搜索 - 科创

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今天拆了一个洛马公司的无线电探空仪说是brand new全新未拆封，但是其实已经过期10多年了。电池包装上的生产日期显示2010年，这种设备一般保质期是3年，所以到了2013年就过期了，也就落到我手里...

一、前言很多初入火箭圈的爱好者不了解一整套火箭的设计思路和制作技巧，本项目将分享全部图纸和方案。二、设计创意简易无控火箭的整体设计？回收机构该如何设计？开伞系统控制如何制作？系统摄像头如...

新人第1次发帖，如有纰漏，还请各位大佬指出，谢谢一、发动机的制作先裁取一根约15厘米的ppr管在距离管口约一厘米处，四等分钻孔，并拧入自攻螺丝然后倒入环氧树脂与氧化铜的混合物做为堵头。喷管使用的是环氧...

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