1. 

   cpu999-1 New

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   using 1/4'' end mill bit its leaving surface not flat why ?

    

   #1 cpu999-1, Sep 17, 2020
2. 

   Gary Caruso OpenBuilds Volunteer

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   Have you trammed the z axis and the spindle?
   One example of many on how to do it.
   Cheers
   

    

   #2 Gary Caruso, Sep 17, 2020
3. 

   cpu999-1 New

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   ok thanz

    

   #3 cpu999-1, Sep 18, 2020