The Flywheel ?

Author Topic: The Flywheel ? (Read 91223 times)

Matt Watts	Re: The Flywheel ? « Reply #100 on: 2014-08-09, 20:52:14 »
Newbie Posts: 809	Quote from: Grumage on 2014-08-09, 19:58:33 A rather "Heath Robinson" attempt at the Harold Aspden effect !! Grum, is your motor a DC brushless type? I ask because my Baldor motor does have brushes and I notice slight deviations with almost every run and especially if I change directions and go back--pretty sure it has to do with brush wear.

Grumage

Re: The Flywheel ? « Reply #101 on: 2014-08-09, 22:11:50 »

Group: Renaissance Man
Hero Member

Posts: 3095

Quote from: Matt Watts on 2014-08-09, 20:52:14

Grum, is your motor a DC brushless type?

I ask because my Baldor motor does have brushes and I notice slight deviations with almost every run and especially if I change directions and go back--pretty sure it has to do with brush wear.

Dear Matt.

My motor is a 4 pole PM field with 4 brushes. Perhaps, you too, are seeing the effect !!

It is strange. If you leave the motor and flywheel to rest for a few minutes it always takes longer to run up !! I wish I could afford a data logger that could see the watt's in real time, that, I think would be a real eye-opener !!

Cheers Grum.

---------------------------

Nanny state ? Left at the gate !!

ion

Re: The Flywheel ? « Reply #102 on: 2014-08-09, 22:14:23 »

Group: Elite
Hero Member

Posts: 4127
It's turtles all the way down

Quote from: Grumage on 2014-08-09, 19:58:33

Dear All.

A rather "Heath Robinson" attempt at the Harold Aspden effect !!

https://www.youtube.com/watch?v=m85GS5APXfk

Cheers Grum.

Nice job, Grum and Son, a smooth running assembly. Those sure are nice flywheels in your shop.

A nicely performed experiment. I think the first run up was 40.6 sec. Maybe time for us to read again the Aspden paper........did he spin magnets?

Thanks for the video update.

Have a nice weeks end and watch your fingers!.

Kind Regards, ION

---------------------------

"Secrecy, secret societies and secret groups have always been repugnant to a free and open society"......John F Kennedy