As 3D printing expands, consumers now can purchase their own 3D printers to make anything from sculptures to 3D weaponry. In the aftermath of this technology's expansion, a number of groups have spring up online dedicated to the mistakes that occur when manufacturing 3D objects.

One of these groups is "The art of 3D printing failure" on Flickr, created by enthusiast Richard Home and similar group 3D printing failures on Pinterest.

Here is a collection of some of the best failures on the web.

Pictured above is Chris Cecil's "robosprout," a failed attempt at a wheel cog.

Image credit: Flickr

This post was originally published on Smartplanet.com