RepRap and its variants are notable because RepRap is an open-source project, and designers contribute their CAD files openly, allowing others to print with them or even modify the designs.

RepRap及其变体都声名在外，因为RepRap是一个开源项目，设计者提供他们的CAD文档，允许其他人打印或者修改设计。

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CAD enables designers to lay out and develop work on screen, print it out and save it for future editing, saving time on their drawings.

CAD使设计师计划和开发在屏幕的工作，打印它出来和保存它未来编辑的，节省时间在他们的图画。

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Using HP45 ink cartridges easy to replace cheap no need more maintenance print clearly and compatible with most CAD HP-GL file.

使用惠普hp45号墨盒，更换方便，价格便宜，无须过多保养，打印清楚并与大多HP - GL文件兼容。

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