On Sun, 1 May 2016 17:00:20 -0700 (PDT), wrote:

On Wednesday, April 3, 2002 at 10:04:29 PM UTC-4, George Glines wrote:
Not kidding. My son's teacher asked me to make 1 cup of iron filings for
the 4th grade class magnetism experiments. Sounds like a real mess. I was
thinking of put some sheetmetal screens on the milling table to catch the
filings and using a roughing endmill on really fine feed to grind up a round
bar of cast iron I have.

Any better ideas on a cutter or method would be appreciated.

Thanks,

George
http://www.teachersource.com/product...city-magnetism

http://www.amazon.com/Iron-Filings-1.../dp/B008MB17GA