1. #1
    Hi, I want to cut a long, wiggly groove 1 mm wide in engraving brass, 2mm deep (blank is 3.2mm thick). I have a Denford Novamill and plan to do the job with a 1mm diameter slot drill. As I don't have many of these, and prefer not to break them (!), any advice on feed, speed and DOC would be welcome please! My feeling is to cut at ~100mm/minute, at maximum revs (about 5000), about 0.5mm DOC per pass. Does this sound reasonable?

    TIA, John.
    Last edited by JohnHaine; 25-01-2016 at 04:14 PM.

  2. #2
    More like 42mm/min at max rpm and 0.5mm doc
    Stocking more goodies than just Smoothsteppers

  3. #3
    Ok, thanks, looks like I was over egging the feed rate somewhat!

    Sent from my iPad using Tapatalk

  4. #4
    Add this to your book marks for future reference: http://zero-divide.net/index.php?page=FSWizard_SA

    he also does an app in ITunes or play store. Worth the 11
    Stocking more goodies than just Smoothsteppers

Similar Threads

  1. What feed and speed for Oak
    By Clive S in forum Woodwork Discussion
    Replies: 1
    Last Post: 13-02-2015, 10:32 AM
  2. HSM Advisor - High Speed Machining feed & speed calculator
    By magicniner in forum CAD & CAM Software
    Replies: 2
    Last Post: 20-01-2014, 11:57 AM
  3. Engraving brass
    By Philly in forum Machine Discussion
    Replies: 3
    Last Post: 03-08-2013, 09:09 PM
  4. Replies: 0
    Last Post: 16-06-2013, 12:33 PM
  5. RFQ: CNC brass engraving from an stl file
    By Statstastic in forum Projects, Jobs & Requests
    Replies: 35
    Last Post: 04-10-2012, 09:28 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