We'll have maybe 100 guests, so creating that many individual 3D objects could be a nightmare. What we need is a way to automate it!
This instructable will show you how to quickly and easily create hundreds of 3D printed Napkin rings for everybody using completely free software. It could easily be changed to make other types of objects too...
(Please excuse the 3D print quality in the pictures - I'm still getting used to the printer!)
Step 1: What you need
I bought a SUMPOD (www.sumpod.com), because it was cheap, sturdy, and made in England, not very far from where I live. This is like most of the 3D printers you can buy now (MakerBot, UltiMaker, Printrbot) in that it prints upwards in layers using extruded ABS or PLA plastic.
On the software side, I'm using Linux as the Operating System. All the software below is available for Windows and Mac too, but it may be more of a hassle to install it.
Bash (comes with Linux and Mac, on Windows you might need MinGW : www.mingw.org)
On Ubuntu Linux, all you need to do is type the following command to install everything:
sudo apt-get install openscad imagemagick potrace pstoedit
On other operating systems you'll probably have to do a lot of googling!
You could always try using a Ubuntu Live CD (http://www.ubuntu.com/download/desktop) to boot up Ubuntu Temporarily and try this out. It's probably a lot easier than the alternatives!