I need a couple of longish magnets to align the blades
on my jointer. Where does one buy magnets this size?
Does Home Depot have them?
I'd prefer not to buy the 40 dollar gizmo from Rockler,
just plain magnets.
Just built a jig like that last week. You can find ceramic magnets at
Lowe's, package of two for ~$2.25. Pretty darn strong, certainly more
than enough power to lift a knife. They're 1" long.
Alternatively, try Radio Shack, although every store in my area (NC)
seems to be out. Sears has ceramic magnets listed on their web site
("Skil" magnets), but I wasn't able to find them in the store.
Mon, Mar 10, 2008, 8:13pm (EDT+4) firstname.lastname@example.org (Puckdropper)
More generally: doth sayeth:
When I'm looking for cheap <tool>, I think Harbor Freight.
All depends on what you mean by cheap. I've bought welding magnets
at HF for $2 each, on sale, regular price $4-5 each. And have seen the
exact same magnet for sale at a welding supply company, same size, same
color, same packaging even, priced at $18 each. You look close at small
tools, up to an including bench saws, etc., and you'll see the same
stuff HF is selling, at lower prices at HF. When I bought my wood
lathes at HF, I paid $127. And saw the same lathe, different color,
selling for up to $300. I have NO problems shopping at HF. But if all
I wanted was magnets, there's plenty of places closer than HF I could
buy 'em - Ace, Wally World, etc.
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I think what he wants to do is lay the long magnet on the outfeed table so
it also contacts the blades. This would make the blade level with the
Not a bad idea. I wonder if you would have to first flatten the magnets.
Fine Woodworking web site shows a pair of jigs that you can make with
3 (6 total) ceramic magnets to set your jointer blade; you place all 3
magnets spaced apart on your jointer table, glue a piece of wood
across the 3 with silicone adhesive. After the glue sets, the magnets
are all in a plane. Place the jig so that one magnet is over the
blade, the other 2 over the table. Make 2 of these to set the blade.
Sounds pretty simple and I am going to make my sets pretty soon.
CB antenna bases are good sources of free strong magnets. So are
old loudspeakers or microwave magnetrons -- do be careful not to
touch the big oil filled capacitor, a full charge can be enough to
make flesh explode.
microwave magnetrons -- do be careful not to touch the big oil filled
capacitor, a full charge can be enough to make flesh explode.
On that happy note, I'll think I'll just spend a couple of bucks ;-)
Let is sit for a month. It should leak off. Very educational to
take one apart once it's dead. Magnetrons are just plain
cool looking, 1950s retro, like a prop from Forbidden
Planet. Just an empty can with two very strong ring
magnets on either end, yet it cooks perfect rice in
There's a HUGE high current low voltage transformer
in there feeding the death ray. Don't fuck with it. It's
even more lethal than the magnetron. Makes a nice
Don't bother putting the oven back together, because it's
designed to die whenever a consumer does something
amazingly stupid with a source of flesh-roasting em
radiation, like opening it up.
IIRC, someone, or some magazine mentioned a year or few back, using
"cow magnets" from local feed or ag store to align jointer blades.
(Cow magnets are round, about 1/2"D by 2 or 2 1/2" long. They feed
them to a cow to attract and hold any wire, etc. that may get
Find an old dead hard drive and take it apart.
They have NIB magnets that will give you a blister if they pinch your skin.
If you have the old 5" full height drives, some have magnets that will pin
YOU to the fridge.
I've disected HDDs and didn't find a magnet. How big is it and where is it
located? Sorry to be a putz but I shot up some HDDs and when I got them
apart, nothing found. They weren't so shot up that they were disintegrating
so I wouldn't think that I lost them.
Some REALLY OLD hd's do not have magnets. They have motors to move the
heads in and out.
The normal ones use "voice coil" head positioning.
These work like speakers that have a fixed magnet and a moving coil of wire.
When current flows thru the wire the head moves in and out very quickly.
Most 1/3 height 5.5" drives have magnets with keepers like those in these
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