Using a metal cutting burr with a router...?

[njhussey]

You could use an angle grinder to get the bulk of it out and then use a hand router with a carbide milling cutter in it to get it nice and flat? You can use a CNC router to cut Cast Iron (others on here have done it, I've even cut steel with mine.....slowly!) so no reason (apart from being scary and having lots of scalding metal chips flying around!) why you couldn't.

[mekanik]

Hi Jo
As Neil said a rotary burr will do the job, my only experience is using them in a die grinder on steel, throws out nasty needles that get everywhere, cast iron should come off more like powder, make sure you have a good quality mask and adequate eye protection, it's nasty if you get it in the eyes.
Good Luck
Mike

[noyloj]

Thanks guys!

Yes that's exactly what I had in mind!

I used to have a Dremel which I might have used to finish up with but I gave it away to my daughter who carves wax for lost wax jewelry castings with it now...

I'll let you know how I get on and post it up in my build log.

[noyloj]

Oops, forgot to ask is there any particular kind of burr/cutter I should be looking at using?

And do I need lubrication?

Thanks

[mekanik]

Don't know if a Dremel would be upto the job anyway, we used 6mm shank burr.
Mike

[mekanik]

Should be ok cutting dry, will tend to clog if you use something oil based.
http://www.ebay.co.uk/itm/10pcs-6mm-...tary-Drill-Die

[noyloj]

Groovy! Thanks!