3D printing, including stereolithography (SL), selective laser sintering (SLS), and direct metal laser
sintering (DMLS), through the acquisition of FineLine Prototyping, Inc. (FineLine) in 2014 and
expanded through the acquisition of certain assets, including shares of select subsidiaries, of
Alphaform AG (Alphaform) in 2015
Lathe-turned parts that expanded the breadth and scope of CNC’s product line in 2015
PRODUCT LINES
PRLB 3D Printing (Fineline): product line includes SL, SLS and DMLS processes, which offers customers a
wide-variety of high-quality, precision rapid prototyping and low volume production. These processes
create parts with a high level of accuracy, detail, strength and durability. 3D Printing is well suited to
produce small quantities, typically in the range of one to 50 parts.
CNC Machining (Firstcut): CNC Machining (Firstcut) product line uses commercially available CNC
machines to cut plastic or metal blocks into one or more custom parts based on the 3D CAD model
uploaded by the product developer or engineer. These efficiencies derive from the automation of the
programming of these machines and a proprietary fixturing process. The CNC Machining (Firstcut) product
line is well suited to produce small quantities, typically in the range of one to 200 parts.
Injection Molding (Protomold): The Injection Molding (Protomold) product line uses 3D CAD-to-CNC
machining technology for the automated design and manufacture of thermoplastic, metal or liquid
silicone injection molds, which are then used to produce custom injection-molded parts on commercially
available equipment. The Injection Molding (Protomold) product line is used for prototype, on-demand
and short-run production. Prototype quantities typically range from 25 to 100parts. Because PRLB retains
possession of the molds, customers who need short-run production often come back to Proto Labs’
Injection Molding product line for additional quantities typically ranging up to 10,000 parts or more. They
do so to support pilot production for product testing or while their tooling for high-volume production is
being prepared, because they need on-demand manufacturing due to disruptions in their manufacturing
process, because their product will only be released in a limited quantity or because they need end-of-life
production support. These additional part orders typically occur on approximately half of the molds that
PRLB makes, typically accounting for approximately half of total Injection Molding (Protomold) revenue.
Process: The process for 3D Printing (Fineline), CNC Machining (Firstcut) and Injection Molding
(Protomold) begins when the product developer or engineer uploads one or more 3D CAD models
representing the desired part geometry. Using PRLB proprietary software that uses algorithms to analyze
the 3D CAD geometry, analyze its manufacturability and support the creation of an interactive, web-based
quotation containingpricing and manufacturability information. A link to the quotation is then e-mailed
to the product developeror engineer,who can access the quotation, change a variety of order parameters
and instantly see the effect on price before finalizing the order. For 3D Printing (Fineline), the quote is
reviewed and then scheduled for production. For CNC Machining (Firstcut), the tool paths are then