603,323 active members*
3,144 visitors online*
Register for free
Login
IndustryArena Forum > WoodWorking Machines > DIY CNC Router Table Machines > Heavy large scale gantry mill/router/3d carving 5 axis build
Results 1 to 20 of 21

Hybrid View

  1. #1
    Join Date
    Dec 2003
    Posts
    199
    Bearings and rails took an hour of so going back and forth with a run out gauge to make sure they are dead on parallel. Once done they are tightened down and I'm moving to position the ball screw. After a lot of thought I went with a somewhat unorthodox design for the Deep Z axis. Rather then run the screw done the center I opted instead to run it to the side. This allows me to keep the two load bearing members as close together as possible. Considering the stout construction of this axis due to its unusual reach I see no problem with mounting the screw off center. It's got a 19 inch inch Z travel. Grin
    Attached Thumbnails Attached Thumbnails Picture 507 (Medium).jpg   Picture 509 (Medium).jpg   Picture 511 (Medium).jpg   Picture 514 (Medium).jpg  

    Is a sentance fragment?

  2. #2
    Join Date
    Aug 2008
    Posts
    409
    Looking Good!, Just wanted to mention that I use a similar Z design, my plates are 3/4" thick x 6" wide and I only have about 4" of overhang and I get a bit of bending when cutting.

    Are you worried about the 1" bending during cutting?

  3. #3
    Join Date
    Dec 2003
    Posts
    199
    Quote Originally Posted by Phife View Post
    Looking Good!, Just wanted to mention that I use a similar Z design, my plates are 3/4" thick x 6" wide and I only have about 4" of overhang and I get a bit of bending when cutting.

    Are you worried about the 1" bending during cutting?
    I've got some hardened steel that has been pre-drilled. I've also got some spare THK rail laying around. I'm planning on attaching the hardened steel at right angles to the sides of the slides to give them more rigidity. I'll do that after I test fit the rest of the bits.

    L
    Is a sentance fragment?

Similar Threads

  1. Want to build stout gantry CNC router
    By Jrs_Farm in forum DIY CNC Router Table Machines
    Replies: 7
    Last Post: 10-23-2009, 08:37 PM
  2. Very Large Gantry Router Questions
    By IAD in forum Open Source CNC Machine Designs
    Replies: 115
    Last Post: 01-19-2008, 07:23 PM
  3. heavy gantry
    By drafterman in forum Commercial CNC Wood Routers
    Replies: 6
    Last Post: 11-07-2007, 05:59 PM
  4. Aussie gantry router build number 4
    By Rodm1954 in forum CNC Wood Router Project Log
    Replies: 21
    Last Post: 08-01-2007, 08:43 PM

Posting Permissions

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