Well I actually finished this about a month ago. It was about 4 weeks in the making on and off.
Probably about 120 hours of actual printing time on my Ender 3 S1 PLUS and about 6 hours of gluing. This is at 1:20 scale or 5% scale of the STL file in the CURA scale tool. All filament was purchased at 3D Printing Canada. Canadian PLA+. Love that stuff.
I designed the actual system for a client in Nevada with Solidworks so I am including an image of the 3D model of the actual design. The grizzly and ore pass is not included yet. I may add that down the road. Time will tell.
I have done a similar thing where I retired from. Large fabrication in the USA.
Shots are from our cad program, the actual fabrication on site and my print.
It was a 40 ton piece of steel.
We use Tekla Structures, have been for 25 years. I had to augment the file due to the 4% scale, adjust plate sizes so they would actually print. 25mm plate would become 1mm thickness so anything thinner had to be upsized for print.