The Form 2 3D printer,developed by formlabs, is a stereolithography (SLA) machine that creates parts using liquid plastic that is solidified layer by layer using UV light. This results in a resolution of approximately 25 microns per layer.
- General Stats:
- Price : Starts at $0.75/cm^3
- Maximum Part Size : 144mm x 144mm x 175mm (5.7in x 5.7in x 6.9in)
- Layer Thickness : 25, 50, or 100 microns (0.025,0.05, or 0.1 mm)
- Highly Detailed
- Sturdy Parts
- Multiple resins available
- Extremely Slow
- Support Structures may cause defects
- Main Article : Processing Form 2 Files
After you have designed the 3D model of your desired part, export the part in the STereoLithography (.stl) file format. The STL format describes only the surface geometry of the object instead of the object as a whole. Then open the file in the Autodesk Netfabb software to repair the file.
- We will only process STLs which have:
- 1 shell per continuous part
- 0 border edges
- 0 invalid orientations
- 0 holes.
Even if Netfabb reports no invalid orientations, if we see red triangles in repair mode there is a problem with your model. Print at your own risk.
Fixing a File
- Main Article : Fixing STLs
Students are welcome to use any of our computers for fixing their files in Netfabb or Rhino.
- Here are some tips to get you started at home:
- Ideally in Rhino you want one closed polysurface before meshing.
- NetFabb is better at meshing than Rhino. Consider opening the 3dm file in NetFabb to generate the STL instead.
- Default repair is decent at fixing holes, border edges, and invalid orientations. Then try using boolean join to reduce shells down to 1.
- If boolean join results in multiple shells then most likely the shells are not contiguous. Consider deleting extra shells in model.
- Extended repair wraps an existing STL in a new mesh. This can severely alter geometry and result in thin walled sections.