Development of three‐dimensional (3D) printing technology has started a new chapter for in‐classroom modeling of chemical molecules. The technology provides the opportunity to design and produce various types of personalized models. However, using classical 3D printers is time consuming, and it is hard to involve students in the modeling process during traditional class times. One solution can be using hand‐held 3D printers (3D pens) that allow users to instantly draw geometrical structures. Unfortunately, drawing directly in 3D is very difficult, and precise modeling of even small molecules is simply not possible. In this article, a new approach to 3D modeling is described. It is based on 3D templates that enable the drawing of molecular models directly in three dimensions. The modular nature of the templates allows for the creation of a wide variety of structures. The resulting models provide an accurate representation of molecules including correct bond angles and geometry. This approach makes 3D pens a powerful tool for the modeling of chemical structures.

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3D 绘图：使用 3D 打印机笔绘制化学模型

三维（3D）打印技术的发展开启了化学分子课堂建模的新篇章。该技术为设计和生产各种类型的个性化模型提供了机会。然而，使用经典的 3D 打印机非常耗时，并且在传统课堂时间很难让学生参与建模过程。一种解决方案是使用手持式 3D 打印机（3D 笔），允许用户立即绘制几何结构。不幸的是，直接在 3D 中绘制是非常困难的，即使是小分子的精确建模也根本不可能。在本文中，描述了一种新的 3D 建模方法。它基于 3D 模板，可以直接在三个维度上绘制分子模型。模板的模块化特性允许创建各种各样的结构。生成的模型提供了分子的准确表示，包括正确的键角和几何形状。这种方法使 3D 笔成为化学结构建模的强大工具。