These are best used for decorations, prototypes not subject to extreme force, and prints with two colors. Please be aware that all features should be larger than 1mm and anything smaller may not show up or be distorted when printed.
PLA – Polylactic Acid
PLA is both strong and easy to work with. It is relatively hardy, but good for making more precise models. Thin parts and small features can be done with PLA where other materials may warp and be imprecise.
ABS – Acrylonitrile Butadiene Styrene
ABS is similar to PLA, though more difficult to work with. It makes up for this by being sturdier and having greater resistance to temperature changes.
These can be used for objects that have to be tough, durable and survive conditions that would break lesser plastics. Due to their nature, they should not be used for creating models with fine features, and many cannot currently be printed with good support structures. Simple, block-like arrangements are usually best when working with these materials.
Nylon is extremely strong, abrasion resistant and difficult to damage. While not indestructible (especially when printed thin), it can serve well for building clamps, containers and gears.
Semi-Flexible – Thermoplastic Polyurethane
These materials are somewhat flexible (especially when printed thin) and can be used for wheels, washers and other parts where some give is required. They are also quite tough.
CPE – Chlorinated Polyethylene
Tough, resistant to chemicals and weather.
Notes on what not to do:
Engineering materials should generally not be used for small or complex features. They also should not need support, and should only be built using the 0.2mm layer option. Dual prints should not involve any part using CPE or TIPU.
As always, contact us at firstname.lastname@example.org if you are uncertain on what to do.