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FINISHING
6.1.2 Removing Support Material
Even after support material is removed by hand, residual material will remain.
1. Ensure that safety goggles and a mask are worn for protection
2. Remove most of the support material by hand, taking care not to damage the 3D object
3. Using the long-nose pliers, carefully grasp some of the remaining material, then twist to
remove. Repeat until no more material can be removed.
4. Using the wire cutters, cut away any excess lament.
6.1.3 Sanding
Though Fused Filament Fabrication (FFF) is capable of producing high quality objects straight out
of the machine, the layer lines will be visible. Sanding will reduce these ‘step’ marks in the model.
1. Ensure that safety goggles and a mask are worn for protection
2. Starting with 100 grit sandpaper, carefully sand your 3D object using small, circular motions
NOTE: PLA is less resistant to high temperatures caused by sanding. Take your time sanding your 3D
object to avoid damage.
3. Using the medium sanding sponge, sand dicult to reach areas of your 3D object
4. Gradually increase the sandpaper grid until the 3D print is smooth
TIP: Spraying a primer ller will also help to reduce the layer lines on the 3D Object. This can then be
sanded away and repeated, until the desired smoothness is achieved
6.1.4 Surface Coating
Finally, to make your models more presentable, follow these steps;
1. Ensure that safety goggles and a mask are worn for protection
2. Ensure that your 3D object is clean and free from dust
3. Spray your model using an acrylic based primer, following the directions of your primer
4. Allow appropriate time to dry before applying additional coats
5. Spray your model using an acrylic based paint of your colour. Allow appropriate time to dry
6. Spray your model using an acrylic based varnish, following the directions of your varnish.
Allow appropriate time to dry before applying additional coats.
NOTE: Dierent paint types are also compatible with PLA. Consult your local paint supplier for the best
compatibility for your intended purpose.
Congratulations! Your 3D object now looks like a professionally nished product!
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