[Updated 2025-10-02: released additional part: “1-7 pie", a requested missing fraction for the set, description updated.]

[Updated 2024-10-14: released versions: “blank lid, symbol lid, fraction circles lid, circle fractions lid” , renamed files to: “pie fractions lid” and “case body”, added new folders for organization]

Notes:

An alternate design aimed for larger parts for younger children can be found here:
- Math-Pie-Pieces-Fraction-Circle

Simple to print fraction circle designed to teach kids in math
Learn basic fractions, equivalency, and angles through pie slices
About 3mm thickness per piece
Comes with a lid for the pie case body
Both the lid and case body can be used as a dish for a fraction circle
All the pie pieces can be carried in the container
Includes: 1/1, ½, ⅓, ¼, 1/5, 1/6, 1/8, 1/9, and 1/10 (***added 1/7 piece fraction, see update)

Printing:

I printed with 0.4noz, 0.2layerh, 10% gyroid infill, mix of PLA, but mostly PETG
It is suggested to change the bridging angle (45 degrees recommended) so that the orientation of the pie slice's lettering that overhang will print in better quality (For Prusaslicer>Print Settings>Infill>Advanced>Bridging angle)
If desired, color changes start at 1.00mm (and change back after another 1.00mm to original color) for lettering to stand out (be sure to double check the color in the slicer!)

Compact Math Pie Fractions

by t3dworld · original on Printables ↗

Learning / Math

♥ 455⬇ 904🖨 7 prints

License: Creative Commons — Attribution — Noncommercial ↗childrenkidskideducationeducationalmathlearningnosupportnosupportneedededucationaltoykidstoyskidstoynosupportsneedednosupportsfractionseducationaltoys

Print profiles

1-1 pie.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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case body.stlDEFAULT
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Prints on: A1 mini 0.4PLA
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1-3 pie.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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1-4 pie.stl
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Prints on: A1 mini 0.4PLA
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1-8 pie.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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pie fractions lid.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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1-6 pie.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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1-2 pie.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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1-5 pie.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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1-9 pie.stl
⏱ time and weight estimated after preparation · 1 material(s)
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1-10 pie.stl
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symbol lid.stl
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Prints on: A1 mini 0.4PLA
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blank lid.stl
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circle fractions lid.stl
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fraction circles lid.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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1-7 pie.stl
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Prints on: A1 mini 0.4PLA
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1-7 pie.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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