524,061 active members*
2,129 visitors online*
Register for free
Login

Search:

Type: Posts; User: Larken

Page 1 of 17 1 2 3 4

Search: Search took 0.01 seconds.

  1. New High resolution Step 2 Linear drive, now available .

    Hi
    I've updated the S2L to a 12 bit Dac for smoother control and no dither. The original used an 8 bit Dac that gave a resolution of +- 128 levels of 0-10V output. I'm now using a 12 bit serial...
  2. Replies
    0
    Views
    113

    Prototype Ventilator running a Pic 18F

    Here is a prototype medical ventilator i built , in 1st 2 weeks of april 2020

    https://www.youtube.com/watch?v=2TprOgkN1Dk&t=0s

    Part of the display screen was based on my Vipertune since i...
  3. Replies
    1
    Views
    477

    Re: Viper 200 MPG Step Issue

    What controller are you using ?
  4. 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
    ...
  5. Replies
    4
    Views
    305

    Re: Spindle will not start

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

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

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

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

    by Larken
    Replies
    1
    Views
    390

    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...
  9. Replies
    4
    Views
    473

    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...
  10. Replies
    6
    Views
    2,204

    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
  11. Replies
    4
    Views
    473

    Re: Will step2linear work for my machine?!

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

    Larry K
  12. 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
  13. Thread: XZero CNC

    by Larken
    Replies
    4,490
    Views
    15,804

    Re: XZero CNC

    Thats too bad to hear about George.
    Hows he doing ?.. How old is he btw ?
  14. Replies
    18
    Views
    2,096

    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....
  15. Replies
    18
    Views
    2,096

    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...
  16. Replies
    18
    Views
    2,096

    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...
  17. 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
  18. Replies
    1
    Views
    555

    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
  19. Replies
    10
    Views
    900

    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...
  20. Replies
    10
    Views
    900

    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...
  21. Replies
    2
    Views
    606

    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 ......
  22. Replies
    10
    Views
    900

    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...
  23. Replies
    8
    Views
    1,086

    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...
  24. Replies
    8
    Views
    1,086

    Re: Step/direction to analogue converter

    Step2Linear

    ViperServo
  25. Thread: Step2Linear

    by Larken
    Replies
    34
    Views
    6,075

    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.
    ...
  26. Thread: Step2Linear

    by Larken
    Replies
    34
    Views
    6,075

    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...
  27. Thread: Step2Linear

    by Larken
    Replies
    34
    Views
    6,075

    Re: Step2Linear

    did you try pulling the reset low ?
    are these inputs normally high ? maybe the limits should be pulled low.
  28. Replies
    7
    Views
    1,750

    Re: Recomended encoder

    I have my own Bx7 bob on my Viper Servo motor products site,
    But also I recommend
    PMDX.COM - Products for CNC and motion control applications

    Larry K
  29. Thread: Step2Linear

    by Larken
    Replies
    34
    Views
    6,075

    Re: Step2Linear

    double check the polatity of your limit and inhibit inputs.

    www.glentek.com/glentek/admin/documents/sma7215manreva.pdf

    one thing that i forgot to add on the current s2l firmware is a...
  30. Thread: Step2Linear

    by Larken
    Replies
    34
    Views
    6,075

    Re: Step2Linear

    Do you have the S2L connected ?
    Is this a retrofit or the complete stock machine controller ?
Results 1 to 30 of 500
Page 1 of 17 1 2 3 4