Had a go using motorcalc sheet but does not look right.

[Robin Hewitt]

I was expecting 500mm/min+, i.e. something around 10mm/sec

Well, maybe if the machine had another ton or so of cast iron to keep the toolpath sweet :heehee:

I suppose I could try it but suspect on a quarter ton machine I'd get horrible graunching sounds from a fat cutter and bits of shattered tool whizzing past my ears from the smaller sizes.

Have you actually tried cutting metal? :naughty:

(Slight exageration there, whenever the tool breaks it never seems to do anything more than drop off the shank, never whizzes anywhere) :whistling: