Another Motail (push stick for inline skating)

[John Doe]

Using a bigger 5.5 amp hour weed eater battery that includes a
power level meter. Fun for inline street skating.

http://www.flickr.com/photos/27532210@N04/

 

[Winston]

Using a bigger 5.5 amp hour weed eater battery that includes a
power level meter. Fun for inline street skating.

http://www.flickr.com/photos/27532210@N04/

Oh heck, that's not an innovation.

We used 'electric motor sticks' to move railroad
locomotives through small towns back in the day...

(Yes, I am kidding.)

Good job John.

--Winston

 

[John Doe]

John Doe wrote:

Oh heck, that's not an innovation.

We used 'electric motor sticks' to move railroad locomotives
through small towns back in the day...

(Yes, I am kidding.)

Good job John.

Thanks.

I don't really know about its novelty, but I don't plan to sell
them. I just want to develop one that is quiet and light, but goes
fast and far enough. Similar units have been around for a while.
There is a picture on the Internet, with source unknown, a kid
skating with what looks like a converted gas powered weed eater.
And there's another guy who seems to think the idea is original
with him. And there's another, a converted Razor scooter. Those
last two are on YouTube, one (heavy and loud) gas and one (heavy)
electric.

Inline street skating is like having wings on your feet. Weighing
them down with a motor defeats the purpose. And as far as I know,
a propeller is very inefficient relative to a wheel on the ground.
So a push stick is it, for now.

--

 

[Winston]

Thanks.

I don't really know about its novelty, but I don't plan to sell
them. I just want to develop one that is quiet and light, but goes
fast and far enough. Similar units have been around for a while.
There is a picture on the Internet, with source unknown, a kid
skating with what looks like a converted gas powered weed eater.
And there's another guy who seems to think the idea is original
with him. And there's another, a converted Razor scooter. Those
last two are on YouTube, one (heavy and loud) gas and one (heavy)
electric.

Inline street skating is like having wings on your feet. Weighing
them down with a motor defeats the purpose. And as far as I know,
a propeller is very inefficient relative to a wheel on the ground.
So a push stick is it, for now.

I'll look for your YouTube demo.

The push stick used in the first video you cited looks
quite dangerous because the force is away from the
user's center of mass. The second video also looks
quite dangerous because of the potential to go 'bark
chewing'.

If it wasn't dangerous perhaps it would not be as much fun.

--Winston

 

[John Doe]

John Doe wrote:

I'll look for your YouTube demo.

The push stick used in the first video you cited looks quite
dangerous because the force is away from the user's center of
mass.

There probably is a significant difference between the "Roller
Cycle" pushing against his butt, versus holding the push stick
with the handle in front like holding onto a hobby horse. Watching
that video again today, looks like it would zoom right over him if
he fell.

--

 

[Winston]

John Doe wrote:

(...)

There probably is a significant difference between the "Roller
Cycle" pushing against his butt, versus holding the push stick
with the handle in front like holding onto a hobby horse.

I haven't seen 'hobby horse' yet.
The guy in the first youtube is holding it off to the side.
I would, too, considering how the Family Jewels would be
affected by collision or hard braking otherwise. 00

Watching that video again today, looks like it would zoom
right over him if he fell.

A face plant is gonna leave a mark, no matter what, methinks.

--Winston

 

[Jasen Betts]

Thanks.

I don't really know about its novelty, but I don't plan to sell
them. I just want to develop one that is quiet and light, but goes
fast and far enough. Similar units have been around for a while.
There is a picture on the Internet, with source unknown, a kid
skating with what looks like a converted gas powered weed eater.
And there's another guy who seems to think the idea is original
with him. And there's another, a converted Razor scooter. Those
last two are on YouTube, one (heavy and loud) gas and one (heavy)
electric.

I'd be considering a backpack motor and a flexible drive,
I saw something similar on TV in the mid to late 80s driving a skier.

 

[John Doe]

I'd be considering a backpack motor and a flexible drive, I saw
something similar on TV in the mid to late 80s driving a skier.

Do you know what "flexible drive" is supposed to mean? You can't
build something without at least a hint of what it should be.

 

[John Doe]

I don't really know about its novelty

FWIW. I might have been the first to use leverage, forcing the
wheel into the ground as it pushes forwards. The guy using the
Razor scooter might be using some leverage, but my concept was
prior to his, and mine uses leverage aggressively. Using leverage
allows for a much lighter device, that allows me to carry the push
stick as needed while skating. But. Almost nobody inline street
skates nowadays, so novelty is mostly unimportant.

 

[P E Schoen]

"John Doe" wrote in message

Inline street skating is like having wings on your feet. Weighing
them down with a motor defeats the purpose. And as far as I
know, a propeller is very inefficient relative to a wheel on the
ground. So a push stick is it, for now.

Here is a much safer and more efficient way to power your rollerblades:

And with Landrollers:

http://www.landroller.com/Cesar-Millan-on-LandRollers.html

Paul and Muttley
www.muttleydog.com

 

[Mr. Haney]

Here is a much safer and more efficient way to power your rollerblades:

Hey! This is an electronics newsgroup!

So does this mean that you are using a taser on them to get them to go?

 

[P E Schoen]

"Mr. Haney" wrote in message

Hey! This is an electronics newsgroup!

So does this mean that you are using a taser on
them to get them to go?

That's too extreme. But a radio e-collar is very effective, and can be used
in vibrate or "shock" mode, or you could even transmit voice commands. Since
the dogs are on leads, you could use direct wiring.

But a better motivator may be a sausage-on-a-stick!

Paul and Muttley

 

[Mr. Haney]

"Mr. Haney" wrote in message



That's too extreme. But a radio e-collar is very effective,

Ummm... bubble burst... that's a taser. Only in an even worse
application location.

and can be used
in vibrate or "shock" mode,

Yeah, vibrators always made my dogs run.

or you could even transmit voice commands.

And even worse than TV (which they can see), artificial audio is often
ignored. You would have to specifically use only the recordings to train
the dog from the very beginning.

Since
the dogs are on leads, you could use direct wiring.

Direct commands as well.

But a better motivator may be a sausage-on-a-stick!

Naaah... a Dachshund (even a team of them) wouldn't have enough
dogpower to get the job done. Heheheh. (I do know what you meant, btw)

Paul and Muttley

Slave driver!

 

[John Doe]

"John Doe" wrote

And with Landrollers:

When was the last time you street skated?

Two wheel inline skates suck. I have a detailed explanation for
why three or more inline wheels are a necessary part of inline
skating on my picture page under the picture of big front wheel
skates "Land Skis".

http://www.flickr.com/photos/27532210@N04/

With only two wheels, your wheels dip into every crack and hole on
the sidewalk and in the road. It's not rocket science. Street
skating on two wheels just sucks. How badly it sucks is easy to
experience, by simply removing the middle wheels on your skates
(if you could skate). If you were skating on a 100% smooth
surface, two wheel inline skates (or quads/rollerskates) would be
okay.

--

 

[Jasen Betts]

Do you know what "flexible drive" is supposed to mean? You can't
build something without at least a hint of what it should be.

a flexible mechanical power transfer means between the motor and the
driven wheel(s)

could be anything, speedo cable, hydraulic, pneumatic, round belt over
hinged arms (like old dentist drills used)

But I think the one I saw used the drive mechanism from a
sheep shearing machine.

 

[John Doe]

But I think the one I saw used the drive mechanism from a sheep
shearing machine.

Driving a skier?

 

[Jasen Betts]

Jasen Betts <jasen xnet.co.nz> wrote:


Driving a skier?

Yeah, it was on a locally produced technology show.
probably "Fast Forward" (not the australian comedy sketch show)

 

[John Doe]

Gunner Asch <gunnerasch gmail.com> wrote:

Interesting skates!

Two wheel skates suck for street and off-road skating.

I used to skate with these

http://www.rollerblading.com.au/rollerbladecoyoteoffroadinlineskates.htm

No comparison between the two. Those were Rollerblade "Coyotes".
LandRollers have cockeyed wheels, but that's not their worst
fault. Coyotes have three wheels, that is hugely better than
having only two wheels. There is a good reason inline skates have
three or more wheels, and it's not just to fill the space between
the front and rear wheels. As clearly explained on my picture
page, having at least three wheels helps prevent falling into
every pit and pothole.

http://www.flickr.com/photos/27532210@N04/

Coyotes are okay for downhill, but pushing is a chore and have a
high center of balance. Given a push stick, as mentioned in this
thread and on my picture page, they might be okay for street
skating. But big front wheel skates (with small trailing wheels)
are better, if you can make a pair. I would love to have
rollerblade's ability to make skates. I would make something like
that coyotes with a big pneumatic front wheel, but with closely
spaced small trailing wheels. The only size requirement for the
trailing wheels is to provide enough clearance between the boot
and the ground. The big front wheel should be light as possible.

--