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Thread: Rota Broach From Rossbotics plans on HMT

  1. #1
    Supporting Member jjr2001's Avatar
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    Jun 2016
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    jjr2001's Tools

    Rota Broach From Rossbotics plans on HMT

    This was my first simple Rotabroach.
    Shop Made Rotary Broach with plans

    I needed something heavier so I made a copy of Doug Ross's super broach:
    Rotary Broaching Tool

    Using annular and thrust bearings this one reduces much of the friction generated by the broaching action.
    In the second picture I have made an extra spindle that can hold my older rotary broach cutters.
    I wanted to be able to use the smaller tools in my new broaching tool.

    This tool cuts like butter. I ran it thru a 3/4" thick piece of aluminum and it ran smooth as silk. Keeping cutting oil on the broach the entire way.

    Here are a couple of pics of my copy of Rossbotics broach:

    Cheers, JR
    Attached Thumbnails Attached Thumbnails Rota Broach From Rossbotics plans on HMT-img_2766a.jpg   Rota Broach From Rossbotics plans on HMT-img_2767a.jpg  

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  2. The Following 6 Users Say Thank You to jjr2001 For This Useful Post:

    Dimsa (Mar 9, 2021), Jon (Mar 10, 2021), NortonDommi (Mar 10, 2021), nova_robotics (Mar 9, 2021), old_toolmaker (Mar 14, 2021), Paul Jones (Mar 9, 2021)

  3. #2
    Content Editor
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    Aug 2013
    Thanked 1,598 Times in 1,433 Posts

    Thanks jjr2001! We've added your Rotary Broach to our Machining category,
    as well as to your builder page: jjr2001's Homemade Tools. Your receipt:

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