Need Help! CNC X Axis Opinion


View Poll Results: Which Version would you build?

Voters
5. You may not vote on this poll
  • V1 (OpenBuilds c-Beam)

    0 0%
  • V2 (8020 30-6060 Outer)

    1 20.00%
  • V3 (8020 30-6060 Inner)

    0 0%
  • V4 (8020 40-8080 Inner)

    0 0%
  • V5 (8020 40-4080 Inner)

    2 40.00%
  • None of the Above

    2 40.00%
Multiple Choice Poll.
Results 1 to 4 of 4

Thread: CNC X Axis Opinion

  1. #1
    Registered xeudoxus's Avatar
    Join Date
    Jan 2006
    Location
    United States
    Posts
    1
    Downloads
    0
    Uploads
    0

    Default CNC X Axis Opinion

    I am designing a CNC for light aluminum work. I have made 5 examples and cannot figure out which one to use. It's my first build/revision for all 5 of them. I like V5 the most, but it's probably the least strong of them all (Next would be V2).

    (File is Sketchup 2017)

    Thanks,
    -Matt

    ---Image Order----
    • ALL
    • V1 (OpenBuilds C-Beam)
    • V2 (8020 30-6060 Outer)
    • V3 (8020 30-6060 Inner)
    • V4 (8020 40-8080 Inner)
    • V5 (8020 40-4080 Inner)


    Similar Threads:
    Attached Thumbnails Attached Thumbnails CNC X Axis Opinion-cnc-jpg   CNC X Axis Opinion-cnc-v1-jpg   CNC X Axis Opinion-cnc-v2-jpg   CNC X Axis Opinion-cnc-v3-jpg  

    CNC X Axis Opinion-cnc-v4-jpg   CNC X Axis Opinion-cnc-v5-jpg  
    Attached Files Attached Files


  2. #2
    Member aphocks's Avatar
    Join Date
    Oct 2021
    Posts
    6
    Downloads
    0
    Uploads
    0

    Default Re: CNC X Axis Opinion

    To increase rigidity you must decrease torque where linear guides mount to frames. You also need to increase the distance between two sides of structural beams. What this translates to is reducing the total distance between the cutter and the X axis rail as much as possible, it also means the further apart the top extrusion is from the bottom one on either side of the ball screw the better for rigidity. Finally and most obviously, 40mm is better than 30mm or 20mm. You'll need to take a closer look at your drawings to determine which best fits these descriptions, and weigh it against carriage mass and cost.

    Attached Thumbnails Attached Thumbnails CNC X Axis Opinion-ex-jpg  


  3. #3
    Member
    Join Date
    Aug 2015
    Posts
    135
    Downloads
    0
    Uploads
    0

    Default Re: CNC X Axis Opinion

    if u make a cnc to look nice and have no utility , then u can use the most beauty contest components , but if u make a cnc to work with it , u need to make it the most stiffnes u can achieve with stock u have .



  4. #4
    Member
    Join Date
    Jun 2010
    Location
    Australia
    Posts
    4174
    Downloads
    4
    Uploads
    0

    Default Re: CNC X Axis Opinion

    I don't think any of them will be much good for aluminium. For wood and plastics, maybe OK. For 3 mm cutters, maybe.
    The root of my dislike is the weakness and flex in all those aluminium extrusions. They are just not strong enough.

    My 2c
    Cheers
    Roger



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

CNC X Axis Opinion

CNC X Axis Opinion

CNC X Axis Opinion