Desktop 3D printers

[nvrr49]

A couple stone arch bridges I designed and printed. Both HO scale. Design and construction details can be seen at: <!-- m --><a class="postlink" href="http://nvrr49.blogspot.com/2014/06/stone-arch-bridges-3d-printed-down-on.html">http://nvrr49.blogspot.com/2014/06/ston ... wn-on.html</a><!-- m -->