MDF CNC Router plans / parts for home build beginners

[gorbo]

I am also a newbie and I expect that when I build my machine it will cost me £1000+ because I want it as good as I can get it, when you consider this is done over a year its not to bad, some hobbies cost money, a lot of money that's the way it is but having said that, if someone can build a good machine below £1000 please give me your tips!!

[Robin Hewitt]

if someone can build a good machine below £1000 please give me your tips!!

A "good machine", as in 'commercial', would have a cast iron gantry.

If you don't have chums at the foundry, a cheap alternative would be box section iron filled with concrete and don't be mean with the cement when you mix it.

Heavy kills vibration, concrete resists bending when you load it.

1 pound force will accelerate a mass of 32.16 lbs at 1 ft/s/s.
1 Newton will accelerate a mass of 1kg at 1 m/s/s
A 1Nm motor on to a 5mm pitch screw will give you 125N thrust.