Due to the nature of the paper medium, the model may be sealed with varnish or filled with spray foam to last longer. Some enthusiasts may enhance the model by painting and detailing. In this kind of modeling, the sections are usually pre-painted, so there is no need to paint the model after completion. The parts are usually glued together with polyvinyl acetate glue ('white glue', 'PVA'). More frequently the printed parts must be cut out. Sometimes the model pieces can be punched out. Papercraft is the art of combining these model types to build complex creations such as wearable suits of armor, life-size characters, and accurate weapon models.

These pieces would be cut out, folded, scored, and glued together. Card modeling is making scale models from sheets of cardstock on which the parts were printed, usually in full color. Origami is the process of making a paper model by folding a single piece of paper without using glue or cutting while the variation kirigami does.

This may be considered a broad category that contains origami and card modeling.

Paper models, also called card models or papercraft, are models constructed mainly from sheets of heavy paper, paperboard, card stock, or foam.ĭetails Printable sheet to make a metro train of the Valencia Metro (Venezuela)

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