Welcome to Our Community

Some features disabled for guests. Register Today.

Jumbo Ox Plates

Discussion in 'CNC Mills/Routers' started by Jonny Norris, Apr 24, 2015.

  1. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95
    [​IMG]
    [​IMG]

    Okay not quite an ox. But an 8x4ft cutting area hiwin carriage, ball-screw and rack and a pinion, nema 34 and planetary gearbox design with twin 90x90 profiles for the x. These are 12mm water jet cut aluminium twin plates that will be spaced apart by 60mm square aluminum bar forming ballsrew and proximity switch mounts and increasing strength with aluminum channel reinforcement on the rear. Once complete i will release the designs to anyone interested, though i would love to post the build on here, im not sure it is an openbuild, though the gantry plates are ox inspired.
     
    ANDRESCAMPA, GrayUK and sgspenceley like this.
  2. sgspenceley

    sgspenceley Veteran
    Builder

    Joined:
    May 27, 2014
    Messages:
    249
    Likes Received:
    292
    Very nice Jonny, I look forward to watching the progress.

    I think many builders will be interested to see the build, even though it's not an OX. The build logs provide inspiration and learning, especially from someone who started his CNC adventure building an OX.
     
    #2 sgspenceley, Apr 24, 2015
    Last edited: Apr 24, 2015
  3. GrayUK

    GrayUK Openbuilds Team Elder
    Staff Member Moderator Builder

    Joined:
    May 5, 2014
    Messages:
    1,668
    Likes Received:
    627
    Publish! Publish!
    It's a CNC, bigger and beefier, but still a CNC.

    Gray
     
    sgspenceley likes this.
  4. DiggerJ

    DiggerJ Journeyman
    Builder

    Joined:
    Sep 2, 2014
    Messages:
    412
    Likes Received:
    109
    Yeah, What Gray said! Why wait...I'm getting a CNC chubby.
     
    sgspenceley likes this.
  5. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95
    Be more than happy to. :) However it may take a couple of months, due to the scary amount of money I've spent on it so far and now being flat broke.. Though I'm 2/3rd of the way there with materials. Just waiting on next pay day.

    But look forward to hearing your input over the course of the build.
     
    sgspenceley likes this.
  6. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95
    The base frame awaiting paint.

    [​IMG]

    Expect to finish in the next couple of weeks. :))
     
    GrayUK likes this.
  7. DiggerJ

    DiggerJ Journeyman
    Builder

    Joined:
    Sep 2, 2014
    Messages:
    412
    Likes Received:
    109
    I don't think it will be strong enough! :D
     
    Jonny Norris likes this.
  8. GrayUK

    GrayUK Openbuilds Team Elder
    Staff Member Moderator Builder

    Joined:
    May 5, 2014
    Messages:
    1,668
    Likes Received:
    627
    Yea! Definitely looks pretty flimsy from here.
    Perhaps you should beef it up a bit! :ROFL:

    Gray
     
    Jonny Norris likes this.
  9. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95
    You thinks so.. **** it. I was thinking of going for bigger box section :). Weight is starting to be a factor now. this one weighs around 180kg and the gantrys and heavy alumimum profiles frame are almost 300kg. Going to need a telehandler to move the thing.
     
    #9 Jonny Norris, May 8, 2015
    Last edited: May 8, 2015
    GrayUK likes this.
  10. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95
    Almost finished :) My biggest fear considering I'm £7000 in a hole with this was flex, but thankfully its solid as a rock :)

    [​IMG]
     
    #10 Jonny Norris, May 23, 2015
    Last edited: May 23, 2015
    mybuild14 and GrayUK like this.
  11. Joe Santarsiero

    Joe Santarsiero OB addict
    Staff Member Moderator Builder

    Joined:
    Oct 30, 2014
    Messages:
    902
    Likes Received:
    196
    what motors and drivers?
     
  12. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95
    nema 34 8nm for x, 2 x nema 23 with 20:1 planetary gearbox 45nm with 40 tooth pinion to bring speed back up for y+a, Nema 23 for z. Should have tons of torque :)

    ac dsp driver for x, dc dsp driver for y+a+z
     
    #12 Jonny Norris, May 23, 2015
    Last edited: May 23, 2015
  13. Joe Santarsiero

    Joe Santarsiero OB addict
    Staff Member Moderator Builder

    Joined:
    Oct 30, 2014
    Messages:
    902
    Likes Received:
    196
    nice. where did you source your rail? all that drilling and tapping sucks huh?
     
  14. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95
    Ty, cnc4you.co.uk is all hiwin. sourced all running gear from him, hes pretty good with advice also. Unless you mean the profiles which came form kjn. Tell me about it, I have no skin on my fingers and one of my arms feels bigger than the other lol
     
    #14 Jonny Norris, May 23, 2015
    Last edited: May 23, 2015
    Joe Santarsiero likes this.
  15. GrayUK

    GrayUK Openbuilds Team Elder
    Staff Member Moderator Builder

    Joined:
    May 5, 2014
    Messages:
    1,668
    Likes Received:
    627
    Looks the business. :thumbsup:
    That is a lot of money!!! :banghead:
    You shouldn`t leave it by the wheelie bins though!! :D

    Gray
     
    Jonny Norris likes this.
  16. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95
    Sunny day today, so thought id work on her outside, and the wheels come in handy for that, Though the missus wants to enter it in a red bull soap box race, shes says it will already be the death of her.

    spec wise its outweighing any i have seen on the market within a £15000 price bracket, here in the uk at least. so still made a big saving really.
     
    #16 Jonny Norris, May 23, 2015
    Last edited: May 23, 2015
  17. GrayUK

    GrayUK Openbuilds Team Elder
    Staff Member Moderator Builder

    Joined:
    May 5, 2014
    Messages:
    1,668
    Likes Received:
    627
    So. What are your plans for it. :cool:
     
  18. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95
    :zipit: To make a bank of them running 24/7 for orders, :D someday. baby steps. will fit a 10hp atc spindle at some point for cutting alumimum and also working on an oscillating tangential knife that's going on there for foam.
     
  19. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95
    Think it might be a good idea to cut the rack back so theres no way the 2 45nm motors dont try to fly of the end of the rail or round the pinions. anyone had proximity switches fail?
     
  20. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95
    control box v1, awaiting a custom passive motherboard with fault detection and status display screen.

    [​IMG]
    [​IMG]

    [​IMG]
     
    GrayUK likes this.
  21. Dave Millard

    Builder

    Joined:
    May 26, 2014
    Messages:
    27
    Likes Received:
    0
    Did the face of your VFD just fit through the hole or did you have to remove it? Looks very elegant.

    What is the big coil looking thing next to the VFD?
     
  22. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95
    Thanks! They are detachable for this exact purpose, only issue is there is no features around the side of the screen so makes mounting difficult.

    It's a toroidal transformer for my ac Nema 34 80v driver
     
    #22 Jonny Norris, May 25, 2015
    Last edited: May 25, 2015
    Dave Millard likes this.
  23. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95


    First test :) and runs beautifully. Needs some motor tuning and probably should bolt the ballscrew mounts in, but should be making chips in no time. :)
     
    Joe Santarsiero and GrayUK like this.
  24. Jonny Norris

    Jonny Norris Well-Known
    Builder

    Joined:
    Aug 17, 2014
    Messages:
    495
    Likes Received:
    95
    facing the bed: small amount of chatter, seemed to reduce at higher rpm. most likely down to the dull cutter im using. Running a pretty aggressive acceleration of 1000mm/sec/sec. reducing this will smooth the lead in/out. feedrate 2880mm/min - have pushed it to 4000mm/min doesnt seem to bother it. :) Though the frame could do with a few more braces in the corners in the y direction so DiggerJ you wern't far wrong its not quite strong enough, but i suppose if you're moving 250 odd kg at 4000mm/min its subject to a fair few g's. easy fix, just a few more welds. Other than that real happy :)

     
    #24 Jonny Norris, May 28, 2015
    Last edited: May 28, 2015
    GrayUK likes this.

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice