3D printing's popularity continues to grow and more people are taking the plunge into this new consumer technology. With Will and Norm having built a Printrbot Simple for us, I thought it would be a good time to talk about buying your own printer. There are a many choices out there and it can be a lot of confusing misinformation which overwhelms you. It's not possible to cover all the printers out there, so we'll cover the basics and things to consider when buying a printer and places to look for information.
As a refresher, let's walk through the fundamentals of a typical home 3D printer. Most are going to be Fused Filament Fabrication (FFF) machines that use plastic filament pushed through a heated extruder which 'draws' onto a print bed, layer by layer until the model is finished. Many machines print with Polylactic Acid (PLA), a biodegradable, non-toxic plastic that produces nice, but semi-brittle prints. The other common plastic is Acrylonitrile Butadiene Styrene (ABS)--the same stuff LEGO is made from. ABS is a little trickier to print with and does produce some fumes but it's also more flexible and durable than PLA.
A higher-end choice but still in the realm of home printers are some SLA (Stereolithography) and DLP (Digital Light Processing) machines which print with liquid resin which is cured with light. They produce highly detailed prints but tend to cost more for both the printer and materials and we'll cover those in a later article.