Okay, so I used it to build a tow skid for my E36 Fubari. I did a bunch of cuts in 1018 mild steel square tube, most of it 0.120 thick, and 1.125 solid rod of the same material. Also some 2 X 1/4 flat stock for gussets, and some 0.875 x 0.120 tube for bolt channel tubes.
Much quieter and cleaner than cutting with the grinder, and the cut is essentially a cold finish. I won't miss that grinder hassle for one second.
Takes a minute to cut a 1 x 2 x 0.120 tube. As in, you stand there and have time to catch your breath. As I understand it, this is the way band saws work. You can't walk away from it while it cuts, like you can with most of the on-floor models.
The vise for the work piece and the miter gauge are plenty steady enough for cage tube and the like.
When I was setting up 90 degree cuts in square tube for butt joints, it was worth taking five seconds to use a caliper and check the plane of the blade and the vise edge in two spots to verify parallel.
The vertical blade plane of the swing arm is good; it checks out as perpendicular to the floor of the vise.
The front blade guide has an adjustable blade slot plate for vertical alignment of the blade, and it works.
Three weaknesses:
No. 3 is the blade cover. It attaches with six little screws, making it a PITA to take off and put back on with every blade change. I need to replace them with some kind of wing nut posts or something.
The rear blade guide is the No. 2 weak spot in the machine. It slides back and forth horizontally on a slotted boom, and the instructions say to slide it out to get the wheels as close to the work piece as possible. It's reasonably sturdy when I tighten down the holding screw, but in the extended position it still allows a slight amount of blade twist. There's no adjustable slot guide to counteract that.
So on a piece of tube, the horizontal cut is square but the vertical cut has a slight pull to the rear at about 8 o'clock. I need to try running it with the rear blade guide retracted into its widest position and see if that makes it better.
The cuts are clean and it's only off a degree or so to that spot, and a 3-second blip of the cut in my Harbor Freight 12" disc sander squares it right up.
If I'm making a bracket cut or a slip-fit exhaust joint, there's no need to fuss with it at all. If I want weld a butt joint, it's still close enough to weld even with the little gap, if I have some way to clamp the work pieces square at the angle I want while I tack the weld. But for a perfect-fit butt joint, it's easiest just to pop it in the sander for 3 seconds so I can just use magnet clamps while I tack it. #
No. 1 weakness is the blade guide wheel bearings. They must be wear-prone because the Wen site sells replacements for $21 a side, AND the manual tells you not to use any cutting fluid because it will "damage" the wheels.
Only time will tell whether the blade drive wheel bearings and posts are durable.