[电动] 手搓数控铣床完成

heisechong

在此先解释几个问题：
1、为啥xyz轴不采用全伺服电机或者闭环步进电机，这样精度更有保障？首先当然能确定精度会更好一点，但价格很贵（指伺服），其次伺服或闭环步进高精度只是自身旋转定位的精度高，但通过传动系统（同步轮、带及丝杆等）后到最终的工作台运动的精度就不好说了，因为其中影响因素太多，如同步轮和带的精度、丝杆及丝杆座的精度，安装的精度等都会影响到最终的精度，除非用电机直驱丝杆模式才会好一点，但联轴器和丝杆座也会有影响。所以我的终极方案是上光栅尺系统，并采用全闭环操作系统（如linuxcnc），这样工作平台的运动数据能直接反馈到操作系统，由操作系统直接修正误差，这样才能保证加工精度。
2、为啥没有安装限位开关？原因如上述第一条，我打算下一步是安装光栅尺，在光栅尺上结合限位开关，这样先玩起来。等以后换linuxcnc系统，再把光栅尺信号接入进去，达成真正的全闭环系统。


2025年的4月开始规划并设计，每天吃过晚饭折腾一点，直至8月初才初具雏形。钢板切割用的角磨机，然后是玩具台钻或锂电钻打孔，手动攻丝，基本算是纯手搓做的。目前还差数控系统没有调试及光栅尺没安装好，但已经可以手动操作加工了。


先上张目前的状态照片和视频

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