stans4 prolynx.com wrote:

jamesgangnc wrote:

....

he's after something like a traditional car rear axle only
smaller.

Yes, some of Dufas reference looks very close.

https://sdp-si.com/eStore/PartDetail...&GroupID=4 43

https://sdp-si.com/eStore/..%5Css%5CPDF%5C79012010.pdf

I really like that, but (assuming it is strong enough) now I need
to figure out how to rigidly connect the keyway shaft to a skate
or a larger scooter wheel (same inner diameter). Some spacer has
to slip onto the keyway shaft and fit into the scooter wheel
(without bearings). If only I were craftsman...

Maybe he's trying to build powered roller skates.

FWIW.

Fascinating IMO, but probably not until motor and battery weight
decreases with high technology. Making in-line skates cumbersome
nukes their function. The gasoline engine stuff is garbage IMO.

Similar is a push stick for in-line skating. The closest thing is
probably a bicycle pusher as seen on YouTube (mostly gasoline). A
lithium-ion electric Trikke "Pon-e" is almost made-to-order (for
1600 bucks), simply by removing the front fork with the front hub
motor attached.

There's a cordless out there that has swivel head on it that
will run at any angle between straight inline and 90 degrees.

There is a drill attachment like that sold by McMaster, maybe the
same as Milescraft 1300 Orbiter sold elsewhere.
--










Don't remember
the brand, but seemed kind of bulky compared with the pneumatic.
Usually, if you need a right-angle drill, the space you'll have is
just a fraction less than the drill head.

Stan