Have you ever seen an injection moulding machine that can produce something the size of a pallet? Do you know how much energy it takes to run one and how much expertise to keep it running? How much it costs? How much energy is required to power the recycling process?
These machines are viable because they run continuously (at least, when they're not broken).
You don't make them 'on-site', you make them in a thing called a factory because that's the only place where you can get the economies of scale to justify your capital expenses and your operational overhead as well as your energy supply arranged in such a way that you'll turn a profit.
I'm all for decentralization but there are good reasons why the word 'easily' is not applicable in the sentence above. Annoyance does not come into play until you've figured out how to do this economically.
You wouldn't use injection molding for a pallet - it's too big. However compression molding is an option. It's not as accurate as injection molding, but it's significantly cheaper. Or at least it is at the scale my father-in-law works at when he makes plastic pallets :). His pallets are custom designed for a specific industry to fit in their manufacturing and logistics workflow.
I thought about this from reading about some of the materials the architect Shigeru Ban works with. He has skinned buildings with board made from hot rolling a mix of plastic and paper from packaging waste.
http://i01.i.aliimg.com/photo/v0/1830977371/plastic_pallet_i...
These machines are viable because they run continuously (at least, when they're not broken).
You don't make them 'on-site', you make them in a thing called a factory because that's the only place where you can get the economies of scale to justify your capital expenses and your operational overhead as well as your energy supply arranged in such a way that you'll turn a profit.
I'm all for decentralization but there are good reasons why the word 'easily' is not applicable in the sentence above. Annoyance does not come into play until you've figured out how to do this economically.