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Type: Posts; User: Larken

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  1. Replies
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    Re: Viper 200 MPG Step Issue

    What controller are you using ?
  2. Wanted Feedback of Hurricane Black box Vacuum System

    Anyone have experience with the Hurricane Black box Vacuum System ?
    How reliable is it and how well does it work on a 4' x 8' router ?

    Im debating either that or a 10-15 ho regen blower
    ...
  3. Replies
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    Re: Spindle will not start

    Maybe contact Larken ?
  4. Re: larken spares urgently needed - are they still trading?

    Really...Why don't you just Contact Larken ?

    Larry kenny
    Larken@storm.ca
    Larken Automation
  5. Re: NEW: Setup and Tuning video for Viper 200 , by Larken

    Please pin this to the top
  6. Thread: Viper 200 issue

    by Larken
    Replies
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    335

    Re: Viper 200 issue

    I just posted a tuning video.
    What are the motor ratings. contin stall current and what PS voltage are you running ?
    Also what frame size is the motor. ?

    The jumpers on the V200H are just for...
  7. Replies
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    Re: Will step2linear work for my machine?!

    No, it doesn't use the index pulse to close the loop, but you may be able to opto-couple it back to the motion controller to use in the homing.
    But the encoder wires and ground should only go to...
  8. Replies
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    Sticky: Re: Viper Tune is ready !!! Finally

    Here is a Video on setting up the Viper 200 and Tuning it.

    https://youtu.be/zp4pGgEUarE

    Larry K
  9. Replies
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    Re: Will step2linear work for my machine?!

    Yes, it should work with that amplifier.
    Is there good differential encoders on the machine ?

    Larry K
  10. NEW: Setup and Tuning video for Viper 200 , by Larken

    Hi
    Here is a Video for setting up and Tuning the Viper 200 using ViperTune.

    https://youtu.be/zp4pGgEUarE

    Have fun !!

    Larry kenny
  11. Thread: XZero CNC

    by Larken
    Replies
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    8,337

    Re: XZero CNC

    Thats too bad to hear about George.
    Hows he doing ?.. How old is he btw ?
  12. Replies
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    Re: L6474 or powerStep01 drivers

    The spi update is to set the 50% idle current when the motor sits or more than a second. But repeated sending serial with no error correction could eventualy lead to an error in a noisy environment....
  13. Replies
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    Re: L6474 or powerStep01 drivers

    Thanks
    Here is my little 4 axis motherboard with plugable L6474 toasters.
    The problem is probably the mosfets in the output bridge don't have a low enough on resistance .

    The other thing i...
  14. Replies
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    1,765

    Re: L6474 or powerStep01 drivers

    Yes, i designed a complete L6474 muti axis system for my small routers, but find they run extremely hot. Without a heat sink ( at 1.5a/phase ) they will reach 120C in less than 60 seconds then trip...
  15. Re: Just developed a problem with viper 200s, growling/strainning during moves

    Did you run the pulse test program in the mach 3 to see how steady the pulse stream is ?

    Larry
  16. Replies
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    Re: Viper 200 Error deviations

    What are your tuning parameters... I don't see the videos btw
    Maybe email me at Larken@storm.ca

    Larry
  17. Replies
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    Re: Servo only holding/moving in one direction

    Sorry Roger ! ( i read ... Whats the difference between Chinese and American vendors ? ... not.. Thats the difference ,lol )

    I actually don't come here that often as i do most tech support...
  18. Replies
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    Re: Servo only holding/moving in one direction

    < At the risk of repeating myself - that's the difference between Chinese and American vendors.>

    Seriously , lol ? China has designed nothing.. they just copy and pirate other countries...
  19. Replies
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    Re: 2 Thumbs Up to Larken

    Thanks.
    Sometimes i'm slow, but its mostly because i now build on demand. There isn't enough money anymore to buy parts in bulk.
    But i just got an other big batch of PCB's made in Quebec ......
  20. Replies
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    Re: Servo only holding/moving in one direction

    If its only holding in one direction , its a mosfet or a mosfet driver.
    Just send it back and i will repair it for $25-35. Thats not a current sensing resistor. Thats the incoming voltage...
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    Re: Step/direction to analogue converter

    Triplet
    No problem. if you think $89 per axis on a CNC machine s "not economical " to save your servodrive ..omg ;)

    ( btw..I make about $40 profit on one on those.. not counting the couple...
  22. Replies
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    Re: Step/direction to analogue converter

    Step2Linear

    ViperServo
  23. Thread: Step2Linear

    by Larken
    Replies
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    5,751

    Re: Step2Linear

    Please post all the settings, Kp Ki Kd Looptime ....

    >>Why i cant change the pwm clip, soft range and hardtrip ?
    The S2L is not pwm, those settings apply only to the Viper 60/200/250 drive.
    ...
  24. Thread: Step2Linear

    by Larken
    Replies
    34
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    5,751

    Re: Step2Linear

    Not clear on what your asking ??
    Its seems to be basically working. Your gains are very low so you can increase them to reduce error.

    I'm assuming its excersing from vipertune.
    Are you...
  25. Thread: Step2Linear

    by Larken
    Replies
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    5,751

    Re: Step2Linear

    did you try pulling the reset low ?
    are these inputs normally high ? maybe the limits should be pulled low.
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