Refuse to Let
Design Fall Flat
Get a free thermoplastic
Design Cube at
go.protolabs.com/MT5A
Proto Labs is the world’s
fastest manufacturer of
prototypes and low-volume
parts. To help illustrate
the design challenges
encountered with injection
molding, we created the
Design Cube. See thin and
thick sections, good and
bad bosses, knit lines,
sink and other elements
that impact the
moldability of parts.