PLA Filament 3D Printer 1.75mm

PLA filament to 3D printer

GT PLA Filament is a kind of Biological based PLA printing consumables especially designed and developed on the basis of 3D printer.

PLA Filament with 1kg spool
3D printer has been used by designers, engineers and scientists to produce the disposable mechanical products and model, and it is already widely used in health care, education, toys, building, automobile, electronics, and anime field.

PLA, ABS filaments for RepRap 3D Printer
PLA is the ideal material for a Mendel RepRap. It is dimensionally stable, so there is no need for a heated bed. It is relatively inexpensive, and is not hard ABS), easily to shape the 3D model.

It does require some torque to move PLA through an extruder because of its higher coefficient of friction (relative to ABS), so it is recommended that you use a Geared_NEMA17_Extruder or Geared_NEMA17_Extruder_Driver vs the stock mendel extruder.

Build Surface
PLA bonds very firmly to Acrylic, and it is not recommended to print directly on an Acrylic build surface.
It does stick well and is removed easily from BlueTape
It can also be printed on Polyimide(Kapton) that is pre-heated, but will be hard to remove until both the part and the surface are cooled.
It can also be printed directly onto heated glass
PLA prints nicely directly to a lightly oiled sheet of polycarbonate/Lexan. No heat is necessary.

Moisture Issues
PLA can absorb moisture from the air. When it is heated this moisture can turn to steam bubbles Small amounts of PLA filament can have some moisture removed by putting it on a piece of aluminum foil in an oven heated to 170F for an hour. The filament in the oven is floppy, but sticks to itself only slightly. Flexing the coils after cooling unsticks them from each other. Heating a whole spool this way has not been tried, and may result in the spool becoming unusable, so caution is advised.
Interestingly, a weight change can be seen after baking. One coil went from 120.5 grams to 120.0 grams (almost 1/2%).

Advantages:

• PLA is a bioplastic, meaning it is made from renewable natural resources.
• It is also biodegradable in commercial compost facility.
• It is easier to print (less warping) then ABS.
• It smells very nice too!!