the breakout board for isolation " and "The ESS has drivers that are capable of driving opto-isolators directly" thru the 74ACT541 chip as john shows.
  9. Replies
    3
    Views
    404

    Re: Wiring of stepper controllers

    that can work that way it's called common anode and it may work common cathode . you can wire your breakout board to connect either way .Do you have a pic of the drive?
  10. Replies
    2
    Views
    1,005

    Re: HOMEING ..Starting point...

    Mount your aluminum stock on the table anywhere, I will assume that x,y 0,0 is the bottom left corner of the toolpath you want to cut . Now you will move the cutter over your stock at the bottom...
  11. Replies
    4
    Views
    5,456

    Re: What is a CNC Post Processor?

    google cnc post processor
  12. Re: 10hp Huanyang VFD to run 7.5hp spindle from one phase 220v outlet

    Goemon in his original post stated he has a 7.5HP spindle. "My spindle is a 7.5hp 24,000rpm 3 phase unit. The label states 18 amps s1 although an online vendor lists it as 20.5amps"

    7.5HP x 746=...
  13. Replies
    8
    Views
    3,004

    Re: X Rail Material

    I was engraving some 3/8 plexi and it varies .010 in 12 inches measured in different places.
  14. Re: 10hp Huanyang VFD to run 7.5hp spindle from one phase 220v outlet

    get your self an AC clamp meter, there not expensive and you will get some answers
  15. Replies
    19
    Views
    1,052

    Re: DIY Electronics vs PNP vs self sourcing

    And for Power supplies I use and like Mean Well. limit switches I use N/O cheap proximity sensors from ebay
  16. Replies
    19
    Views
    1,052

    Re: DIY Electronics vs PNP vs self sourcing

    I chose leadshine as they are a real brand. Their products are copied, cloned and sold on ebay , so far no issues, the drives appear to be well made, good documentation. the first drive I purchased...
  17. Replies
    19
    Views
    1,052

    Re: DIY Electronics vs PNP vs self sourcing

    275 IPM my power supply set at 52v
  18. Replies
    19
    Views
    1,052

    Re: DIY Electronics vs PNP vs self sourcing

    On my Benchtop PRO 2436 I used Leadhine 86HS45D and Leadhine MX4660
  19. Replies
    67
    Views
    8,538

    Re: Proximity Sensor Wiring Issue? Help needed.

    you should see 12.xx on the meter with red meter probe connected to brown and black meter probe connected to blue wires of the sensor . when the axis is off the home position and led lit you...
  20. Replies
    67
    Views
    8,538

    Re: Proximity Sensor Wiring Issue? Help needed.

    I would test with a meter to verify as that seems to be your original concern. I think on your bob both 12v neg and 5v neg are tied together. On boards that I use I keep them isolated
  21. Replies
    67
    Views
    8,538

    Re: Proximity Sensor Wiring Issue? Help needed.

    I mistakenly used the word ground . I meant the 12vdc negative and is called GND on bob.
  22. Replies
    67
    Views
    8,538

    Re: Proximity Sensor Wiring Issue? Help needed.

    connect n/o switches in parallel. Yes you are correct you just tell mach3 that you have limits using the same pins as the home switches, and A home switch on its own pin so you can square
  23. Replies
    67
    Views
    8,538

    Re: Proximity Sensor Wiring Issue? Help needed.

    its fine the input circuit will tolerate this as the sensor will sink current but not source current. Jim I assume that your sensor Black wire is connected to the bob input pin (12) is this the way...
  24. Replies
    67
    Views
    8,538

    Re: Proximity Sensor Wiring Issue? Help needed.

    I just made a test setup using an npn sensor and 24v it can only pass 2.3ma so its resistance is about 10k . crap, just blew the fuse again in my meter, seems like I do this all the time, forget to...
  25. Replies
    67
    Views
    8,538

    Re: Proximity Sensor Wiring Issue? Help needed.

    not all of the bobs are created equal, one Chinese mfg copies another and gets it wrong and they all look alike. but we buy em cause they look good and are cheap.Then you need to be able to reverse...
  26. Replies
    67
    Views
    8,538

    Re: Proximity Sensor Wiring Issue? Help needed.

    it can provide additional output and clean up the signal , it is a simple amplifier . it cannot isolate like an opto
  27. Replies
    67
    Views
    8,538

    Re: Proximity Sensor Wiring Issue? Help needed.

    it means your input signal connects to a buffer before it goes to the parallel port .non buffered means you connect directly you the parallel port. the buffer in your case is a the 74hxx chip which...
  28. Replies
    67
    Views
    8,538

    Re: Proximity Sensor Wiring Issue? Help needed.

    some of those ebay Chinese BOB's have opto inputs
  29. Replies
    67
    Views
    8,538

    Re: Proximity Sensor Wiring Issue? Help needed.

    that looks correct now, many of the proximity sensors wire this way. Brown to +V Blue to -V or Gnd. Black is the switched output
  30. Replies
    67
    Views
    8,538

    Re: Proximity Sensor Wiring Issue? Help needed.

    that looks correct now, many of the proximity sensors wire this way. Brown to +V Blue to -V or Gnd. Black is the switched output
Results 1 to 30 of 160
Page 1 of 6 1 2 3 4