This photo show a bit more detail of the panel gluing process. Epoxy won’t stick to wax paper, so I use that between the epoxy and anything I don’t want it to stick to. As you can see, the weights are improvised. I sawed apart a couple of 20 lb. dumb-bells that I no longer use for weight lifting, so that I would have four 10 lb. weights. For additional weights, bricks were easily acquired and very inexpensive.