From me and my friend first Dolly Track.
It's made from aluminium, wheels are from skateboard (78A).
It is very stable, quite heavy.
Two flexible arms can guide the dolly over a flexible tube or pvc pipe.
Can be easily disassembled.
It took me and my fiend a lot of working hours.
Now I just need some good video head.
|Smooth ride in the living room|
|Outside test on pipe|