Solved Improved Z axis quill

Results 1 to 4 of 4

Thread: Improved Z axis quill

  1. #1
    Member
    Join Date
    Dec 2006
    Location
    USA
    Posts
    86
    Downloads
    10
    Uploads
    0

    Default Improved Z axis quill

    This is the after shots, too many perhaps, but maybe it will help someone.

    Similar Threads:
    Attached Thumbnails Attached Thumbnails Improved Z axis quill-img_20161226_141625-jpg   Improved Z axis quill-img_20161226_141549-jpg   Improved Z axis quill-img_20161226_141456-jpg   Improved Z axis quill-img_20161220_034350-jpg  

    Improved Z axis quill-img_20161226_141517-jpg   Improved Z axis quill-img_20161224_202520-jpg  


  2. #2
    Member
    Join Date
    Dec 2006
    Location
    USA
    Posts
    86
    Downloads
    10
    Uploads
    0

    Default Re: Improved Z axis quill

    Zay7032g came from harbor freight. Got the CNC a while ago but I just upgraded the z axis recently.

    The old z setup had about .250 of stick slip and slop. Not surprising, given the two pulleys, worm and gear, and then rack and pinion that the motion had to travel through.

    The x and w mounts are pretty crude but they work fine.

    Attached Thumbnails Attached Thumbnails Improved Z axis quill-img_20161226_141710-jpg   Improved Z axis quill-img_20161226_141702-jpg   Improved Z axis quill-img_20161226_141657-jpg   Improved Z axis quill-img_20161226_141650-jpg  

    Improved Z axis quill-img_20161216_172103-jpg   Improved Z axis quill-img_20161220_034336-jpg  


  3. #3
    Member
    Join Date
    Dec 2006
    Location
    USA
    Posts
    86
    Downloads
    10
    Uploads
    0

    Default Re: Improved Z axis quill

    Piece of 1/2" cold rolled steel cross drilled for a bit. Just a little sharpened piece high speed Steel. The black thing clamped to the quill with the vice grips is just a weird chunk of stuff with two half inch bearings in it. I can slide the boring bar up and down. I made a couple passes. I was less worried about a creating a particular dimension than creating a clean bore because I could turn the inner piece to fit it exactly. Later when I was doing the upper and lower face I made that bronze bushing to keep the boring bar centered.

    I also I also turned that piece of aluminum which I'm using to sand the bore. I put little pieces of sticky back sandpaper on it and cleaned up the scoring. I turned it a little bit under-sized to allow for the Sandpaper and I could adjust the fit by the width of the Sandpaper strip. I'm also using a sanding drum to clean up the faces, that didn't actually work at all.

    The faces were the hardest part and in the end I was forced to resort to a big facing cutter I have. The single point (edge?) cutter was bouncing up and down making those lines. Thinking about it afterwards perhaps a clamp on the boring bar and a spring would have allowed me to even things out. I just put the facing cutter on the sanding arbor after I turned it down, in the cordless drill and used the bronze pilot to center it.

    Attached Thumbnails Attached Thumbnails Improved Z axis quill-img_20161215_131509-jpg   Improved Z axis quill-img_20161215_131314-jpg   Improved Z axis quill-img_20161215_133935-jpg   Improved Z axis quill-img_20161215_131239-jpg  

    Improved Z axis quill-img_20161214_215909-jpg   Improved Z axis quill-img_20161214_204726-jpg   Improved Z axis quill-img_20161214_204720-jpg   Improved Z axis quill-img_20161216_175830-jpg  

    Last edited by dan_the_welder; 12-26-2016 at 05:50 PM. Reason: Spelling, typos


  4. #4
    Member
    Join Date
    Dec 2006
    Location
    USA
    Posts
    86
    Downloads
    10
    Uploads
    0

    Default Re: Improved Z axis quill

    Okay, turned that bronze pivot pin that I got from the flea market down so it fit in my newly bored hole. Threaded the end, made a nut, bored it out and tapped an Acme thread, turned the head to take an XL pulley.

    Later I decided on a larger pullly and I had to cut back the cast iron a bit. I used a thin abrasive wheel on a grinder. No big deal and the lock still works fine. If necessary I could have around the corners of the Lock Pins a little bit.

    The rest is just mounting the motor with a little bit of 8020 and some aluminum plate. I need to make a new Nema 34 plate, a symmetrical one and reattach the front cover and put a high limit switch on that Acme screw nut.

    Conclusion? It kicks ass it's a hundred times better than the old setup it was a huge pain in the butt to build particularly the boring but completely worth it. Hit me up if you got any questions.

    Attached Thumbnails Attached Thumbnails Improved Z axis quill-img_20161216_175830-jpg   Improved Z axis quill-img_20161216_023156-jpg   Improved Z axis quill-img_20161216_002441-jpg   Improved Z axis quill-img_20161226_141549-jpg  



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

Improved Z axis quill

Improved Z axis quill