6 Spoke "Ball Socket" Spinner

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So, Thanks To My Kids.... I'Ve Been Supplying The Locals With Fidget Spinners. Using The Typical Skateboard Bearings For Weights, And Ceramic "Hybrid" Bearings For The Center Bearings.... But I Kept Thinking There Had To Be A Better Way. I Had Seen Ball Bearing Spinners On Here, But They Required You To Heat The Bearing And Melt It Into Place. I Started Worrying About Younger Children Getting The Ball Out Of This Type Of Spinner And Swallowing Them. So I Decided To Model Up A "Ball Socket" For The Ball Bearings. Once Installed, They Swivel Inside The Ball Socket Just Like A Ball Socket Joint. To Install Them, Takes A Fair Amount Of Force (Hence The Relief At The End Of The Stem) And A Small Vice, Or A Arbor Press Works The Best..... However, If Your Plastic Is Flexible Enough... A Quick Tap With A Hammer Will Install Them As Well... Just Be Careful, It Can Crack Your Hard Work! They Take Standard .500" Steel Ball Bearings (Available For As Low As .10 A Piece) And I Like To Use Hybrid 608 Ball Bearings (Which Will Give Me 4+ Minutes Of Hand Table Spins)..... But Any Skateboard/Rollerblade Bearing Will Work. Choose The Approperate File Based On Your Layer Height (100 Vs 200 Microns). What I Found Is The 200 Micron "Steps" Inside The Ball Socket Required The Clearance To Be More Than If You Print At 100 Microns. If You Print The 200 Micron File At 100 Microns, It Will Work Just Fine, But The Balls Are Looser. Visa Versa, If You Print The 100 Micron File At 200 Microns, The Ball Socket Will Be Too Tight.

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