scx10三代改at4桥教程
入坑以来玩了8-9台攀爬车了吧，目前最爱的还是三代，因为这车要仿真有仿真，要性能有角斗士，可以说三代是台近乎完美的系列，除了没有差速锁哈哈，爱动手的我很早就完成了三代改t4桥的工程，并愉快的玩了很久，这次挑战给三代换差速直桥，先放两张之前改t4桥的照片，避震已经降到几乎没行程了才算协调http://image.rcfans.com/pic/20220107/1641534593558121_79.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
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市面上差速直桥有几个选择，三代最配的sdm金属差速直桥市价1700，t4桥+ssd直桥套件合计1700，crossrc.at4直桥388，我毫不犹豫的选了第三个方案
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先从后桥开始，后桥最简单，只需要将两根三代原厂下拉杆两头换成5347球头就行用于调整轴距，5347球头配的金属球头帽记得换成三代的，因为5347金属球头帽相对于三代或at4球头帽要窄1毫米左右，为了避免虚位尽量换掉
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前桥相对比较复杂，首先at4前桥的上拉杆座需要切割掉一边，因为本身没啥用，还会造成避震压缩跟车架干涉的问题，然后三代电机护板这块需要进行切割，也是为了增大避震压缩行程。
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两根原厂下拉杆不需要换任何东西，只是单独的那根上拉杆换成小男孩科技2块钱一根的100毫米长m4拉杆就行，前桥三根拉杆长度在下图
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最后就是考验动手能力的时候了，止推杆部分，需要自己制作，三代原厂用不了，买一根小男孩科技的70毫米或80毫米长m3拉杆，用老虎钳制作成Z字形，制作成品如图，然后止推杆与桥连接处记得加一颗2毫米介子作为外扩，是为了避震压缩到底时不会与后方球头干涉就行。
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说说传动轴，刚开始我想用手头其他金属传动轴或三代原厂传动轴发现用不了，原因是at4桥的输入轴长度较长，造成要不传动轴安装到底，但几米固定孔对不上桥轴固定孔，要不就是对上了，但较长的桥输出轴也会顶住传动轴万向节部分，造成干涉，遂只能用at4原厂传动轴，但我也同时发现at4传动轴不管是中间花键还是两头伸缩桶还是金属cvd部分几乎和三代一模一样，所以我进行了一定的移植。
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解决了传动轴的问题，就进入了今天最重要的部分了，由于at4桥是偏蛋桥，且与三代波箱前输出轴是反向偏向角度，最大的问题便是传动轴角度大小会被波箱边缘顶住，角度无法变更大而无法与桥顺利对接，期间想过各种办法，甚至一度放弃，最后也是非常感谢crossrc某技术人员提供的一个方案，既然传动轴被波箱挡住，那么延长波箱输出轴，让传动轴不被波箱挡住情况下与前桥连接，于是定做了这个部件，如图，顺利安装后，完美的与前桥对接，且任何扭腰角度下都不会与波箱干涉，可能有些人觉得这么大的角度会不会有其他影响，首先at4传动轴不是万向节设计而是球笼cvd结构，极限角度更高，不会出现万向节那种极限角度下卡顿问题，本车开山斧二代3300，全油门非常顺滑，至于轴效应个人觉得并不大，相对于我见过的改sdm桥的三代。
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最后就是转向拉杆随便找一根就行，我用的小男孩科技的50毫米m4拉杆搭配5347球头，差速舵机座用trx4的就行，舵机座固定则用三代原厂孔位固定就行，舵机本来想选择便宜的es08，但考虑到at4的钢丝差速绳及弹簧拉伸式差速插拨机构，还是想用个力量大点儿舵机，至此，一台完美的差速直桥三代便已完成，后面有视频。
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这样的好贴不多了，支持一下 视频忘放了【scx10三代改at4差速直桥-哔哩哔哩】 <br /><iframe src="//player.bilibili.com/player.html?bvid=BV1uF411v7HR" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe> 准备材料为at4直桥388，trx4差速舵机座30，at4传动轴188，5347球头20，tr4舵机x2.200，trx4金属差速舵保x2.30，小男孩科技100毫米及70毫米m4拉杆两根/70及80毫米m3拉杆两根共计4元，合计800 我总能在这千篇一律的论坛里第一眼看到你着你泥巴车https://app.rcfans.com/public/emotion/face_048.pnghttps://app.rcfans.com/public/emotion/face_048.png 二代和三代都是好车，我觉得二代更好玩。
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http://image.rcfans.com/pic/20220107/1641543456585370_726.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20 loveislove 发表于 2022-01-07 15:46
准备材料为at4直桥388，trx4差速舵机座30，at4传动轴188，5347球头20，tr4舵机x2.200，trx4金属差速舵保x2.30，小男孩科技100毫米及70毫米m4拉杆两根/70及80毫米m3拉杆两根共计4元，合计800
传动轴延长那个呢？ 虽然看不懂 但是顶一个https://app.rcfans.com/public/emotion/face_002.png 洵天心 发表于 2022-01-07 16:49
传动轴延长那个呢？
找加工厂定做的，做了10个，有需要可以联系一个30 终于等到了