may or may not be 'tech'
 

https://nypost.com/2018/05/18/this-bikes-a-real-prints/

compare with:
http://www.velo-pages.com/main.php?g2_itemId=27603
or
http://www.freepatentsonline.com/3833242.html

which turned out to be a fraud
--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971

may or may not be 'tech'
 

On Fri, 18 May 2018 08:16:30 -0500, AMuzi wrote:

https://nypost.com/2018/05/18/this-bikes-a-real-prints/

Click on the photo and take a look at the machine. How is the bicycle
frame going to fit inside the printer box?

Notice the spool of plastic "wire" on top of the machine. It takes
two (or more) spools to make CF tubing. One carbon fiber threads on
one or more spools, and the (epoxy?) binder, which presumably is
what's the spool. To the best of my knowledge, there's no such thing
as carbon fiber squeezed through a nozzle or melted on a wire.

Stuck to the front-top-right of the box is a partially obscured photo
of what looks like a bicycle helmet. I think that's what the machine
might be building.

Machine simulation:
https://www.youtube.com/watch?v=67x9dhrJlgw

Company web pile:
http://arevoinc.com

https://bikerumor.com/2018/05/17/arevo-showcases-free-motion-printing-with-3d-printed-composite-bike-frame/
18 days to design a bicycle. Impressive.
"As this was just a design exercise for AREVO, don’t expect
to see the bikes show up at your local shop any time soon..."

https://bikerumor-wpengine.netdna-ssl.com/wp-content/uploads/2018/05/Arevo-carbon-composite-3D-printed-bike-6.jpg
No metal inserts for end points that will be compressed by the axle
nuts.

I'm VERY skeptical and suspect that such a 3D printed frame will fall
apart after when hitting a bump in the road.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

may or may not be 'tech'
 

On 5/18/2018 11:21 AM, Jeff Liebermann wrote:
On Fri, 18 May 2018 08:16:30 -0500, AMuzi wrote:

https://nypost.com/2018/05/18/this-bikes-a-real-prints/

Click on the photo and take a look at the machine. How is the bicycle
frame going to fit inside the printer box?

Notice the spool of plastic "wire" on top of the machine. It takes
two (or more) spools to make CF tubing. One carbon fiber threads on
one or more spools, and the (epoxy?) binder, which presumably is
what's the spool. To the best of my knowledge, there's no such thing
as carbon fiber squeezed through a nozzle or melted on a wire.

Stuck to the front-top-right of the box is a partially obscured photo
of what looks like a bicycle helmet. I think that's what the machine
might be building.

Machine simulation:
https://www.youtube.com/watch?v=67x9dhrJlgw

Company web pile:
http://arevoinc.com

https://bikerumor.com/2018/05/17/arevo-showcases-free-motion-printing-with-3d-printed-composite-bike-frame/
18 days to design a bicycle. Impressive.
"As this was just a design exercise for AREVO, don’t expect
to see the bikes show up at your local shop any time soon..."

https://bikerumor-wpengine.netdna-ssl.com/wp-content/uploads/2018/05/Arevo-carbon-composite-3D-printed-bike-6.jpg
No metal inserts for end points that will be compressed by the axle
nuts.

I'm VERY skeptical and suspect that such a 3D printed frame will fall
apart after when hitting a bump in the road.


Too bad the investors in The Original Plastic Bike, Inc
didn't think like you.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971

may or may not be 'tech'
 

On 2018-05-18 10:37, AMuzi wrote:
On 5/18/2018 11:21 AM, Jeff Liebermann wrote:
On Fri, 18 May 2018 08:16:30 -0500, AMuzi wrote:

https://nypost.com/2018/05/18/this-bikes-a-real-prints/

Click on the photo and take a look at the machine. How is the bicycle
frame going to fit inside the printer box?

Notice the spool of plastic "wire" on top of the machine. It takes
two (or more) spools to make CF tubing. One carbon fiber threads on
one or more spools, and the (epoxy?) binder, which presumably is
what's the spool. To the best of my knowledge, there's no such thing
as carbon fiber squeezed through a nozzle or melted on a wire.

Stuck to the front-top-right of the box is a partially obscured photo
of what looks like a bicycle helmet. I think that's what the machine
might be building.

Machine simulation:
https://www.youtube.com/watch?v=67x9dhrJlgw

Company web pile:
http://arevoinc.com

https://bikerumor.com/2018/05/17/arevo-showcases-free-motion-printing-with-3d-printed-composite-bike-frame/

18 days to design a bicycle. Impressive.
"As this was just a design exercise for AREVO, don’t expect
to see the bikes show up at your local shop any time soon..."

https://bikerumor-wpengine.netdna-ssl.com/wp-content/uploads/2018/05/Arevo-carbon-composite-3D-printed-bike-6.jpg

No metal inserts for end points that will be compressed by the axle
nuts.

I'm VERY skeptical and suspect that such a 3D printed frame will fall
apart after when hitting a bump in the road.


Too bad the investors in The Original Plastic Bike, Inc didn't think
like you.


Don't most new bikes have plastic frames these days?

ducking

--
Regards, Joerg

http://www.analogconsultants.com/

may or may not be 'tech'
 

On 5/18/2018 12:44 PM, Joerg wrote:
On 2018-05-18 10:37, AMuzi wrote:
On 5/18/2018 11:21 AM, Jeff Liebermann wrote:
On Fri, 18 May 2018 08:16:30 -0500, AMuzi
wrote:

https://nypost.com/2018/05/18/this-bikes-a-real-prints/

Click on the photo and take a look at the machine. How
is the bicycle
frame going to fit inside the printer box?

Notice the spool of plastic "wire" on top of the
machine. It takes
two (or more) spools to make CF tubing. One carbon fiber
threads on
one or more spools, and the (epoxy?) binder, which
presumably is
what's the spool. To the best of my knowledge, there's
no such thing
as carbon fiber squeezed through a nozzle or melted on a
wire.

Stuck to the front-top-right of the box is a partially
obscured photo
of what looks like a bicycle helmet. I think that's what
the machine
might be building.

Machine simulation:
https://www.youtube.com/watch?v=67x9dhrJlgw

Company web pile:
http://arevoinc.com

https://bikerumor.com/2018/05/17/arevo-showcases-free-motion-printing-with-3d-printed-composite-bike-frame/


18 days to design a bicycle. Impressive.
"As this was just a design exercise for AREVO, don’t
expect
to see the bikes show up at your local shop any time
soon..."

https://bikerumor-wpengine.netdna-ssl.com/wp-content/uploads/2018/05/Arevo-carbon-composite-3D-printed-bike-6.jpg


No metal inserts for end points that will be compressed
by the axle
nuts.

I'm VERY skeptical and suspect that such a 3D printed
frame will fall
apart after when hitting a bump in the road.


Too bad the investors in The Original Plastic Bike, Inc
didn't think
like you.


Don't most new bikes have plastic frames these days?

ducking


Which is unrelated, those being actual products. The
Original Plastic Bike, Inc was only a brochure with slick
photo production but there was no actual product.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971

may or may not be 'tech'
 

On Fri, 18 May 2018 13:44:19 -0500, AMuzi wrote:

Which is unrelated, those being actual products. The
Original Plastic Bike, Inc was only a brochure with slick
photo production but there was no actual product.

OPB may never have sold a bike, but they had at least one store front,
so were (slightly) more than "only a brochure". This was probably
summer of 1972. I was working in a bike shop in Rocky Point, NY (on
Long Island). OPB opened a store in a strip mall a few miles away (on
25A, maybe in Miller Place?) that was closed by the end of the summer.

may or may not be 'tech'
 

On 5/18/2018 5:13 PM, ERSHC wrote:
On Fri, 18 May 2018 13:44:19 -0500, AMuzi wrote:

Which is unrelated, those being actual products. The
Original Plastic Bike, Inc was only a brochure with slick
photo production but there was no actual product.

OPB may never have sold a bike, but they had at least one store front,
so were (slightly) more than "only a brochure". This was probably
summer of 1972. I was working in a bike shop in Rocky Point, NY (on
Long Island). OPB opened a store in a strip mall a few miles away (on
25A, maybe in Miller Place?) that was closed by the end of the summer.


Did you ever go in? I ask because the brochure showed
relatively pedestrian bike parts (some recognizable by
brand/model) with glossy polyurethane paint in bold colors.
Nothing about the presentation would have fooled an
experienced mechanic, engineer or injection mold specialist.
There was no serious attempt to disguise metal objects
which, by their shape, could not possibly be executed
successfully in polymers.

Apparently the brochure was 'good enough' to swindle some
number of investors.

Go though the linked brochure images. It's amateurish IMHO.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971

may or may not be 'tech'
 

On Fri, 18 May 2018 12:37:28 -0500, AMuzi wrote:

Too bad the investors in The Original Plastic Bike, Inc
didn't think like you.

Some day, plastic bicycles will take over the industry:
https://www.google.com/search?q=plastic+bicycle&tbm=isch
I'm not sure that includes CF (carbon fiber) because of the cost.

How about an (almost) invisible plastic bicycle?
http://www.instructables.com/id/The-ICycle%3A-clear-plastic-bike-with-LED-edge-light/
Never mind the garish LED's. It's the clear (invisible) frame that
makes it interesting.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

may or may not be 'tech'
 

On Fri, 18 May 2018 20:02:04 -0500, AMuzi wrote:

Go though the linked brochure images. It's amateurish IMHO.

I didn't see a link to a brochure.

Maybe this is what you're thinking of:
https://books.google.com/books?id=4bSABo8Akh4C&pg=PA105&lpg=PA105#v=onepage &q&f=false
It sure doesn't look like it were made from any form of known plastic.
Oh, now I see why:
"Although this prototype had many steel parts, final
model is scheduled to have plastic frame, forks, handlebars,
gears, chain, hubs, and derailleur. Rim and cranks will
be alloy."
I wanna see the plastic gears in action. In other words, what you see
in the "prototype" photo is nothing even close to what is described,
planned, or expected.


--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

may or may not be 'tech'
 

On 5/19/2018 2:34 AM, Jeff Liebermann wrote:
On Fri, 18 May 2018 20:02:04 -0500, AMuzi wrote:

Go though the linked brochure images. It's amateurish IMHO.

I didn't see a link to a brochure.

Maybe this is what you're thinking of:
https://books.google.com/books?id=4bSABo8Akh4C&pg=PA105&lpg=PA105#v=onepage &q&f=false
It sure doesn't look like it were made from any form of known plastic.
Oh, now I see why:
"Although this prototype had many steel parts, final
model is scheduled to have plastic frame, forks, handlebars,
gears, chain, hubs, and derailleur. Rim and cranks will
be alloy."
I wanna see the plastic gears in action. In other words, what you see
in the "prototype" photo is nothing even close to what is described,
planned, or expected.



Try this catalog link:
http://www.velo-pages.com/main.php?g2_itemId=27603

notably:
http://www.velo-pages.com/main.php?g2_itemId=27633

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971