MakerWorld
Mathematics
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Abacus
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为我助力二年级要学算盘要用就做了一个,买的基本都是13档,感觉太长了也没啥用,就做了小一号的。分了3盘。珠子可以弄3色的也可以弄2色的,用了逐件打印,不会费料。
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