[問題] 想在家弄一個東西
我家樓頂有一間隔間屋頂夠低
想說在屋頂弄一個像影片上面那種東西
http://www.youtube.com/watch?v=QIITJuJDSag
有點像高空彈跳的橡皮固定腰部
然後也可以練習體操鞍馬
如圖 http://ppt.cc/Dxhw
可是天花板要怎麼固定呢?
不知道用什麼材料做這些東西比較好?
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