Welcome to Our Community

Some features disabled for guests. Register Today.

Horizontal MiniMill (x5)

Discussion in 'CNC Mills/Routers' started by HC.Carbo, Jan 31, 2018.

  1. HC.Carbo

    HC.Carbo Veteran
    Builder

    Joined:
    Jan 7, 2018
    Messages:
    95
    Likes Received:
    96
  2. MaryD

    MaryD OpenBuilds Team
    Staff Member Moderator Builder

    Joined:
    Apr 13, 2016
    Messages:
    556
    Likes Received:
    540
    Cool look!
     
  3. GrayUK

    GrayUK Openbuilds Team Elder
    Staff Member Moderator Builder

    Joined:
    May 5, 2014
    Messages:
    1,430
    Likes Received:
    461
    Only guessing, and at the risk of seeming exceedingly thick, but I assume the spindle/router goes on the black plate, pointing towards the six sided plate, but does that plate rotate? :rolleyes:
    It must be an age thing! :)
     
  4. Rick 2.0

    Rick 2.0 OpenBuilds Team
    Staff Member Moderator Resident Builder Builder

    Joined:
    Dec 20, 2013
    Messages:
    1,813
    Likes Received:
    818
    Good so far but now comes the hard part. How do you plan on controlling it?
     
  5. HC.Carbo

    HC.Carbo Veteran
    Builder

    Joined:
    Jan 7, 2018
    Messages:
    95
    Likes Received:
    96
    GrayUK, yes pointing towards the plate & i hope it will rotate :)

    Rick, i know, f360/pokey/mach3/4 only the post i'm not sure yet. :)
     
  6. Mark Carew

    Mark Carew OpenBuilds Team
    Staff Member Moderator Resident Builder Project Maker Builder

    Joined:
    Jun 28, 2013
    Messages:
    2,184
    Likes Received:
    1,485
    This is going to be a fun one to see in action! Keep up the good work
     
  7. HC.Carbo

    HC.Carbo Veteran
    Builder

    Joined:
    Jan 7, 2018
    Messages:
    95
    Likes Received:
    96
    almost there...will it move ?

    (forgot to mention, my first cnc o_O maybe better ad the limit switches before firing up :) )

    [​IMG]
     

    Attached Files:

  8. GrayUK

    GrayUK Openbuilds Team Elder
    Staff Member Moderator Builder

    Joined:
    May 5, 2014
    Messages:
    1,430
    Likes Received:
    461
    Oooooo! I'm sooo excited!!!! :nailbite::nailbite:
     
  9. GrayUK

    GrayUK Openbuilds Team Elder
    Staff Member Moderator Builder

    Joined:
    May 5, 2014
    Messages:
    1,430
    Likes Received:
    461
    Trouble is....... if it works, I'M going to have to build one!!! :banghead::banghead:
    Her indoors, just won't go for it. :cry:
     
    dregalia and MaryD like this.
  10. Scotty Orr

    Scotty Orr Master
    Builder

    Joined:
    May 21, 2015
    Messages:
    281
    Likes Received:
    135
    Just curious - are you going to have another Y gantry to replace that short support piece on the right? Super build, btw!!
     
    MaryD likes this.
  11. Giarc

    Giarc Master
    Moderator Builder

    Joined:
    Jan 24, 2015
    Messages:
    925
    Likes Received:
    442
    Limit switches...why limit yourself. Be free.
     
    HC.Carbo and GrayUK like this.
  12. HC.Carbo

    HC.Carbo Veteran
    Builder

    Joined:
    Jan 7, 2018
    Messages:
    95
    Likes Received:
    96
    think not needed, (weight of the table is on one side)
    my aim was if...if it works, move it over to a c-beam xl.
    at other hand, this is a cool small setup that fits the size of the turn table :)
     
  13. HC.Carbo

    HC.Carbo Veteran
    Builder

    Joined:
    Jan 7, 2018
    Messages:
    95
    Likes Received:
    96
    not to fast Garry, run already in some troubles :)
    instead of 8 axis, my board is only running 4
    Have to send it back.

    But, it seems to run very smooth :)
     
    MaryD and GrayUK like this.
  14. dregalia

    dregalia Well-Known
    Builder

    Joined:
    Jan 17, 2017
    Messages:
    7
    Likes Received:
    8
    I distinctly remember the post saying something about a video somewhere???
    BTW, this is freakin' awesome!!
     
  15. HC.Carbo

    HC.Carbo Veteran
    Builder

    Joined:
    Jan 7, 2018
    Messages:
    95
    Likes Received:
    96
    no video so far :D it's just bad ad from openB team. :D
     
  16. HC.Carbo

    HC.Carbo Veteran
    Builder

    Joined:
    Jan 7, 2018
    Messages:
    95
    Likes Received:
    96
    sadly had a bad 8axis board, hopefully the company will give me a new working one.

    meanwhile hook it up on a 3 axis gbrllll thing & playing around to get used to it :)

    [​IMG]
     

    Attached Files:

    David the swarfer likes this.
  17. Rob Taylor

    Rob Taylor Veteran
    Builder

    Joined:
    Dec 15, 2013
    Messages:
    229
    Likes Received:
    89
    What's the total usable volume on this thing? Or do you not know what your spindle setup is going to be yet? The machine itself looks really clean so far!

    I also have 5-axis plans, temporarily on hold because it'll cost about $6-8k or so (turns out, BT30 spindles, not so cheap... :D), but it could be nice to have a cheap'n'easy option for non-metals in the meantime to start attacking that infamous 5-axis learning curve....
     
  18. HC.Carbo

    HC.Carbo Veteran
    Builder

    Joined:
    Jan 7, 2018
    Messages:
    95
    Likes Received:
    96
    The table is 15cm & fits perfectly the minimill size :) spindle, will go for a small one 500a800W before i buy...want to be sure if it works :)
    Thinking to change the setup (table weight 8kg) instead of the table on the y gantry >> table fix on the floor & put the y on the z axis for the spindle :)

    Hope to get it running this weekend. (seems a had a bad stepper driver)
    learning curve: think i saw every video(tut's) on small 5 axis machines :)

    Big Q: will this work or do my cheap Chinese table end up somewhere in the corner (as many) :)
    Another important Q: will F360 stay free ?
     
  19. Rob Taylor

    Rob Taylor Veteran
    Builder

    Joined:
    Dec 15, 2013
    Messages:
    229
    Likes Received:
    89
    I think the way you have it is perfect, personally- you don't want to pile up too many axes on one chain or you end up with hefty cumulative tolerances that can be hard to chase down. Y-table with rotary and z-x for the spindle is my plan too, since it keeps things balanced on each side. Originally I was going to flip the x and y and keep it like a rotated vertical machining center, based on this image of an Okuma:

    Okuma_-_MU-10000H.jpg

    But once you add the tombstones for the trunnion, you've lost a LOT of x travel- a big deal when you're talking 25mm rail and epoxy pours- and it's clearly visible that each moving body would be dimensionally better on the opposite axis. You don't lose any rigidity, but you gain a fair bit of working travel.

    I'm also thinking 500w for a non-metal machine. 800W would comfortably do aluminum if you set up the rest of the machine appropriately.

    It's not the building or the understanding of 5-axis that's difficult, it's actually running them. The CAM for true simultaneous 5 is a whole 'nother world, apparently. A lot of highly experienced machinists avoid them where possible and stick to 4-axis or 4+1 for multi-sided parts. That's probably more my plan too, sticking to 4+1 as much as possible, but I'm there would occasionally be a part that really would benefit from simultaneous 5 (impellers, sculptures, etc). When you're trying to keep the side of the ballnose end mill in the work rather than the tip for better chipload, it somewhat limits your kinematics and you end up forced to use the fifth axis.

    The trunnion assembly? Looks fine to me. I'd just be wary of overloading the belts (I'm assuming it's belt, not chain) on larger diameters where you might have nasty torque multipliers, especially if you're trying to plough through with 800W.

    F360 will likely stay free for hobbyists. Autodesk can make some dubious decisions like any other software company (*cough*Adobe*cough*) but I think they're best served by keeping people coming into their pipeline so they'll end up paying customers. Since F360 Ultimate is about $6k a year or whatever, the $100k business threshold makes sense. Seems likely they're gonna keep it rolling how it is. The backlash and loss of goodwill if they change it might be difficult to bear if they're aware of any competition.
     
    HC.Carbo likes this.
  20. HC.Carbo

    HC.Carbo Veteran
    Builder

    Joined:
    Jan 7, 2018
    Messages:
    95
    Likes Received:
    96
    ah, new stepper driver & everything works :)

    running a first toolpath with the e-stop in the hand :)

    mmm, this going way too easy. as far i can see, indexing (3+2) works fine.
     
  21. HC.Carbo

    HC.Carbo Veteran
    Builder

    Joined:
    Jan 7, 2018
    Messages:
    95
    Likes Received:
    96
    The reality was very different... :D

    changed the x/z to a 50cm gantry(cbeam xl) for safety :) (maybe not needed when u know what you are doing)

    post: there are few that are working :)

    running a toolpath, 6*face & adaptive on top worked fine (table turns 6 times & flip over for the adaptive)
    toolpath in mach 4 not really useful, but it works

    [​IMG]
     

    Attached Files:

  22. GrayUK

    GrayUK Openbuilds Team Elder
    Staff Member Moderator Builder

    Joined:
    May 5, 2014
    Messages:
    1,430
    Likes Received:
    461
    Come On!!!!:banghead: Where's the video?? :D:D:D
     
  23. HC.Carbo

    HC.Carbo Veteran
    Builder

    Joined:
    Jan 7, 2018
    Messages:
    95
    Likes Received:
    96
    need to clean my desk first :D

    just done a "flow" also this seems to work... all axis simultaneous, not sure what was coming out of the machine :D
     
    GrayUK likes this.
  24. HC.Carbo

    HC.Carbo Veteran
    Builder

    Joined:
    Jan 7, 2018
    Messages:
    95
    Likes Received:
    96
    #24 HC.Carbo, Feb 20, 2018
    Last edited: Feb 21, 2018
    iamme, dregalia and MaryD like this.
  25. HuguesP

    HuguesP Well-Known
    Builder

    Joined:
    Jan 14, 2018
    Messages:
    23
    Likes Received:
    20
    Wow, Looks awsome,
     
  26. HC.Carbo

    HC.Carbo Veteran
    Builder

    Joined:
    Jan 7, 2018
    Messages:
    95
    Likes Received:
    96

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