Resin cost: We are working on an all new, extremely high perfomance, low cost resin that is specially formulated for the Peachy Printer! In the past we have seen resin prices of $200/litre. Thanks to Josh Ellis and his company Maker Juice, we now have a fast acting resin that only costs $60/litre! You can also get more use out of your resin by using resin fillers. The little cube pictured above is about 2 cubic centimetres. With one litre of resin you could print approximately 500 of them, each costing around $0.12 to make. The hollow cube pictured below could be printed approximately 2000 times out of one litre of resin at a cost of about $0.02 each!

Source:
http://www.peachyprinter.com/#!printer-specs/c1gk6