Gutter CAD

The gutter of the Seed Eco-Home of 2016 costs $250 from Menards, and when the first flush diverter + delivery plumbing to the rainwater cistern is considered - the BOM cost totals around $500.

That is a substantial savings if the rainwater catchment system were considered alone. But the savings keep adding up. Add $350 for aquaponic towers - [50] $7. If overall plumbing and water system for the entire house is considered, not counting water purification - the total is around $1000. If you add water filtration - that is another $450, and adding hydronics is another $500. The bathtub, shower, sink, and toilet can likewise be printed - for another [https://docs.google.com/spreadsheets/d/1ocyDXdoDnk8eF9wCpjm_j9q2r-LYQ0gJFBPSDvz5hkM/edit#gid=1971306713 $825. Duckweed gutters are another $200. $400 for the cisterns. All together, the total is approximately $3400 in savings.

Add to that the polycarbonate twin-wall glazing -

The weight of all this is about 1000 lb - so given 20 cent per lb production costs of objects made via 3D printing (in the scenario of full automation and 10 cent/lb feedstocks) - this would cost $200 in production cost assuming full production automation - so a savings of about 7x.

For rainwater catchment - Click on the 5 components to see the links:

This is a perfect case for import substitution with 3D printing, and OBI/OSE is planning to print plumbing for the 2017 iteration of the Seed Eco-Home.