Im new, am a 3D designer. Need a New cnc machine and need advice and guidance

[FlyHighRC]

Is it possible to make a good SOLID machine using extrusion? I have read mixed points of view about this stuff...Some say its really ideal for upgrading a machine in the future and provides a good solid frame while other say that its rigidity could be called into question.

I am able to get easy access to a welding machine and welder(friend) but would rather not go down that route( Cutting steel,jiging, powdercoating etc) If i can make a CNC from extrusion..that would be ideal. Though I wouldnt mind making the gantry out of thick steel screwed into the linear blocks. That wouldnt be a problem.

[JAZZCNC]

Is it possible to make a good SOLID machine using extrusion? I have read mixed points of view about this stuff...Some say its really ideal for upgrading a machine in the future and provides a good solid frame while other say that its rigidity could be called into question.

Yes it is possible but it needs to be done correctly and using heavy duty profile which is very expensive when you factor in the correct fixtures etc required to make it work. Flimsy 40x40 won't cut it and You certainly won't get much machine for £1500 using profile for the frame.
Steel in comparison is very cheap and stronger but requires more effort and skill on the builders part. If your on a budget then forget profile you just won't do it and have machine that's strong enough.