My background: Mechanical/Metallurgical Engineer with ~4 years machining on manual machines and dabbling on a VMC with Mastercam.
Ive decided on a Tormach PCNC for hobby and educational use, but can't decide between the 770 and 1100. Anticipated use would be ~50/50 steel and aluminum, with occasional Stainless/Ti/Inconel. Probably not a lot of 3D surfacing that the 770 would be better for. But I also cant think of many parts that I wouldn't be able to fit in the 770 work envelope. Speed/productivity is not a serious concern.
Original thought was go for 770 because of cost and then be able to afford some tooling. Now I'm reconsidering saving for the 1100. So how many 770 owners wish they had the 1100 for its bigger travels, spindle power, and rigidity?