Way too much ingenuity to take in. Especially on the homepage of "rex
research".

Damn. So much stuff to learn.

http://www.rexresearch.com/revetec/revetec.htm

Punctuation is your friend.

hobot <hobot@...> wrote:

>You commit throws me back to a mystical-biological incentive a swami
>told me.- women are biological set up to create new life but men who
>can't express creativity any way they can - even if totally useless or
>off the wall stuff.  I create messes for instance.  hobot
>
>, Brent Prindle wrote:
>>
>> Way too much ingenuity to take in. Especially on the homepage of "rex
>> research".
>>
>> Damn. So much stuff to learn.
>>
>> http://www.rexresearch.com/revetec/revetec.htm
>>
>

http://www.popsci.com/cars/article/2012-04/video-flying-car-or-driving-autogyro-\
completes-first-flight-tests

http://thekneeslider.com/archives/2011/05/10/mj-works-250rr-designing-and-buildi\
ng-your-own-250cc-racer/

http://www.laverdamuseum.nl/index_uk.html

Take the V6 rebuild link.

Cor Dees is preparing the original V6 racer and building a second
from spares.  But there were lots of parts missing and other parts
were damaged, so he's got a HUGE project of
redesigning/remanufacturing a lot of expensive parts.

There are many interesting photos of engine and gearbox internals,
parts being machined, molds being made, a new fuel tank
constructed, and on and on and on.

They aren't running yet, but it may not be very much longer before
they are finished.

cheers,
Michael

><http://www.laverdamuseum.nl/index_uk.html>http://www.laverdamuseum.nl/index_uk\
.html
>
>Cor Dees is preparing the original V6 racer and building a second
>from spares.


I'm calling in to see him in one week, if you want some specific photos.


Cheers              IAN


See www.drysdalev8.com for :
- Drysdale 750-V8 Sports & 1000-V8 Cruiser
- DRYVTECH 2x2x2 Experimental
- Carberry Enfield 1000cc V-Twin
- Drysdale Hillclimb Open Wheeler

>>http://www.laverdamuseum.nl/index_uk.html

>>Take the V6 rebuild link.

Wow, that's some nice work.  And lots of it.

Chris Cosentino
Cosentino Engineering
812 Jersey Ave. 3rd Floor
Jersey City, NJ 07310
201-392-1400
fax 484-340-1400
www.cosentinoengineering.com

I'm sure this has been talked about before but I couldn't find it with the
search function.  What is a good steel to use to make a transmission axle that
has an integral gear? It's for a Yamaha RD400, I want to make one so I can use a
dry clutch from a TZ.  The heat treatment shop recommended 1045 and induction
hardening the gear and other wear areas. Anyone know what Yamaha actually used?
Thanks,
Brad H

On Wednesday 04 April 2012 18:13:18 tz350g wrote:
> I'm sure this has been talked about before but I couldn't find it with the
> search function.  What is a good steel to use to make a transmission axle
> that has an integral gear? It's for a Yamaha RD400, I want to make one so I
> can use a dry clutch from a TZ.  The heat treatment shop recommended 1045
> and induction hardening the gear and other wear areas. Anyone know what
> Yamaha actually used? Thanks,
> Brad H
>
Hi,
Graham Dyson of Nova racing makes these he was in Crowland lincolnshire uk.

--
TTFN
    Caparo.

>What is a good steel to use to make a transmission axle that has an
>integral gear? It's for a Yamaha RD400, I want to make one so I can
>use a dry clutch from a TZ. The heat treatment shop recommended 1045
>and induction hardening the gear and other wear areas.


Absolutely not !!

For a highly stressed gear on a high performance bike ( if you're dry
clutching it, I guess it's being souped up as well ), you need a good
quality gear steel case hardened to 58-62 HRC.

I use EN36A or EN39B if I can get it, there are American equivalents.
Any specialist case hardening gear steel will be better than induction
hardened 1045.


Cheers          IAN


See www.drysdalev8.com for :
- Drysdale 750-V8 Sports & 1000-V8 Cruiser
- DRYVTECH 2x2x2 Experimental
- Carberry Enfield 1000cc V-Twin
- Drysdale Hillclimb Open Wheeler

I would use 4340 cromo.

John Mead

--- On Wed, 4/4/12, tz350g <bradheiter@...> wrote:

> From: tz350g <bradheiter@...>
> Subject: Material for transmission shaft
> To: mc-engine@yahoogroups.com
> Date: Wednesday, April 4, 2012, 1:13 PM
> I'm sure this has been talked about
> before but I couldn't find it with the search
> function.  What is a good steel to use to make a
> transmission axle that has an integral gear? It's for a
> Yamaha RD400, I want to make one so I can use a dry clutch
> from a TZ.  The heat treatment shop recommended 1045
> and induction hardening the gear and other wear areas.
> Anyone know what Yamaha actually used?
> Thanks,
> Brad H   
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>     mc-engine-fullfeatured@yahoogroups.com
>
>

>I would use 4340 cromo.


4340 is not a case hardening steel, it will take a case, like any steel
will, but the specialist casing steels are called that for a reason.

"Hi-case" is one American trade-name case hardening steel, I've
never used it but have heard good reports.



Cheers            IAN


See www.drysdalev8.com for :
- Drysdale 750-V8 Sports & 1000-V8 Cruiser
- DRYVTECH 2x2x2 Experimental
- Carberry Enfield 1000cc V-Twin
- Drysdale Hillclimb Open Wheeler

Thanks, I didn't know Nova had them. I found it at
http://www.yamaha-tz-classicracing.de/uk/teile_getriebe.html and at about
$250.00 I'll probably, OK --will-- have more invested in it by making it myself.
I just bought an Abene horizontal/vertical mill (still working on getting it
hooked up and powered up) and want to use it to make the shaft myself.  Always
wanted to make a gear now's my chance.
Brad H
--- In mc-engine@yahoogroups.com, Caparo <caparo@...> wrote:
>
> On Wednesday 04 April 2012 18:13:18 tz350g wrote:
> > I'm sure this has been talked about before but I couldn't find it with the
> > search function.  What is a good steel to use to make a transmission axle
> > that has an integral gear? It's for a Yamaha RD400, I want to make one so I
> > can use a dry clutch from a TZ.  The heat treatment shop recommended 1045
> > and induction hardening the gear and other wear areas. Anyone know what
> > Yamaha actually used? Thanks,
> > Brad H
> >
> Hi,
> Graham Dyson of Nova racing makes these he was in Crowland lincolnshire uk.
>
> --
> TTFN
>    Caparo.
>

--- In mc-engine@yahoogroups.com, "tz350g" <bradheiter@...> wrote:
>
> I'm sure this has been talked about before but I couldn't find it with the
search function.>

Thanks to all who replied. I also found some info starting with message: 15728
titled: Aluminum alloy's cross-ref chart, as that thread goes it ends up talking
about gear steel.

My heat treatment place is concerned that if I use a case hardening steel for
the transmission axle there will be distortion.

Ian in that thread you mention using 4340 and nitriding instead of case
hardening.  Would that be an option here?  Or should I be looking for a heat
treat place that can do it in EN36 (looks to be 3310 in the US) with out
distortion?  8620 looks to be an available case hardening steel here but it
isn't EN36 in the specs I've found.

Brad H

>OK --will-- have more invested in it by making it myself. I just
bought an Abene
  >horizontal/vertical mill (still working on getting it hooked up and
powered up)
  >and want to use it to make the shaft myself. Always wanted to make a gear
  >now's my chance.


Commendable idea. but if you are cutting a gear on a mill, I'm assuming
that you will be using a "one tooth at a time" cutter ?   These cutters are
a compromise and I would be hesitant about using it on a gear for a high
speed application.  ( OK for gears for a hand winch for a yacht........ )
You really need to "generate" gears to be used at high rpm.


>My heat treatment place is concerned that if I use a case hardening
>steel for the transmission axle there will be distortion.


It bends, you straighten it......


>Ian in that thread you mention using 4340 and nitriding instead of
>case hardening. Would that be an option here?


I nitride the gear on my 1000-V8 crankshaft, but there are 41 teeth,
You are cutting 1st gear I assume, so 13 or 14T ?   Nitriding will
not stand up to the punishment that 1st gear gets in a high
performance motorcycle.


>Or should I be looking for a heat treat place that can do it in EN36
>(looks to be 3310 in the US) with out distortion?


A good HT shop knows how to "hang" parts so that they get
minimum distortion - but a lot comes down to the material.
EN36A doesn't move much in HT.   Get a piece of mild steel
case hardened and it comes out looking like a banana.

You can also rough machine the shaft out ( +3mm all over ) and
get it stress relieved before final machining.


>  8620 looks to be an available case hardening steel here but it
> isn't EN36 in the specs I've found.


8620 is a specialist forging steel, also with good case hardening
characteristics, it will be a good second to EN36A.


Cheers           IAN


See www.drysdalev8.com for :
- Drysdale 750-V8 Sports & 1000-V8 Cruiser
- DRYVTECH 2x2x2 Experimental
- Carberry Enfield 1000cc V-Twin
- Drysdale Hillclimb Open Wheeler

>I have a friend that is making some rocker arms from 4340.  He
>intends on Nitriding the surface that contacts the cam.  Will that
>work for wear properties or would it still be better to hardweld the surface?


I've never had any luck with "similar metal" rubbing surfaces and nitriding,
so no, I wouldn't recommend nitriding for a rocker - hard-face welding
would be better I think.


Cheers            IAN


See www.drysdalev8.com for :
- Drysdale 750-V8 Sports & 1000-V8 Cruiser
- DRYVTECH 2x2x2 Experimental
- Carberry Enfield 1000cc V-Twin
- Drysdale Hillclimb Open Wheeler

>>I have a friend that is making some rocker arms from 4340. He intends on
>>Nitriding the surface that contacts the cam. Will that work for wear
>>properties or would it still be better to hardweld the surface?

I had some frequent galling issues with the desmo rocker arms on the Ductax.  DLC coating by http://www.anatechltd.com/ completely eliminated the problem.  After coating them I couldn't tell used rockers from new ones.

Chris Cosentino
Cosentino Engineering
812 Jersey Ave. 3rd Floor
Jersey City, NJ 07310
201-392-1400
fax 484-340-1400
www.cosentinoengineering.com

Beautiful, but, no thanks.

 

John

 

---

 

 

 

Subject: Fw: Electric Bike

 

 

 

This comes from a London newspaper.  Sounds like a good, but expensive, idea.

 

 

Born to be mild! The electric motorbike that has all the creature comforts of a car

• The C-1 uses a stabilising system that keeps it upright, even at rest

• It features air conditioning ·

•  
•  
•  

If you like the thrill of the open road but love the comfort of a luxury car, this unique superbike could be the perfect solution.

The electric motorbike, dubbed the C-1, is a bizarre combination of car and bike and is set to hit our roads late next year.

Created by San Francisco-based automotive company, Lit Motors, the fully-enclosed two-passenger bike uses a gyroscopic stabilising system to stay upright even when it's stationary.

Clever: The C-1 stays upright, even when it's stationary

Luxury: The C-1 comes with a host of creature comforts with the makers claiming that it's a unique vehicle

The futuristic bike not only keeps its occupants warm and dry, it also keeps them safe - refusing to fall over even when hit in an accident.

More...

But this motorbike doesn't come cheap, it will set buyers back a hefty £15,000 with prices only dropping to £10,000 when production increases.

A spokesman at Lit Motors said many people had tried to create something similar in the past but no-one had succeeded.

He said: ‘No other vehicles on the road use gyros in this manner. There have been previous attempts but nothing like what we're doing.

‘Think of a child's spinning top toy, as long as it spins, it remains upright on its own, with no outside help. Similarly, as long as the gyros are spinning, the C-1 remains upright.

‘Ours is the only bike which stands upright on its own without training wheels.

Best of both worlds: The makers say their invention combines the safety of a car with the fun of a motorbike

‘This allows for a whole host of car-like features like a bucket seat, a steering wheel, a dashboard, climate control, a sound system, seatbelts and multiple airbags.

‘It is absolutely the first of its kind. The C-1 is a completely new class of vehicle, neither car nor motorcycle.

‘We have married the efficiency, agility, small size, and fun of a motorcycle with the stability, convenience, and most importantly the safety of a car.

‘The increased agility and smaller size as compared to a car means that many accidents can be avoided in the first place.

‘Rather than having to wear a helmet the driver can wear normal clothes, even a suit. The driver will stay safe being fully enclosed in a steel roll cage.

Green credentials: The C-1 is fully electric, so it doesn't contribute to urban pollution

‘We intend to take the C-1 around the world, starting in California and North America, then out to Europe, East Asia, Australia, South Asia, South America, and beyond.

‘We think it will be revolutionary and wildly popular. We're expecting a really strong following because we've created a new class of vehicle.

‘We've designed the perfect urban, commuter vehicle. It is fully electric, so not contributing to urban air pollution at all.’

There will be a place for something like this, eventually.
Cheers,
Rick

Not (yet) being an electric convert I think I'd rather have a similar
body on an MP3 (tilting 3-wheeler).

The Webster gearbox for the bevel twin Ducati is said to use
vacuum-melt 9310 for everything except the layshaft which was
8620.

cheers,
Michael

Just finished the first set.  Some pics are on the blog.

http://moto2-usa.blogspot.com/2012/04/first-set-of-tz250-cases.html

Chris Cosentino
Cosentino Engineering
812 Jersey Ave. 3rd Floor
Jersey City, NJ 07310
201-392-1400
fax 484-340-1400
www.cosentinoengineering.com

 

Just finished the first set.  Some pics are on the blog.

http://moto2-usa.blogspot.com/2012/04/first-set-of-tz250-cases.html

_._,___

 

Just finished the first set.  Some pics are on the blog.

http://moto2-usa.blogspot.com/2012/04/first-set-of-tz250-cases.html

Chris Cosentino
Cosentino Engineering
812 Jersey Ave. 3rd Floor
Jersey City, NJ 07310
201-392-1400
fax 484-340-1400
www.cosentinoengineering.com