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HO scale train track model
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给自己的电动火车模型做的HO比例轨道，拼图卡扣设计。 轨距约16.5 转弯半径425，单个弯轨角度22.5‘（8根一个半圆），直轨长度170mm 所以要做一个环形轨道至少需要16根弯轨和两个直轨。 按照A1MINI 做的摆盘，其他机型自行摆放吧！尽可能一盘多打点。。。。
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