"Four in One" pencil sharpener

2019-12-30 Office Products 3449 10 19

最爱打瞌睡

China · Other Industries

"Four in One" pencil sharpener

2019-12-30 Office Products 3449 10 19

最爱打瞌睡

China · Other Industries

When drawing an engineering drawing, the designer needs to prepare at least three pencils of different types and thicknesses in order to complete an engineering drawing. This pencil sharpener adopts the shape of a regular tetrahedron and uses a simple pure physical structure, so that all four sides can complete the pencil cutting work and are very interesting.

The exclusive artifact of the draftsman,
The exclusive artifact of the draftsman,
The exclusive artifact of the draftsman,
19 24
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留言板 (10)

刘育彪 2023-07-22
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More than three years have passed, I just want to ask, has it been mass produced?

最爱打瞌睡作者 2023-12-02
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There is no concept to play.
我也说一句
邵某举高高 2020-06-02
回复

This four-way tube works very well.

gzcA 2019-12-31
回复

Don't leave a place for the structural engineer at all... the mold factory is crazy.

@小鲁班 2020-05-28
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Ha ha,
我也说一句
ahq 2019-12-30
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The idea is very good.

最爱打瞌睡作者 2019-12-30
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Thank you
我也说一句
野兽之美 2019-12-30
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Is it easy to block pen crumbs??

最爱打瞌睡作者 2019-12-30
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In a word, there is no way to this shape defect
Willa 2020-01-07
回复
Should it not be blocked if it is carried out separately?
我也说一句
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