Slow speed for holes

Discussion in 'CNC Cutting' started by cademaer, Apr 10, 2017.

  1. cademaer

    cademaer Active Member

    Joined:
    Feb 20, 2016
    Messages:
    29
    Likes Received:
    3
    Trophy Points:
    18
    I've noticed that a slower speed on holes seems to have much better results. Is there a way to have the software slow down on just the holes?

    Thanks!
     
  2. Kchoghead

    Kchoghead Well-Known Member

    Joined:
    Jan 19, 2016
    Messages:
    229
    Likes Received:
    35
    Trophy Points:
    108
    you would have to sequence your cuts each with the speed that you want
     
  3. LECS-Chad

    LECS-Chad Guest

    Yes in the TMCAD you would separate out the holes from the outside. So no MAKE PATH on everything. Then select just the holes, MAKE PATH, then CREATE TOOL PATH/FEMALE. Enter 60-70 for a feed rate and the lead in type you want. Press OK.
    Then select your outside. CREATE TOOL PATH/MALE. Enter 100 for a feed rate. Once all the tool paths are created select all (ctrl + A) and go to LAYOUT/SEQUENCE/START SEQUENCE BY LIST. Press TOOL PATH ONLY. Arrange the holes first then the outside last. Press OK.

    Output as normal. This will make the inside features run at 60-70% and the outside will run at 100% of what your feed rate is set at on the machine.
     
  4. Dnmeistr-LECS

    Dnmeistr-LECS Well-Known Member

    Joined:
    Dec 22, 2015
    Messages:
    705
    Likes Received:
    109
    Trophy Points:
    123
    Or create tool path as you normally would with a feedrate of 100 and use the percent override on the cutting software to adjust the feedrate, as with the cut order inside parts are cut first.
     
  5. cademaer

    cademaer Active Member

    Joined:
    Feb 20, 2016
    Messages:
    29
    Likes Received:
    3
    Trophy Points:
    18
    Gotcha, so basically 2 options:

    1. Do everything (speed adjustments and sequence) before outputting g-code file (I think this would be better for having production files).

    2. Output everything as normal but use the percentage slider and pause features to change the feeds while the machine is cutting everything (AKA: Set feed rate via slider bar to 60-70%, cut hole first, pause, change feed rate via slider bar to 100%, press start to finish cut).

    Thanks!
     
    LECS-Chad likes this.
  6. Dnmeistr-LECS

    Dnmeistr-LECS Well-Known Member

    Joined:
    Dec 22, 2015
    Messages:
    705
    Likes Received:
    109
    Trophy Points:
    123
    Dont necessarily have to pause the program, you can adjust the feedrate while it is cutting the last hole, and that new percentage will take affect as it is traveling over to cut the next piece.
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice