The latest structure is for the Slag reclamation Plant it's for unloading broken up slag from Side dump cars part of a crushing plant here is the unloader before it gets it's cladding. That's 3mm MDF I hand saw or scribe most of it and wear a respirator mask for the dust. A few clamps are handy to hold it together. Sorry it's not much of a photo but sometimes it's good to see how other people build things and what materials they use. I could have used 3mm styrene or even 2mm for this instead of the MDF but it's very expensive compared to the MDF price and I have to keep costs down somehow. Roo.