547,544 active members*
776 visitors online*
Register for free
Login
Results 1 to 3 of 3
  1. #1
    Registered
    Join Date
    Sep 2017
    Posts
    7

    Desktop CNC - Corona Design

    This is how I have been spending my "lockdown afternoons" of early 2021 - advancing my CNC project!
    It's an aluminium-based-construction milling machine / router with working area of 320x220x120mm in 540x500x540mm enclosure - purposed for precision parts making & prototyping. Project is ongoing.
    Initial requirements were as such:
    - min. work envelope: 300x200x100mm,
    - max. dimensions: 500x500x500mm,
    - 230V 1-phase (I am in Europe),
    - some capacity to slowly mill non-ferritic metals,
    - precision (quality parts) but reasonable costs and possibility to DIY at home,
    - full enclosure including electronics inside + elegance.
    Finally the work envelope turned out to be 320x220x120mm and dimensions 540x500x540mm. I used:
    - HIWIN linear guides,
    - ISEL ballscrews, nut and bearing blocks,
    - GMT 0,8kW 24000rpm spindle,
    - 1,8Nm NEMA24 motors (3A).

    All critical comments are welcome.

  2. #2
    Member
    Join Date
    Jul 2018
    Posts
    3260

    Re: Desktop CNC - Corona Design

    Hi Kazi - Starting well but you have large chunks of metal with large chunks removed. A part is only as stiff as its least stiff bit so try not to remove metal from your parts. Plus they will be expensive due to the amount of machining required and the $$$ won't justify the result. Your side walls (or columns) seem to be very thin? Keep at it Peter

  3. #3
    Registered
    Join Date
    Nov 2013
    Posts
    1343

    Re: Desktop CNC - Corona Design

    Hi,
    peeteng is right, you've started with big thick slabs but then cut huge deep pockets in them sacrificing all that stiffness.

    The rigidity of the part pictured will be determined in large part by the thinnest section....and that seems a waste of what you started with.

    Attachment 469778

    Rather than cutting a deep pocket how about raising the linear cars up on two solid rectangular sections bolted or welded to the base, it would secure
    the clearance you need for the ballscrew WITHOUT sacrificing the stiffness of the slab.

    Craig

Similar Threads

  1. KL-6090 Desktop Cnc Router desktop,(24 x 36 x 6 inch)
    By automationtechinc in forum Newly Posted Classifieds Listings
    Replies: 2
    Last Post: 09-18-2015, 09:05 PM
  2. DIY Desktop Enclosed CNC Design & Build
    By yashodhanp in forum DIY CNC Router Table Machines
    Replies: 4
    Last Post: 07-09-2015, 01:44 AM
  3. New Mini Desktop CNC Router Design
    By BuildACNC in forum DIY CNC Router Table Machines
    Replies: 11
    Last Post: 10-05-2014, 09:11 PM
  4. desktop size CNC (is there any open source design?)
    By error404 in forum Open Source CNC Machine Designs
    Replies: 7
    Last Post: 02-22-2011, 09:59 PM
  5. Desktop CNC Design Ideas
    By bmsgaffer86 in forum DIY CNC Router Table Machines
    Replies: 5
    Last Post: 08-03-2009, 06:04 PM

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
  •