Results 1 to 1 of 1
  1. #1
    Join Date
    Jul 2008
    Location
    hazeldene in the land of black sticks
    Age
    61
    Posts
    17

    Default Cutting spirals and helix's with standard rocking and rosette

    First photo shows a spiral cut using a standard 24 bump sinewave with a 3mm amplitude, the lead angle is 25 degrees.
    Second photo shows a spiral cut using a standard 48 bump sinewave with a 3mm amplitude, the lead angle is 30 degrees.
    Third photo shows a double spiral or herringbone cut using a standard 48 bump sinewave with a 3mm amplitude, the lead angle is 30 degrees both left and right.
    Fourth and fith photos shows the cutter cutting the spiral in photo 1, cutter is set to 25 degrees same as lead angle of spiral.
    Photos 6,7 and 8 show the extra slide set at the lead angle of 25 degrees so as the job rotates it gives the bumps but because the tool is set to follow the lead angle you end up with a spiral.

    Down side is this method is only good for short and not to steep leads as either side of centre the job curves away from the cutter, cutter is set centre height at centre of travel.
    So you need to adjust the depth as it moves out to the outer edges, you start in the midlle cut to both edges at the centre depth then go from the centre out in both directions adjusting the depth as you go.

    The next experiment will be cutting gozintas and gozoutas on the lid of a box using a rosette, single start, 2 start, 3 start, and 4 start ( this means spirals going in and spirals going out)

    Cheers
    Tony



    P8010019.JPGP8010012.JPGP8010015.JPGP7310006.JPGP7310005.JPGP7310002.JPGP7310003.JPGP7310004.JPG
    Attached Images Attached Images

  2. # ADS
    Google Adsense Advertisement
    Join Date
    Always
    Location
    Advertising world
    Age
    2010
    Posts
    Many





     

Similar Threads

  1. Helix Cutter-Heads
    By Jim Grant in forum JOINTERS, MOULDERS, THICKNESSERS, ETC
    Replies: 6
    Last Post: 19th Feb 2016, 09:25 PM
  2. More Helix Clamps
    By Anorak Bob in forum METALWORK FORUM
    Replies: 3
    Last Post: 11th Aug 2013, 11:31 PM
  3. Helix Clamps - A modification
    By Anorak Bob in forum METALWORK FORUM
    Replies: 18
    Last Post: 31st Jan 2012, 11:08 PM
  4. Standard Timber Sizes / Cutting Diagrams
    By BeanerSA in forum WOODWORK - GENERAL
    Replies: 5
    Last Post: 9th May 2010, 04:34 PM
  5. cutting rosette channels
    By gratay in forum MUSICAL INSTRUMENTS
    Replies: 12
    Last Post: 19th Dec 2006, 01:23 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
  •