Oh, wow. I had assumed that anything that cheap would almost be junk based on other threads I had seen. The machine I am planning is going to be around a 48"x48" machine with an 80/20 gantry, rack and pinion with dual X motors. I just did a quick calculation of the cold rolled steel and 8020 extrusions and am at around 75 lbs for the gantry, so I am guessing the overall gantry would be just over 100lbs.

I plan to use the machine for just about everything. The majority of it will probably be foam/wood/mdf cutting, but I also would like to be able to push through aluminum occasionally. With the 80/20 design, I understand aluminum cutting would be limited in speed not by motors, but more-so by the rigidity of the machine. In general, I like to overbuild things a bit so they hold up better and are a bit future proof. If the Nema 34 can help me cut through wood and foam much quicker, then it would be a no brainer for a small upcharge.