Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

gauss rifle project

gauss rifle project

gauss rifle project

Hello. My question is in regards to the gauss rifle project described here: http://scitoys.com/scitoys/scitoys/magnets/gauss.html

1. Is it possible to increae the strength of the Nd-Fe-B magnets by running an electric current across them?

2. While i'm not familiar with magnetics, I imagine the above may not be possible. If not, is there a way to calculate the the strength of the Nd-Fe-B magnet and then create a matching rig of round electromagnets (just iron rings, copper wire, electricity) through which the steel balls can be accellerated?

Thanks for your help.

RE: gauss rifle project

Hello attractgeek

1. If you wrapped the coil _around_ the magnet (instead of across the magnet), you will temporarly boost the power of the magnet, but by only a very small amount.  One would have to run a few hundred amps of current to produce a measurable effect.

2. The web sites of most magnet manufacturers have calculators to determine the magnetic strength of simple shapes (e.g. www.dextermag.com), so you could use them to determine the field strength required.  However, you are likely to find that you will need to supply a large amount of current to equal the strength of Nd-Fe-B magnets.  They are very potenet magnets.

RE: gauss rifle project

Thanks MagMike!

I'll see what kinds of experiments i can do on this and post results.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close