512,818 active members
3,105 visitors online
Register for free
Login

Search:

Type: Posts; User: Al_The_Man

Page 1 of 20 1 2 3 4

Search: Search took 0.08 seconds.

  1. Re: What balls should I be using to re-ball my ballscrew?

    I don't recall, I just asked for steel ball bearings!
    It wasn't a production M/C so I figured steel would be fine.
    Al.
  2. Re: What balls should I be using to re-ball my ballscrew?

    A good ball screw has a preload system which essentially eliminates backlash, the ones I have re-loaded had every other ball slightly smaller, in order to reduce 'jamming'.
    I got the replacements...
  3. Replies
    14
    Views
    31

    Re: Servo motor setup

    A lot depends on what controller you are using?
    Al.
  4. Re: Electrolytic Capacitor Series Connection

    Series will cut the value not add to it.
    You need to add caps in parallel to add.
    Al.
  5. Re: Fanuc Servo drive cooling fan. What sensor signal?

    The fans with fail detection I have come across have a hall sensor to detect blade rotation, If the sensor has 3 wires, In some case you can fool it by connecting the output to the high side.
    Al.
  6. Replies
    3
    Views
    22

    Re: 10 years to late

    What details of motors drives controller etc?
    Al.
  7. Re: How do you guys, price your retrofit services ? What traps to avoid ?

    Just as another side comment on this question, the systems such as Galil, Acroloop, Kmotion etc, because these systems close the loop in the controller, they are able to take advantage of simple...
  8. Re: How do you guys, price your retrofit services ? What traps to avoid ?

    True, most of my work came from word of mouth.
    Al.
  9. Re: How do you guys, price your retrofit services ? What traps to avoid ?

    Yes, just uses it as a HMI.
    Al.
  10. Re: How do you guys, price your retrofit services ? What traps to avoid ?

    If I was still in it to the same degree, I think I would be looking at Dynomotion/Kanalog They have a forum site here and support looks very good.
    I was always surprised that Galil did not come out...
  11. Re: How do you guys, price your retrofit services ? What traps to avoid ?

    For my part, the Mitsubishi is excellent but not cheap, a large 3 axis mill would be around at least $10K plus for the control alone, ~ one week on site labour then a couple of days documentation....
  12. Re: How do you guys, price your retrofit services ? What traps to avoid ?

    Another time consuming job was writing the PLC ladder, especially if a relatively complex tool changer was in place etc.. All this has to be allowed for.
    After the job, then the required CAD...
  13. Re: How do you guys, price your retrofit services ? What traps to avoid ?

    Seems a little steep to supply a serial cable and there is terminal S/W out there free for RS232.
    Sounds like a Fanuc service charge!
    I liked to do much of the research on my own time, then set a...
  14. Re: How do you guys, price your retrofit services ? What traps to avoid ?

    I was in the retro fit business since the 80's, started out with Fanuc, but found them hard to deal with, I eventually settled for Mitsubishi, a great company.
    For the small guy with the smaller...
  15. Replies
    17
    Views
    73

    Re: WHAT IS THIS?!?!?

    Every job there are parts left over.
    Sweep them around 'til they 'disappear'!.
    Al.
  16. Replies
    8
    Views
    60

    Re: Reducing voltage from power supply

    I have modified a few toroidals over time, also added a few with overwinds to produce a small aux supply etc.
    The transformer is rated in Va, so as long as the value is kept in mind, it is fairly...
  17. Replies
    8
    Views
    60

    Re: Reducing voltage from power supply

    If you did have to do it, just take a few turns off the secondary, usually around 2 turns/volt.
    Very easy on a toroidal transformer
    Al.
  18. Re: Mori Seiki SL1 Retrofit Hydraulic Solenoid Wiring

    That is a pilot operated valve, so you won't see any response until hydraulic pump is running, do you have this?
    Al.
  19. Re: can you use a bigger drive for a ac servo

    A larger drive than the motor should be fine, generally you can set the current limit to whatever the motor rating is.
    Al.
  20. Replies
    20
    Views
    116

    Re: Treadmill motor torque

    VFD's under a certain size are available for 240v 1phase supply, so any double breaker of suitable rating will work, the VFD produces variable frequency, 3 phase output for the 3 phase motor....
  21. Replies
    20
    Views
    116

    Re: Treadmill motor torque

    Your limit with the 90v motor is around 120vdc.
    Al.
  22. Replies
    20
    Views
    116

    Re: Treadmill motor torque

    The VFD solution would definitely work, but I gathered that the OP want to make use of his T.M. DC motor, The use of one of the KB DC motor drives would likely solve the problem, the Triac control...
  23. Replies
    20
    Views
    116

    Re: Treadmill motor torque

    The ones I have put together, only the Mosfet H-bridge is live to mains, the low voltage is isolated via a small LV control transformer for the control circuit and opto isolators between control and...
  24. Re: Manual control of MC-2100 treadmill motor controller?

    Just started work on a Start/Stop/FWD/REV with LCD RPM indicator for the MC2100.
    Microchip based.
    Al.
  25. Replies
    20
    Views
    116

    Re: Treadmill motor torque

    The MC-60 is also a triac controlled bridge, except it also includes current limit/ ramp up features etc of which the el-cheapo versions do not..
    The better versions are PWM such as MC2100 but...
Results 1 to 25 of 500
Page 1 of 20 1 2 3 4