The file 'Filadelphia 1.0 (Please Check Out 2.0 Instead) 3D Printer Model' is (stl) file type, size is 169.5KB.
Filadelphia is a standalone filament holder that prints in one piece without any supports on a Makerbot Replicator 2 with PLA.
Everything is modeled under angle so the wheels axes spin and stay in place without any assembly or additional parts or screws : Just print 4 of them, fold out the stands & click them together.
As proof of concept here's a timelapse of printing 8 Filadelphias (8 hours) ... fed by earlier printed Filadelphias :
https://www.youtube.com/watch?v=_c32D4GcHnY
Here you can see how multiple Filadelphias can interconnect in order to put multiple rails next to each other :
FiladelphiaConnector.stl | 45.5KB | |
FiladelphiaFilamentHolderFeeder.stl | 184.5KB | |
FiladelphiaFilamentHolderFeederDouble.stl | 365.0KB |