Magnets: What's a good source and how measure need?

[tmenyc]

I'm looking to convert a desk task lamp to a lathe lamp; it has a good strong gooseneck and solid base. Want to remove the base inside the decorative base and replace it with a magnet. I've seen buymagnets.com...is it any good? McMaster?

Second, how does one measure magnetic force and how do I know I have enough magnetism?

thanks
Tim

 

[Kroll]

Don’t know if this work but they are strong,at Home Depot in welding Dept they sell magnet for the grounding cable which has I think a 3/8 bolt stud maybe that would work

 

[tmenyc]

Think I found my answer on Amazon. Far cheaper...I just need to get the specs straight and find one with a small enough center hole.

 

[tmenyc]

Don’t know if this work but they are strong,at Home Depot in welding Dept they sell magnet for the grounding cable which has I think a 3/8 bolt stud maybe that would work

yes, saw it...thanks!

 

[Reddinr]

I've used kjmagnetics.com. Pretty much every shape and size of magnet you might want. They list the pulling force in pounds for most of their magnets.

 

[DAT510]

+1 for K&J Magnetics.

Here's their Magnet Calculator: https://www.kjmagnetics.com/calculator.asp

 

[middle.road]

Salvage an old hard disk drive. The magnets out of 'em are nice. I use them all over the shop.

 

[RJSakowski]

Banggood has a good selection for decent prices.
https://us.banggood.com/wh_buy/Usa/Magnets-neodymium.html

 

[tmenyc]

thanks, I'll try all of these....and I do have old hard drives, should've occurred to me!

 

[derf]

Are you sure you want to do this with magnets? They will attract chips from the other side of your shop....I swear.