The big bin isn't something I really want to look at every day, it just wouldn't fit in this setting.
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The trash compactor might make an interesting test though I suspect it may mot make enough pressure as the chips, mostly from the VMC's are pretty firm and springy. I agree the small machine may not be feasible economically to build but my small press experiment similar to the pipe sample above leads me to believe I can compress them 12 to 1 making it look pretty worth while because of my location. One of the problems associated with moving to the middle of nowhere but we knew this as well as getting material in. I have checked with the two scrap yards easily available to me and they both are willing to take our compressed pucks at the same rate as chips, no premium but at least at the same rate. The close one is 60 miles away to the north and the other close to 200 south, the one to the south will pay more and I likely can get Wonder woman to haul them as there is shopping there and she has a mother to visit, I imagine I would have to go the first time but after that she would be fine. I guess this is as I expected, something I will need to build. Over the last couple of years in thinking about this as a possible project I first thought about hydraulic and the complexities listed above as well as listening to the hydraulic whine and decided something more mechanical looking perhaps a bit like an old hit and miss engine, I have a couple of those I could rob for parts.