Breakthrough Drive Train Shifts Under Full Load & Is 99% Efficient

Need to ride a copy a 100,000 km to make sure it's reliable

https://www.yahoo.com/news/chainless...093525936.html

On 24/09/2019 21:41, Bret Cahill wrote:
Need to ride a copy a 100,000 km to make sure it's reliable

https://www.yahoo.com/news/chainless...093525936.html

Well done to find the link. Interesting. Looks like it will require a
lot of machining, even in mass production, so perhaps the first question
is how much will it cost?

On Tue, 24 Sep 2019 22:30:13 GMT, TMS320 wrote:

On 24/09/2019 21:41, Bret Cahill wrote:
Need to ride a copy a 100,000 km to make sure it's reliable

https://www.yahoo.com/news/chainless...evolutionizing
-093525936.html

Well done to find the link. Interesting. Looks like it will require a
lot of machining, even in mass production, so perhaps the first
question is how much will it cost?


In words:

https://www.designboom.com/technolog...ss-bike-07-10-
2018/

(No costs)

I suspect it'll not be so good in muddy (i.e. most UK) conditions.

--
Bah, and indeed, Humbug.

On 25/09/2019 10:35, Kerr-Mudd,John wrote:
https://www.designboom.com/technolog...ss-bike-07-10-
2018/

49% less friction?

Yet another person that can put numbers in a calculator but has no idea
idea what they mean.

https://www.designboom.com/technolog...ss-bike-07-10-
2018/

49% less friction?

If chain friction is 2% and this loses 1% then it cuts the friction in half.

Going from 98% efficiency to 99% is certainly tweaking but 1% can make a difference in some time trials.

That's not the selling point for the mass market.

Need to ride a copy a 100,000 km to make sure it's reliable

https://www.yahoo.com/news/chainless...093525936.html

Well done to find the link. Interesting. Looks like it will require a
lot of machining, even in mass production, so perhaps the first question
is how much will it cost?

After a few million copies the initial cost should approach that of a chain.

The real issue is overhead, durability and reliability. Even if they don't enclose the gearing it has less exposed area and moving parts to attract dust than a chain. If it can last 3X - 10X longer than a chain then this could be the end of the chain.

This idea is too valuable for a start up. They need to get Shimano or some place with real engineers on it ASAP.


Bret Cahill

On 27/09/2019 05:18, Bret Cahill wrote:
https://www.designboom.com/technolog...ss-bike-07-10-
2018/

49% less friction?

If chain friction is 2% and this loses 1% then it cuts the friction
in half.

I know what they are trying to say but my comment was about the person
feeding the engineer's figures into the calculator.

On 27/09/2019 05:38, Bret Cahill wrote:

This idea is too valuable for a start up. They need to get Shimano
or some place with real engineers on it ASAP.

Companies like Shimano don't like paying licence fees to inventors.

This idea is too valuable for a start up. They need to get Shimano
or some place with real engineers on it ASAP.

Companies like Shimano don't like paying licence fees to inventors.

It's insulting to their _own_ inventors.

On 27/09/2019 09:47, TMS320 wrote:
On 27/09/2019 05:18, Bret Cahill wrote:
https://www.designboom.com/technolog...ss-bike-07-10-

2018/

49% less friction?

If chain friction is 2% and this loses 1% then it cuts the friction
in half.

I know what they are trying to say but my comment was about the person
feeding the engineer's figures into the calculator.

Here's an example of calculatoritis I found on a site talking about the
temperature of the Raspberry Pi. Apparently, 49C is 80% hotter than 27C.