SLA

There are advantages and disadvantages to both techniques that should be considered carefully to achieve the desired results. SLA produces a part with a good, smooth surface finish and fine resolution. However, SLA is relatively slow, making it unsuited for high volume production. Inexpensive compared to other conventional counterparts, requiring no hard tooling as with plastic injection molding. SLA models typically have layer thicknesses of .3mm with a lateral deviation of .1mm. The advantage of all 3D printing processes is that is easier to create complex pieces that are physically impossible to make with conventional or subtractive manufacturing.