Notes

Slide Show

Outline

1	Plastic Manufacturing Injection Molding
2	Injection Molding - 1
3	Injection Molding - 2
4	Injection Molding - 3
5	Injection Molding - 4
6	Typical Part - Exterior
7	Typical Part - Interior
8	Wall Thickness
9	Consistent Wall Thickness
10	Draft
11	Ribs - Added for Strength
12	Designing Ribs
13	Rib Details
14	Rib Geometry
15	Overhangs and Snaps
16	Feature Design Designing Plastic Objects
17	Wall Thickness Keep walls as thin as possible Use uniform wall thickness Use generous radius at all corners Design parts to facilitate easy withdrawal from the mold by drafting in the direction of mold opening Use ribs or gussets to improve part stiffness in bending
18	Varying Wall Thickness
19	Uniform Wall Thickness
20	Ribs Crossing - Too Thick at Intersection
21	Ribs Crossing - Uniform Thickness
22	Boss At Corner - Too Thick
23	Boss At Corner - Uniform Thickness
24	Use Fillets at Corners
25	Draft the Sides - Aids in Mold Removal
26	Draft Angles
27	Add Ribs for Strength
28	Rib Size
29	Bosses for Connecting Parts
30	Strengthen with Gussets
31	Boss Dimensions
32	Hinge Requiring Machining
33	Hinge Without Machining