Shopsmith Forums

@JPG>12.7!
Why did not say that right away?????

ERLover wrote:@JPG>12.7!
Why did not say that right away?????

'Hind sight'.

So what are magnet cups (http://www.rockler.com/rare-earth-magnets-magnets) for if not to hold a magnet? Do you have to glue them into the cup?

Bruce wrote:So what are magnet cups (http://www.rockler.com/rare-earth-magnets-magnets) for if not to hold a magnet? Do you have to glue them into the cup?

The cups focus the magnetic force increasing their effective power. The magnets do not need to be glued into the cup.
Here is a link to magnetic cup information from the Lee Valley web site.
http://www.leevalley.com/en/html/99k3310ie.pdf

What what I take on it you can put a magnet in it, if using for a latch ect and then the washer is the mating surface. At least thats I surmised from WoodCraft site, they describe the cup ID to be the same as the magnets OD and the cup has a ribbed OD to hold in a mating hole with a press fit to countersink the cup.

ERLover wrote:What what I take on it you can put a magnet in it, if using for a latch ect and then the washer is the mating surface. At least thats I surmised from WoodCraft site, they describe the cup ID to be the same as the magnets OD and the cup has a ribbed OD to hold in a mating hole with a press fit to countersink the cup.

The 1/4" size are press fit in the hole, the larger sizes are attached with a screw before the magnet is installed.
http://www.leevalley.com/en/wood/page.a ... 42348&ap=1

So it looks like the cup is an option to gluing the magnet in the hole, and if you put a slot in the side of the cup, you can even remove the magnet if you so desire at a later date. Now, anyone know what the high-friction disk is for? Sorry Berry, I didn't intend to hijack your thread. Hopefully you have your answer.

Bruce wrote:So it looks like the cup is an option to gluing the magnet in the hole, and if you put a slot in the side of the cup, you can even remove the magnet if you so desire at a later date. Now, anyone know what the high-friction disk is for? Sorry Berry, I didn't intend to hijack your thread. Hopefully you have your answer.

This is the directions for the high-friction disks from the Lee Valley site.
http://www.leevalley.com/en/html/99k3904ie.pdf

The magnets are typically(not always) magnetized axially. i.e. north pole on one end and the south pole on the opposite end.

The cups provide a magnetic path so there is both a north and a south pole at the outer surface of the cup/magnet. This creates a greater 'pull' than one pole alone. A steel/iron washer provides closure to the magnetic lines from the north pole to the south pole.

As if these things were not strong enough to begin with.