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10 Commandments of Plastic Part Design

 

 

1. Radii

 

Check for sharp corners

 

 

2. Wall Uniformity

 

Check for too thick sections

 

 

3. Ribs

 

Check for too thick/close & tall ribs

 

 

4. Bosses

 

Check for too thick & tall bosses

 

 

5. Draft

 

Check for zero drafts

 

 

6. Snap-fit

 

Check for rigid snap-fit

 

 

7. Screws

 

Avoid countersunk features for screws

 

 

8. Molded in threads

 

Avoid countersunk features for screws

 

 

9. Weld line formation

 

Check for weld line formation

 

 

10. Warpage

 

Avoid non-uniform cooling