Clamp #4

41gr of ABS (40cm3) this concept only may be made by 3d printing technology. inside the slot (standard profile and hole pattern for aircraft seat) can be found 2 small wheels: in the first use of the clamp, those wheels will be separated from the slot once the bolt is installed; when the bolt slide into the slot, makes the wheels to go down, blocking and attaching the rail. in zero gravity is quite easy to maintain wheels inside the slot (I suppose so)