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Descrição
The only change I made was shortening the core to fit six rings instead of nine. This is a a ideal version for younger kids.
I used a screw to insert from the end cap and it holds in place nicely.
Editted the remix from DanielStein's (Original from pauloblank).
Printed in PETG on the Bambu X1C. All parts slide on perfectly and the ratchet system works perfectly.
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Tags
Addition
for Kids
hands on learning
learning
maths
multiplication
spinner
Subtraction
teaching
teaching aid
Licença
Creative Commons - Attribution - Share Alike
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