km2 550改775电机 2gt换3m同步带
老款波箱装775电机需要买Crossrc的转换座，然后需要注意电机轴的长度，因为加了转换座，需要长一些的轴，我用的是km 77513t（易控黑皮轴短不能用）http://image.rcfans.com/pic/20230623/1687509867735874_408.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20230623/1687509867886650_378.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
目前用的2gt，齿比是60：16，带长150mm，有点松，爬坡跳齿，感觉148mm更合适一些，不想试了，干脆换3M。
http://image.rcfans.com/pic/20230623/1687510105401123_834.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
同步轮裸露，太有机械感了（主要是盖不上盖https://app.rcfans.com/public/emotion/face_wulian.png）775比550大一圈，想装上得研究研究
http://image.rcfans.com/pic/20230623/168751018748051_427.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
换775以后，拖刹效果更好，最低速度可以更低（1080电调）再就是皮带，比马达齿安静太多太多https://app.rcfans.com/public/emotion/face_043.png
http://image.rcfans.com/pic/20230623/1687510341748429_267.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20230623/1687510341750346_573.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
最后放2gt和3M带的数据，3m应该不容易跳齿。
3m同步轮只能用40:12，因为需要5mm内径，配合电机和波箱轴，这个大家都懂。
传动比40÷12=3.33，比目前60÷16=3.75更小。
775马达是13t，但车速比原装550 28t慢，换40:12后会更慢，玩速度慎改。
http://image.rcfans.com/pic/20230623/1687510432752615_470.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20230623/1687510432861256_654.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
新人刚入坑，大佬们多多指教https://app.rcfans.com/public/emotion/face_043.png 不换开山斧，一是因为太贵买不起；二是3300速度快，km配件价格伤不起；三是因为开山斧用在8车上坏了，保修期内也不保，群友发过售后的聊天截图，个人觉得很不合理https://app.rcfans.com/public/emotion/face_jizhi.png
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