Intro to 3D printing

Here was a meetup sponsored by Uniform Chicago. There were not any coding tips here, but close to my home and I figured it would be good to get up to speed on some new technology.

I discovered how 3D printing is an additive technology, meaning it starts with nothing and adds material. This is opposite of a CNC machine or sculpture which removed extra material from a block.

3D printing does involve learning to use a CAD type program to design your object. This is the most difficult part of the process. There are many programs available and the recommended one was FreeCAD.

The most common materials used are PLA or ABA. Which material you use depends on the 3D printer that you have. Higher end printers have much better output with smoother designs than cheaper printers which you can see lines and grooves on your objects. Imagine a lego as a higher end printout.


Thingiverse is the "github" of 3D printing. People who have created a design often post the design pattern for free on this website. If you are trying to print a common plastic item, check here first.

You do not have to own a 3D printer to get started. Many libraries and some office supply stores have printers. There is also a local network of people who will let you print from their 3D printer called 3hubs.com.