It comes far to close to the floor, it'd be ripped to pieces of here.
Looks like the mechanism would be expensive and heavy.
I wouldn't like a flat battery or accident with those.
I wouldn't like a flat battery or accident with those.
Manual winding mech solves any power problems. Can't see the issue with crashing, traditional doors jam in accidents all the time anyway.
Looks like the mechanism would be expensive and heavy.