magnets instead of spider

[Mark Rand]

That will work as long as you don't mind a magnetized chuck.

Brian

Cast iron doesn't tend to magnetize at all well. High Speed Steel tool bits on the other hand magnetize if you even look at them cross eyed..

[Doozer]

Swarf sticking to magnets is MADNESS of the highest order.

--Doozer

[bborr01]

That will work as long as you don't mind a magnetized chuck.

Brian

[macona]

I have done that to hold parallels to the chuck.

[dian]

i have 10 neodyme magnets, 3 x 8 mm. i was easyly able to pic three, that are within 0.002 mm in thicknes. so i stick them on the outside jaws as spacers. actually i can use all of them and stack them up, as they all are within 0.01 mm.

if you measure them, the trick is to open the micrometer just enough to slide them in, to keep out the swarf. on the chuck, just put a tape on them, to remove the swarf.

so i dont have to make spiders after all.