CNC

You are not logged in. [ Login ] Why log in
(NOTE: Login is not required to post)

How Large A Circle?

11/1/17       
Joe Wood  Member

Website: https://woodsshop.com/

How large a diameter of a circle can a CNC cut with a 4' x 10' table? Is it limited to 4' or can you move it on the table after doing 1/2 of it? I'm hoping to have some 7' diameter circles cut.

I had these smaller circles cut but my CNC guy is out of town for another week so I can't ask him. The large moon gate entry I laminated.


View higher quality, full size image (750 X 1000)


View higher quality, full size image (1000 X 750)

https://woodsshop.com/PROJECTS/6m.htm

11/1/17       #2: How Large A Circle? ...
Jared Emery

Short answer: it depends. If you can cut your parts out as sections of arc and join afterward, you can make a circle with any diameter you want. See attached pic, with quarter circles joined with a puzzle joint. On the other hand, if you're trying to trim a part into a circle after it's been joined together, you'd normally be limited by the table width because oversized parts would collide with the gantry and ruin your day. However, I could imagine something could be worked up on an older cantilever-style router or machining center where your part would be supported off the table and indexed somehow, and the machining would be done on a section of arc at a time. Elaborate but possible.


View higher quality, full size image (3264 X 2448)

11/1/17       #3: How Large A Circle? ...
Leo G Member

Or you could do it with a router on a trammel.

11/1/17       #4: How Large A Circle? ...
Joe Wood  Member

Website: woodsshop.com/

Somethings to think about, thanks guys.

Yeah my CNC guy got back with me and said the largest he can do is 60". I'll think about the trammel or maybe laminate it up.

11/1/17       #5: How Large A Circle? ...
jerry Member

I had to cut a circle that were 12 foot radius and then when they told me that it was wrong They wanted it 12 foot diameter it had to be 6 inches wide. I could get 2 full circles out of 3 4x8 sheets of ply. I had to cut 51 sheets of ply for that job.

11/2/17       #6: How Large A Circle? ...
Paul Miller

Website: http://MCCWOODWORKING.COM

I think I could do it. You just have to move the circle around, supporting the part that is hanging off the table. Cut maybe 20% of the circle and rotate it and cut again and again etc. It might be a challenge, but definitely can be done. I have an AXYZ with a 80" x 144" table. But, I do not know his machine. I only know my machine.

Nice work on your web site.

11/2/17       #7: How Large A Circle? ...
james e mcgrew Member

Website: mcgrewwoodwork.com

with a pure round and a table short width of 49 then the single machinable distance is 48" x 48 without any material beyond that, or you could do a 48 x 120 eliptical

11/2/17       #8: How Large A Circle? ...
Dropout Member

Depends on the CNC. I have a 5X10 with movable tables, so could do this.

An alternative is do it in 2 layers in halves. Rotate the top and bottom layer 90 degrees and away you go. Done this many times for 10 foot diameter circles.

11/2/17       #9: How Large A Circle? ...
MC

u could also do like he said with the puzzle joints in cheap material & lay on your good material & use it as a template for hand router.

11/3/17       #11: How Large A Circle? ...
tom Member

It depends on the CNC our Beisse's could cut larger by spinning the material as they don't have the duel support gantry.


Post a Response
  • Notify me of responses to this thread
  • Subscribe to email updates on this Forum
  • To receive email notification of additions to this forum thread,
    enter your name and email address, and then click the
    "Keep Me Posted" button below.

    Please Note: If you have posted a message or response,
    do not submit this request ... you are already signed up
    to receive notification!

    Your Name:
    E-Mail Address:
    Enter the correct numbers into the field below:
     

    Date of your Birth:



    Return to top of page

    Buy & Sell Exchanges | Forums | Galleries | Site Map

    FORUM GUIDELINES: Please review the guidelines below before posting at WOODWEB's Interactive Message Boards (return to top)

  • WOODWEB is a professional industrial woodworking site. Hobbyist and homeowner woodworking questions are inappropriate.
  • Messages should be kept reasonably short and on topic, relating to the focus of the forum. Responses should relate to the original question.
  • A valid email return address must be included with each message.
  • Advertising is inappropriate. The only exceptions are the Classified Ads Exchange, Machinery Exchange, Lumber Exchange, and Job Opportunities and Services Exchange. When posting listings in these areas, review the posting instructions carefully.
  • Subject lines may be edited for length and clarity.
  • "Cross posting" is not permitted. Choose the best forum for your question, and post your question at one forum only.
  • Messages requesting private responses will be removed - Forums are designed to provide information and assistance for all of our visitors. Private response requests are appropriate at WOODWEB's Exchanges and Job Opportunities and Services.
  • Messages that accuse businesses or individuals of alleged negative actions or behavior are inappropriate since WOODWEB is unable to verify or substantiate the claims.
  • Posts with the intent of soliciting answers to surveys are not appropriate. Contact WOODWEB for more information on initiating a survey.
  • Excessive forum participation by an individual upsets the balance of a healthy forum atmosphere. Individuals who excessively post responses containing marginal content will be considered repeat forum abusers.
  • Responses that initiate or support inappropriate and off-topic discussion of general politics detract from the professional woodworking focus of WOODWEB, and will be removed.
  • Participants are encouraged to use their real name when posting. Intentionally using another persons name is prohibited, and posts of this nature will be removed at WOODWEB's discretion.
  • Comments, questions, or criticisms regarding Forum policies should be directed to WOODWEB's Systems Administrator
    (return to top).

    Carefully review your message before clicking on the "Send Message" button - you will not be able to revise the message once it has been sent.

    You will be notified of responses to the message(s) you posted via email. Be sure to enter your email address correctly.

    WOODWEB's forums are a highly regarded resource for professional woodworkers. Messages and responses that are crafted in a professional and civil manner strengthen this resource. Messages that do not reflect a professional tone reduce the value of our forums.

    Messages are inappropriate when their content: is deemed libelous in nature or is based on rumor, fails to meet basic standards of decorum, contains blatant advertising or inappropriate emphasis on self promotion (return to top).

    Libel:   Posts which defame an individual or organization, or employ a tone which can be viewed as malicious in nature. Words, pictures, or cartoons which expose a person or organization to public hatred, shame, disgrace, or ridicule, or induce an ill opinion of a person or organization, are libelous.

    Improper Decorum:   Posts which are profane, inciting, disrespectful or uncivil in tone, or maliciously worded. This also includes the venting of unsubstantiated opinions. Such messages do little to illuminate a given topic, and often have the opposite effect. Constructive criticism is acceptable (return to top).

    Advertising:   The purpose of WOODWEB Forums is to provide answers, not an advertising venue. Companies participating in a Forum discussion should provide specific answers to posted questions. WOODWEB suggests that businesses include an appropriately crafted signature in order to identify their company. A well meaning post that seems to be on-topic but contains a product reference may do your business more harm than good in the Forum environment. Forum users may perceive your references to specific products as unsolicited advertising (spam) and consciously avoid your web site or services. A well-crafted signature is an appropriate way to advertise your services that will not offend potential customers. Signatures should be limited to 4-6 lines, and may contain information that identifies the type of business you're in, your URL and email address (return to top).

    Repeated Forum Abuse: Forum participants who repeatedly fail to follow WOODWEB's Forum Guidelines may encounter difficulty when attempting to post messages.

    There are often situations when the original message asks for opinions: "What is the best widget for my type of shop?". To a certain extent, the person posting the message is responsible for including specific questions within the message. An open ended question (like the one above) invites responses that may read as sales pitches. WOODWEB suggests that companies responding to such a question provide detailed and substantive replies rather than responses that read as a one-sided product promotion. It has been WOODWEB's experience that substantive responses are held in higher regard by our readers (return to top).

    The staff of WOODWEB assume no responsibility for the accuracy, content, or outcome of any posting transmitted at WOODWEB's Message Boards. Participants should undertake the use of machinery, materials and methods discussed at WOODWEB's Message Boards after considerate evaluation, and at their own risk. WOODWEB reserves the right to delete any messages it deems inappropriate. (return to top)


  • Forum Posting Help
    Your Name The name you enter in this field will be the name that appears with your post or response (return to form).
    Your Website Personal or business website links must point to the author's website. Inappropriate links will be removed without notice, and at WOODWEB's sole discretion. WOODWEB reserves the right to delete any messages with links it deems inappropriate. (return to form)
    E-Mail Address Your e-mail address will not be publicly viewable. Forum participants will be able to contact you using a contact link (included with your post) that is substituted for your actual address. You must include a valid email address in this field. (return to form)
    Subject Subject may be edited for length and clarity. Subject lines should provide an indication of the content of your post. (return to form)
    Thread Related Link and Image Guidelines Thread Related Links posted at WOODWEB's Forums and Exchanges should point to locations that provide supporting information for the topic being discussed in the current message thread. The purpose of WOODWEB Forums is to provide answers, not to serve as an advertising venue. A Thread Related Link that directs visitors to an area with inappropriate content will be removed. WOODWEB reserves the right to delete any messages with links or images it deems inappropriate. (return to form)
    Thread Related File Uploads Thread Related Files posted at WOODWEB's Forums and Exchanges should provide supporting information for the topic being discussed in the current message thread. Video Files: acceptable video formats are: .MOV .AVI .WMV .MPEG .MPG .MP4 (Image Upload Tips)   If you encounter any difficulty when uploading video files, E-mail WOODWEB for assistance. The purpose of WOODWEB Forums is to provide answers, not to serve as an advertising venue. A Thread Related File that contains inappropriate content will be removed, and uploaded files that are not directly related to the message thread will be removed. WOODWEB reserves the right to delete any messages with links, files, or images it deems inappropriate. (return to form)