1. #1
    Art Fenerty, the writer of Mach3 has been writing a new program for cutting gears.
    http://www.gearotic.com

    I have been working with him sorting out the spur and helical gears side to it,

    Where this program scores is that it can cut a gear with a normal off the shelf end mill, no special cutters needed.

    These were cut using just a 3mm end mill.

    Click image for larger version. 

Name:	helical%20pair.jpg 
Views:	198 
Size:	54.6 KB 
ID:	3162

    Today, first paying job was to make this bent and broken pinion gear.

    Click image for larger version. 

Name:	pinion%20shaft1.jpg 
Views:	173 
Size:	91.0 KB 
ID:	3163


    Into this.

    Click image for larger version. 

Name:	pinion%20shaft2.jpg 
Views:	212 
Size:	62.4 KB 
ID:	3164

    Done with a 1.5mm cutter.
    John S -

  2. #2
    Nice work John...Makes me want to throw my dividing head away.
    If the nagging gets really bad......Get a bigger shed:naughty:

  3. #3
    ecat's Avatar
    Location unknown. Last Activity: 08-02-2014 Has been a member for 6-7 years. Has a total post count of 157. Received thanks 5 times, giving thanks to others 8 times.
    Very nice.
    The gears in the 1st photo are the same ones from the youtube video? Mesmerising to watch :)

  4. #4
    I'm just wondering wouldthose slitting saw blades work with this? they go from 0.5 to 3mm wide and are cheap to buy.

  5. #5
    If they had side cutting teeth then yes they would work but it would have to be done on a CNC horizontal mill because the program works the offsets out in Y and A

    To use a slitting saw on a vertical it would have to be rewritten to use Z and A

    Another disadvantage is that because of the larger diameter it would not be possible to work up to a shoulder or larger gear, however this would be offset by the cutters being a lot stronger.


    [Edit] another disavantage is that you wouldn't be able to do helicals
    John S -

Similar Threads

  1. Not getting speeds I thought I would?
    By jonbabbz in forum General Discussion
    Replies: 5
    Last Post: 29-09-2012, 09:56 PM
  2. been playing this weekend
    By luke11cnc in forum Machine Discussion
    Replies: 0
    Last Post: 27-02-2012, 07:08 PM
  3. thought i knew but i don't,help
    By deannos in forum Motor Drivers & Controllers
    Replies: 7
    Last Post: 13-11-2011, 11:55 AM
  4. NEW MEMBER: Thought id join
    By cooliced in forum New Member Introductions
    Replies: 4
    Last Post: 17-08-2010, 02:30 AM
  5. Playing with VCarve pro and simulations
    By John S in forum CAD & CAM Software
    Replies: 2
    Last Post: 05-04-2010, 11:37 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •