you can see it on my push stick YouTube playlist (it's the last
one in the playlist).
As mentioned, mine is different from the others because it uses
leverage for traction. If you don't use leverage, you have to use
weight to keep the wheel against the ground for traction. Inline
skating is too cool to constantly drag a heavy device. Using
leverage allows the device to be light, so you can carry it while
skating. Eventually, advanced battery technology will make
electric models much lighter and funner. Using leverage requires a
bit more skill, but it's not that difficult. You can see still
pictures and another description of my electric versions on this
page. The yellow one proved the concept and using it was lots of
fun. I hoped for better results by buying a cheap grass trimmer
with a big lithium-ion battery, but it (the red one) sucked. The
POS Chinese made battery crapped out on the first trip. Sort of
like electric versus gas cars, a decent electric car is expensive.
The model I'm working on now is gas powered, using an Echo GT225
(2 stroke 21.2 cc) grass trimmer engine. Like they say, it is
loud. Hopefully people won't notice too much as I zip past them.
It's basically finished, but its 5 inch wheel is not fast enough.
Ordered some 7 inch diameter wheels. Unless it bogs down with a
larger wheel, it should be okay (except for the noise). Will see.