Hey Lee,

Yeah, I redesigned this one since steel was nice but allot more fiddling about with the design and having to do different things to avoid resonance which seems cant be escaped from when using a steel machine so decided on an aluminium design where resonance isnt as much of an issue at all and also no Welding!!! The only downside here is big fat aluminium sheets but that adds allot haha.

Well I have spoke to Dean(Jazzcnc) who has been helping me with this design. He also pointed out the gantry...so I will be using 120x40 extrusion for the gantry and shifting the motor,ballscrew assembly behind the gantry since that wont affect the cutting area :)