newbie looking for spindle and VFD advice 5hp ish?


Results 1 to 4 of 4

Thread: newbie looking for spindle and VFD advice 5hp ish?

  1. #1

    Default newbie looking for spindle and VFD advice 5hp ish?

    Hello all first time poster

    I recently salvaged a Techno LC+ CNC 4896 from "the scrap yard" I am in the process of trying to bring it back to life as a router (I believe it was used for some other purpose as its in very good condition) unfortunately for whatever purpose they used it for they removed the spindle and its components. Personally I have never built a cnc before and though this is not building one I would appreciate some advice on spindles and VFDs. This will be used as a personal "hobby" machine so no production or extreme use cases. I would like to be able to cut plywood's, hardwoods and aluminum. I would also like to be able to run the machine for potentially extended jobs at a time (run for 6-8 hours at a time on occasion) my initial thought was keep it simple and just do an air cooled spindle but after reading a bit into it I question if going water-cooled maybe the way to go even if it add a bit more complexity and maintenance. I am not looking to throw a ton of money into this machine since it will be a "hobby" machine but I would say my budget for a spindle and VFD would be about $400-$900 does this seem reasonable? I also have easy access to 220v should the prove to be the better option.

    Thank you!

    Similar Threads:


  2. #2
    Community Moderator ger21's Avatar
    Join Date
    Mar 2003
    Location
    Shelby Township
    Posts
    35136
    Downloads
    1
    Uploads
    0

    Default Re: newbie looking for spindle and VFD advice 5hp ish?

    There's nothing wrong with air cooled spindles. Most $150,000 industrial routers use air cooled spindles.
    Your budget puts you in the cheap Chinese spindle range. Like these.
    https://www.ebay.com/itm/Square-4KW-...UAAOSwCCddN~dN

    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)


  3. #3

    Default Re: newbie looking for spindle and VFD advice 5hp ish?

    Hi Gerry
    What sort of prince range would I be looking at for a decent quality spindle? My concern is I would be retrofitting a seemingly nice and rigid machine with non quality spindle



  4. #4
    Member
    Join Date
    Apr 2004
    Location
    Oakland CA USA
    Posts
    5135
    Downloads
    0
    Uploads
    0

    Default Re: newbie looking for spindle and VFD advice 5hp ish?

    Perske is a good brand. New Perske spindles start at around $2500; a 5hp would be more like $4500: https://www.cncpd.com/product/perske...spindle-motor/ Figure another $500 or so for a US or European-made VFD. Prepare to spend more for an oversized VFD if you need to convert from single-phase 220; you need to over-rate it in that case.

    Andrew Werby
    https://computersculpture.com/


  5. #5

    Default Re: newbie looking for spindle and VFD advice 5hp ish?

    Hi,
    VFD's draw a surprising amount of current, much more than you might think. As such, a typical domestic 230VAC supply is about maxed at 3hp or about 2.2kW

    You can get more from a single phase supply but you'll need an electrician to (probably) fit heavier wires and a heavier circuit breaker/fuse. Most VFD manufacturers recommend,
    especially for heavily loaded single phase supplies, an input line reactor. It rather tames the current draw of a VFD and markedly reduces radiated electromagnetic interference.

    Craig



Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

newbie looking for spindle and VFD advice 5hp ish?

newbie looking for spindle and VFD advice 5hp ish?

newbie looking for spindle and VFD advice 5hp ish?