I have had one of these tables for about a year. I found it to be very accurate when used with a Hypotherm 1000 and small consumables. My lower back did not like having to lift/drag sheets up between the guide rails. The 1/2 plate was a real killer! The 4X4 size was rather limiting even though you could index the sheet through. No matter how carefull, there was always a "step" in the cut. I finally got mad and made it 4 X 10 with a roll in table. It was a lot of work but I just ran the first job through - a 12 gauge stainless steel conveyor frame project on it and it performed good. Now I flop a sheet on the roll in table, run it back between the rails and hit go. When all the cutting is done, roll it back out and remove the parts and skeleton. The hardest thing was to weld the rails together straight, get them square and paralell with each other and make their supports completely adjustable. I am pretty sure I can cut a line 120" long and be withing .030 of being straight. I have also thought of a way to fine tune this to virtually perfect. The z axis has very little range so the whole thing must be flat and the rails must be the right height off the table all across also. I developed the whole works on acad and cut any parts I needed on the table before dis-assembly. The only parts I brought in from Colorado where three more rail sections. The cables were plenty long enough for How I did it. The new grates can be cut on itself. The whole thing is heavy and sturdy. I'm sure I could cut a whole 4X10 1" plate. This project is not for the faint of heart. I have a full machine/fabricating shop and 26 years of precision metal fabrication experience that came in pretty handy. I stopped short of making the ganty a foot longer - let somebody else figure that out!