1. #1
    Art Fenerty, the writer of Mach3 has been writing a new program for cutting gears.

    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. 

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

    Click image for larger version. 

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    Into this.

    Click image for larger version. 

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    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 3-4 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 -

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