0
  • Around 250 000 orders per year
  • Customer service in 3 languages
Shopping cart

Your shopping cart is empty.

No idea? Have another look at our bestsellers.

View our bestsellers

français english deutsch nederlands italiano español
The product was added to your shopping cart.
Go to shopping cart

Magnet catapult

Hobbyists can now re-enact battles of the ancient world!
Author: Rob Gallagher, United States
Online since: 07/04/2009, Number of visits: 340884
0
Opposite poles attract each other, like poles repel - and it is this repulsion that can be harnessed, for example with this magnetic catapult.
After watching a period film about the siege of the Masada fortress by the Roman army, I too wanted to build a catapult.
For this purpose, I used the strong repulsion of two large disc magnets. 3 possibly options are linked below.

Damaged juggling balls
Damaged juggling balls
I built this shooting device from red oak. On the left, near the magnets, I placed brass fittings and on the right I put steel nuts and bolts near the joint.
For "ammunition" I used juggling balls.
The magnetic catapult shoots the juggling balls to a distance of about 3 metres! As you can see in the picture, the balls burst due to the strong impact.
I had a lot of fun with this little project.

Addition 2018

YouTube user RLScience also built a mighty magnetic catapult – even with two arms. For that, he used the repulsion of 3 Goliath magnets. In his video, he explains the assembly in detail (in German only).

Articles used

Load...
S-30-10-N Disc magnet Ø 30 mm, height 10 mm, holds approx. 20 kg, neodymium, N45, nickel-plated
S-30-10-N
Disc magnet Ø 30 mm, height 10 mm, holds approx. 20 kg, neodymium, N45, nickel-plated
S-30-10-N Disc magnet Ø 30 mm, height 10 mm, holds approx. 20 kg, neodymium, N45, nickel-plated
1 pc. 8,57 EUR ea.*
from 3 pcs. 7,52 EUR ea.*
from 10 pcs. 6,57 EUR ea.*
from 20 pcs. 6,12 EUR ea.*
from 40 pcs. 5,72 EUR ea.*
Ask for a rebate from 120 pcs.
Available: 3 843 pcs.
S-30-15-N Disc magnet Ø 30 mm, height 15 mm, holds approx. 24 kg, neodymium, N42, nickel-plated
S-30-15-N
Disc magnet Ø 30 mm, height 15 mm, holds approx. 24 kg, neodymium, N42, nickel-plated
S-30-15-N Disc magnet Ø 30 mm, height 15 mm, holds approx. 24 kg, neodymium, N42, nickel-plated
1 pc. 12,79 EUR ea.*
from 3 pcs. 11,31 EUR ea.*
from 10 pcs. 9,99 EUR ea.*
from 20 pcs. 9,36 EUR ea.*
from 40 pcs. 8,78 EUR ea.*
Ask for a rebate from 120 pcs.
 
Receive e-mail when item available again
S-35-20-N Disc magnet Ø 35 mm, height 20 mm, holds approx. 38 kg, neodymium, N45, nickel-plated
S-35-20-N
Disc magnet Ø 35 mm, height 20 mm, holds approx. 38 kg, neodymium, N45, nickel-plated
S-35-20-N Disc magnet Ø 35 mm, height 20 mm, holds approx. 38 kg, neodymium, N45, nickel-plated
1 pc. 19,76 EUR ea.*
from 3 pcs. 17,49 EUR ea.*
from 10 pcs. 15,45 EUR ea.*
from 20 pcs. 14,46 EUR ea.*
from 40 pcs. 13,58 EUR ea.*
Ask for a rebate from 80 pcs.
Available: 55 pcs.
Goliath Block magnet 70 x 70 x 30 mm, holds approx. 150 kg, neodymium, N40, nickel-plated
Goliath
Block magnet 70 x 70 x 30 mm, holds approx. 150 kg, neodymium, N40, nickel-plated
Goliath Block magnet 70 x 70 x 30 mm, holds approx. 150 kg, neodymium, N40, nickel-plated
1 pc. 148,54 EUR ea.*
from 3 pcs. 140,26 EUR ea.*
from 10 pcs. 132,86 EUR ea.*
from 20 pcs. 129,26 EUR ea.*
from 40 pcs. 126,07 EUR ea.*
Available: 99 pcs.
0 people like this customer project
-Projects are bookmarked in your customer account

This might also interest you

Levitation with copper Levitation with copper
Remove iron filings from magnets Remove iron filings from magnets
Ferrofluid fountain Ferrofluid fountain
Magnetic data storage model experiment Magnetic data storage model experiment

keywords

The entire content of this site is protected by copyright.
Copying the content or using it elsewhere is not permitted without explicit approval.