PLA: Difference between revisions

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PLA comes in variants.  
PLA comes in variants.  


Proportions + color pigments added will modify melting temperature and other behavior !
Proportions + color pigments added will modify melting temperature and other behavior ! This implies that recommendations for your 3D printer only apply to the kind of PLA that was sold by the company (official recommendations) or that was bought by users (blogs, forums, wikis).


This implies that recommendations for your 3D printer only apply to the kind of PLA that was sold by the company (official recommendations) or that was bought by users (blogs, forums, wikis).
Typically, PLA prints around between 205 and 215 degrees. A raft is usually printed colder than that so that it can be more easily removed. But if you don't have a cooling fan, you must go as low a possible.
 
Recommendations from the [http://reprap.org/wiki/PLA RepRap Wiki]
* 4032D requires higher temperatures and may need to be set as high as 230°C
* 4042D should extrude at 190°C
* 4043D 160-220°C around 180 is a good start


== Links ==
== Links ==

Revision as of 15:10, 12 June 2012

Introduction

PLA (here) stands for Polylactic acid or polylactide. It is a kind of plastic.

See also:

PLA in 3D printing

“PLA is a biodegradable, thermoplastic, aliphatic polyester derived from renewable resources, such as corn starch (in the U.S.) or sugarcanes (rest of world). Although PLA has been known for more than a century, it has only been of commercial interest in recent years, in light of its biodegradability. [...] PLA is slightly more brittle than ABS once it's extruded, but that is more than made up for by it's almost complete lack of warping, the ease of part removal, and the lack of any bad smells. It gives off a faint odor of Candyfloss (cotton candy) when it's printing.

Due to PLA's relatively low glass transition temperature, manufatured parts can not be used in situations where temperatures are higher than about 70-80 degrees C... PLA cups cannot hold hot liquids” (BFB Wiki, retrieved June 2012)

PLA comes in variants.

Proportions + color pigments added will modify melting temperature and other behavior ! This implies that recommendations for your 3D printer only apply to the kind of PLA that was sold by the company (official recommendations) or that was bought by users (blogs, forums, wikis).

Typically, PLA prints around between 205 and 215 degrees. A raft is usually printed colder than that so that it can be more easily removed. But if you don't have a cooling fan, you must go as low a possible.

Recommendations from the RepRap Wiki

  • 4032D requires higher temperatures and may need to be set as high as 230°C
  • 4042D should extrude at 190°C
  • 4043D 160-220°C around 180 is a good start

Links

Introductions
Discussions


List of suppliers
"Local" Suppliers (there are many more, see above !)