Home made solenoid


by Fenster Karton
Tags: home, solenoid
Fenster Karton
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#19
May8-13, 07:07 PM
P: 10
Quote Quote by Danger View Post
An "impulse drive" using a solenoid is a mass driver; ie: a rail gun. The neighbours probably won't appreciate any serious experimentation with it.
It ejects nothing. You are jumping to conclusions.
Fenster Karton
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#20
May8-13, 07:11 PM
P: 10
Quote Quote by berkeman View Post
That Impulse Drive thing looks to be crackpot. The only way to get net thrust is to eject the "billiard ball) or whatever you are accelerating. The book appears to imply that you can capture and re-use the ball. Am I missing something?
The sum of the moments is made asymmetric by an elastic collision. I'll be finished building soon. No one has answered my question regarding the iron on the outside of the coil. I am assuming I need it.
Danger
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#21
May8-13, 07:27 PM
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Quote Quote by Fenster Karton View Post
It ejects nothing. You are jumping to conclusions.
If it ejects nothing, it doesn't work. That is a simple fact.
Fenster Karton
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#22
May9-13, 09:44 AM
P: 10
I will post my findings.
Danger
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#23
May9-13, 10:55 AM
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If I weren't on supplemental oxygen, I'd hold my breath in anticipation.
Fenster Karton
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#24
May10-13, 04:38 PM
P: 10
Quote Quote by Fenster Karton View Post
I am building this. http://www.amazon.com/dp/B00BXWNG96

How important is the iron on the outside of the solenoid?
not having a spring scale I can only comment re "feel" and as far as I can tell the outer iron doesn't affect much more than holding power, ie the last bit of travel.


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