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According to the Formlabs, “stereolithography (SLA) print process, and see how Formlabs prints compare to parts made from an extrusion-based fused deposition modeling (FDM) 3D printer:
Form 1+ is a stereolithography 3D printer. Today, we’re going to look at how it works and put it to the test against parts from an extrusion-based machine.
Let’s start by taking a closer look at the printer. When we open up the light blocking cover, we can see a build platform inside. This metal plate is where the parts are made.
Underneath the build platform is a liquid resin tank. This clear window gives the ultraviolet laser a path to cure the resin.
To start a print, we’ll upload a file, and fill up the resin tank to the indicator line. You can see the laser passing back and forth inside, hardening the liquid plastic.
Now, We’ll take our print out and wash it in rubbing alcohol to get the excess resin off. The flower comes with supports on it, and we’ll snip them off to finish the piece.
Stereolithography is known for producing extreme detail, with layers down to four times finer than a human hair.
The Form 1+ lets us take advantage of a library of materials, so we made some other parts to show what these resins can do.
A Castable Resin gives jewelers and engineers an inexpensive way to produce metal parts. This Flexible Resin is great for simulating different textures and as we can see, this Tough Resin and can really take a hit”.