RT Machine Co Anver
Post a Response Subscribe Guidelines

CNC

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

Feed and speed questions

9/30/22       
Ben Robinson Member

I have been messing with my feed speed and RPM. The machine came to us set up and I was unsure where the numbers came from. I found a feed and speed calculator online and with the technical data from my bit book, it is coming back with really lower numbers for my bits.
I am currently set at 16500 and 400IPM on a 3/8, 2 flute, .020 chip load/per flute bit. cutting 3/4 Laminate Particle board 2-sided.
The machine can cut a max of 1000IPM.
It produces alright cuts.. when cutting double LP stuff it tends to try to chip every now and then. The bits also look like they get pretty hot, as well as the sawdust coming out is hot usually.
When I enter my information in the calculator, I get like 7000RPM and 265IPM ? for that bit. The only time I can get it to go up to 16000 RPM is maybe a 1/8 bit...?
Setting the machine to this produces a nice, colder cut, but is much slower of course.
How are you all getting these Spindle RPM speeds? Why is everyone running them so high when the formulas say for the bit diameter and flute sizes they need to be much lower... 1/2 bits on the calculator at 2 flutes is saying 5000 RPM?
Just sacrificing tool life for productivity?

Sorry for the lengthy post.

9/30/22       #3: Feed and speed questions ...
Dylan

Website: http://cnc-tool.com

You are making a mistake with the calculation.
its feed / # of flutes x RPM, so 400/(16500) x 2 is a chip load of 0.011" burning the tools. You should increase the feed to 650-700 in/min. Please review the link below and feel free to call and discuss. Calc. is also attached.
have a great weekend.
regards
dylan

feed and speed chip load information

10/2/22       #4: Feed and speed questions ...
Mark B Member

Download FS Wizard Ap.. Its more of a machining (metal) app but it works great for wood and non-ferrous too. Im with Dylan.. 400IPM your just grinding the tool to death and it will kill you with laminate as the cutting edge will breakdown right at the laminate layer and you will have issues with it fracturing the laminate inbound of the cut.

If you have the HP I running a 3/8" 2 flute tool twice as fast would get you closer. Your chips will always be hot, they will just be bigger.

10/3/22       #5: Feed and speed questions ...
Dropout Member

Just make a quick excel file.

RPM times # of flutes time chip load per tooth. We run 19mm deep in 21mm baltic birch all day long at 16500 RPM, 750 IPM. Have run 1/2 ply at 1,100 IPM and I know people who are running faster.

If you are not doing so, try FS Tools coated bits on the laminate.

10/3/22       #6: Feed and speed questions ...
Ben Robinson Member

Can you send me a link and copy of your tool numbers. So I can take a look at what you are using?
We use LMT-Onsrud right now, their Marathon series. They are coated with something, but I am unsure as to what they are coated with.

10/3/22       #7: Feed and speed questions ...
Ben Robinson Member

Also thank you for the feed back.. These numbers are preset from the factory. I have never messed with the feed and speed of the machine. I was getting the information for the chip load from the tool manufactures specs.

10/3/22       #8: Feed and speed questions ...
Dropout Member

Preset?
What machine and what software?

10/3/22       #9: Feed and speed questions ...
Ben Robinson Member

Boss Router
RouterCAD in the office
and Mach 4 out in the shop

10/3/22       #10: Feed and speed questions ...
Dropout Member

What size spindle? That may be limiting the feed rate.

10/9/22       #11: Feed and speed questions ...
Acctek  Member

Website: https://www.acctekgroup.com/index.html

Feed rate, also known as feed rate, refers to the distance that the tool (or workpiece) moves along the feed direction for each revolution of the workpiece (or tool).

6/28/24       #12: Feed and speed questions ...
Henry Robin Member

Website: https://uifcalculator.co.za/

It sounds like you're experiencing a common challenge in finding the right feed and speed settings. Optimal speeds often balance between bit size, material, and desired finish. Lower RPMs can reduce heat and extend tool life, despite slower cuts.


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)
    Suction Cups, Vacuum Lifters, Vacuum Pumps from Anver Corporation ecabinet systems.com Thermwood Limtech Industries, Inc.
    Related Information:
    Products: Computer Software
    Knowledge Base: Computerization

    Recent Threads at all Forums

    Sponsors
    • Carter Products
      Band Saw Guides, Blades, Wheels, Tires, Line Lasers and 2D Projectors, Wide Belt Sanding Accessories, Vacuum Holding Systems and More
    • Colonial Saw
      North American Supplier of Striebig Panel Saws, Lamello Specialty Tools and a Wide Range of Saw and Tool Grinding Machinery
    • EX-FACTORY INC.
      Offering New & Used Woodworking Machinery including Auctions & Liquidations
    • Biesse America
      Woodworking Machinery - Machining Centers, Edge Banders, Feeders/Stackers, Panel Sizing Centers
    • Mereen-Johnson Machine Company
      Manufacturers of High Production Woodworking Machinery
    • Simantech
      New & Used Machinery, Supplies, Tooling, Parts, and Abrasive Products
    • SainSmart
      CNC and Engraving machines for Makers
    • Felder USA
      High Quality Woodworking Machines and Tools
    • Unique Machine & Tool
      Industrial Machinery for Door and Drawer Production
    • Thermwood Corporation
      Computer Numerical Control (CNC) Routers and Accessories
    • ETK International
      New and Used Woodworking Machinery, Spare Parts and Superior Service
    • Weinig Group-USA
      Wood Moulders and Knife Grinding Equipment
    • Limtech Industries, Inc.
      CNC Routers, Machinery for Woodworking, Plastic and Other Non-ferrous Metal Machining Applications

    Become a Sponsor today!