disc with dado

disc with dado

has anyone figured out how to route a shallow dado into a circle?

when i scan with SMA i get this...

 for some reason it wants to pocket the whole inside and when i try to add the dado to a plain disc i can't get it to lead-in without catching part of the inside or outside of the dado. our machine won't plunge with the bits we have. any help with this would be appreciated.

    Microvellum Partner Limelight

    In this Limelight, we explore The MiLL in Colorado Springs, CO (The Manufacturing Industry Learning Lab), and learn about their CTE program that is working to address the trades skills gap at the high school level.

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