ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Copyright 2011-2018 ABS Quality Evaluations, Inc. Copyright 2011-2018 ABS Quality Evaluations, Inc.

ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Copyright 2011-2021 ABS Quality Evaluations, Inc. Copyright 2011-2021 ABS Quality Evaluations, Inc.

ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Copyright 2011-2020 ABS Quality Evaluations, Inc. Copyright 2011-2020 ABS Quality Evaluations, Inc.

ABS Quality Evaluations, Inc. 16855 Northchase Drive, Houston, TX 77060, U.S.A. Copyright 2011-2017 ABS Quality Evaluations, Inc. Copyright 2011-2017 ABS Quality Evaluations, Inc.

ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Copyright 2011-2018 ABS Quality Evaluations, Inc. Copyright 2011-2018 ABS Quality Evaluations, Inc.

CHAPTER 3 | PART DESIGN GUIDELINES Wall Thickness (mm) C o o li n g T im e ( S e c ) 40 35 30 25 20 15 10 5 0 0 1 2 3 4 ABS PC Nylon 6/6 Figure 2 - Designing for Wall Thickness Changes Bad Better Recommended Recommended Poor High Stress Ideal Figure 3 - Internal and External Radius Guidelines .5W Min Inside Rad + W Poor High Volume FIGURE 1 - Wall thickness vs. cooling time of various plastics FIGURE 2 - Designing for wall thickness changes FIGURE 3 - Internal and external radius guidelines Design Guide 9 RIB DESIGN GUIDELINES The minimum distance ribs should be spaced is three times the nominal wall thickness (3W). Solvent Solvents soften surfaces of plastic (plastic must be soluble)—best for amorphous or low crystalline plastics, such as ABS, acrylic, cellulosic, PC, PS, PPO, and vinyls. Venting Guidelines by Resin • PC: .001"–.002" depth & .250" width • PC/PSU: .002"–.003" depth & .250" width • PES: .003"–.004" depth & .250" width • PEI: .001"–.003" depth & .250" width • PP: .001"–.002" depth & .250" width • ABS: .0015"–.0025" depth & .250" width • PEEK: .002"–.004" depth & .250" width FIGURE 40 - Venting Guidelines Vent Groove Vent Land Vent FIGURE 44 - Venting guidelines FIGURE 43 - Venting areas 20 Gravi-Tech CHAPTER 5 | PROCESS OPTIMIZATION Process optimization ensures a quality process and minimizes cycle time.

ECert.QECertificate ABS Quality Evaluations ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Copyright 2011-2019 ABS Quality Evaluations, Inc. Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by:

SKIN TONE PC 1 AEON YELLOW ABS YELLOW ABS 2

GRAY ABS M2942 31004PCM EQUALIZER PC FLUORESCENT PINK BLUE ABS M2942

GREEN FD ABS PC BRIGHT WHITE 11-0601TPX ABS BLUE