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Your choice: a print file (STL) for your own 3D printer – instant download – or ready-printed with shipping.

The snowflake spinner in white with red thumb caps
  • Image 1: The snowflake spinner in white with red thumb caps
  • Image 2: Section through the middle, colored for explanation: balls (blue) between snowflake and inner ring (turquoise), the red caps latched in the bore
  • Image 3: The print parts, here in light blue and red: spinner with bearing in one piece and one thumb cap

Images: 3D preview of the design

No. 74 · Fidget spinner with a printed-in ball bearing (9 balls) and two snap-on thumb caps, 75 mm – print files

Snowflake Spinner with Printed Ball Bearing

  • Instant download (ZIP, 2 MB)
  • 2 files
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€1.90

Instant download · ZIP, 2 MB · No VAT charged pursuant to § 19 UStG

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4.75 – 2 pieces of feedback on the shop (not verified)

The spinner needs no bought bearing: inner ring, nine balls and the snowflake are printed together in one piece. Two thumb caps snap into the inner ring from both sides.

In the download

  • Spinner_mit_Lager.stl
  • Daumenkappe_2x.stl (print twice)
Diameter
75 mm across the arm tips
Thickness
7 mm, with caps 13.6 mm
Bearing
9 balls Ø 6.6 mm, clearance 0.4 mm
Thumb caps
Ø 22 mm, 2 pieces, plug-in
Format
STL, 2 files (spinner with bearing: 11 bodies)

The model

The snowflake with six branched arms is also the outer ring of the bearing. Nine balls of 6.6 mm diameter run in grooves between snowflake and inner ring, with 0.4 mm of clearance all around. Each ball has a 0.6 mm deep flat spot at the bottom on which it stands during printing.

The gap between the rings is 5.2 mm at the top and 5.1 mm at the bottom, so narrower than the balls: balls and inner ring cannot fall out after printing. The inner ring has roughly 0.3 mm of play in every direction.

The two thumb caps are identical and printed twice. Each has two spring tongues with a latching lug that snap behind a bead in the bore of the inner ring (strain of the tongues when plugging in about 1 %). The second cap is plugged in from the other side, turned by 90°. In the section picture the parts are only colored differently for explanation.

View print notes (German)

Print notes included in German; part names are self-explanatory.

You will need

  • 3D printer with a print area of at least 80 × 80 mm
  • Filament in one or two colors

Printing

Orientation
spinner flat; caps with the grip side down, tongues up
Supports
none
Print area
from 76 × 66 mm
Material
PETG, 0.4 mm nozzle, 0.2 mm layers
Colors
spinner in one color, caps in a second one if you like

Notes

  • If the first layer sticks together a little, twist the inner ring against the snowflake after printing until the balls come loose. With 0.4 mm of clearance, the printed bearing has clearly more play than a steel bearing. Not suitable for children under 3 years (small parts that can be swallowed).
  • The files are for your private use – print them as often as you like. You may not pass on, upload or sell the files themselves.

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