Thread: Ferrous swarf

Just something to think about as that magnet sounds strong,
Be careful the magnet doesn't magnetize the table or surrounding things, or you will have the swarf sticking to everything all the time which would be a pain.

Dave

Originally Posted by Stustoys

We my well be Brett
"I've seen your size, and seen you try to lift off the table."?

Didn't you do a video review of Magswitch during which you tried to pull the 50 square off the table saw table (?) and then go on to talking about the shearing effect of diagonal removal?

Mdf: what I mean is to get a slab of cast iron with a slab of mdf over it and attach a mag 50 on top of the mdf - will the mag 50 have any attraction to the cast iron through the mdf? But if you don't have one then...........
This is in line with Davej's comment about everything sticking to the table while the mag is "on". If the magswitch doesn't have any grab through the mdf then one would think that they are all going to stick to the magswitch inside the plastic bag. If there IS a magnetization of the table through the mdf then as Dave says there will be some swarf that sticks to the table.

Two minutes into this video
http://stusshed.wordpress.com/2009/0...-46-magswitch/
There's a reasonably substantial fella trying to move the magswitch around the iron table. The switch in question is rated at 500 pounds which means it will lift an entire 220kg table saw off the floor (he isn't THAT substantial).

If it will do that, then it's gotta be able to grab some pissant swarf!

Brett

Not me sorry
The problem with magnets is their strength falls off very rapidly with distance. I tried some of the large magnets I have, one that I can only remove by sliding. Putting a piece of 18mm MDF(that's what I meant by gap) between the magnet and the bed of my mill, they won't even support their own weight. If the magnet gets hold of the swarf it will hold it but if the drill throws it the other way I doubt its going to suck it back as it were. The magswitch maybe a little better but I doubt it.

Stuart

Stuart - apologies, a case of mistaken identity (stustoys, stusshed, he makes toys as well, both in Melbourne etc). I'm thinking "this blokes dropped his apples, reckons he doesn't own a mag 50 and I've just been watching him say that he uses it for all sorts of jobs". LOL.

I'll see if I can send a private message to Stuart Lees to have a look at this thread because I think he'll be able to supply the answer.

Regards, Brett

No worries Brett
Hope you can make it work.

Stuart

I agree, I have to line up the magnetic pick up tool in the path of the swarf that is coming off for it to stick to it. With a drill the swarf is unpredictable in which direction it will come of.

Brett
To stop the long swarf, just raise the drill bit often when drilling, and that it will break the long spirals down into short ones. It is recommended and safer drilling doing it this way because if a long strand caught your hand or arm it will cut like a knife.

I have have a metal work side in my shed and I am lazy, so I let it fling around and clean it up latter. On the mill you can contain it, but it's hard to do the same thing on the floor pedestal drill. Let up know how the magnet works out.

Stuart,
I like your plastic container idea,


Dave

I bought one from these blokes about a year ago (no realationship to seller)

Magnetic Wand -Catch metal filings & offcuts 22 x 250mm (eBay item 310232685503 end time 06-Dec-10 15:39:43 AEDST) : Industrial

It's just a cheaper version of the Serpent & Dove Wonder Wand for about a fith the price. I think it's just a neodymium magnet in a sealed off copper tube with a rubber ring to stop the swarf from following the magnet up the sides, you could make one yourself but it would probably end up costing the same.
It works great for cleaning up swarf from the floor and not bad for cleaning the lathe tray, but as Dave mentioned it can magnetise a tool or vice which can be a real pain.
I haven't tried to use it to control swarf but I guess it would probably kind of work.
Cheers,
Greg.

The magnetic strip inside refrigerator door seals is useful for collecting small metal shavings/ swarf . It is also handy if you drop a small drill or screw/nut/washer (steel) on the floor.
Russell