One of the attitudes to recycling plastic in architectural design is it re-printing. 3D Printing of recycled polyethylene tereftalate is in its birth-days. Recycled filament can be bought in Argentina or Netherlands but lack of experience with this reborn material blocks its use in the Czech Republic. Firstly we made a study of settings of the home-3D-printers for this material. Secondly we came with a crowd printing project, which tested the possibility to print structural pieces by on various low-cost printers.