Calibration Sphere
Description
We'Ve All Seen, And Printed, The Xyz Calibration Cubes. Not Only Do They Work Great To Test Dimensional Accuracy As Well As Z-Wobble, Ghosting And A Host Of Other Issues, But When Printed In Vase Mode, They Work Great To Purge Filament In Between Color Changes. However, I Have Found That Some Filament Will Print Beautifully On The Straight Edges Of The Cube, But Problems Show Up When Printing Rounded Or Curved Surfaces. To That End, I Have Made This Simple, Hollowed Out, High Resolution, 20Mm Sphere With A Flattened Bottom. The 0.8Mm Thick Walls Are Meant To Be Printed With A 0.4Mm Nozzle. Printing At 40Mm/Sec Takes Just Under An Hour And Uses About 4G Of Filament.
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