If you skip draft, you will never eject the part. As plastic cools, it shrinks onto the core side of the mold. Draft angles allow the part to break free.

Different resins (like ABS vs. Nylon) have varying shrinkage rates that affect wall limits. 2. Mastering Draft Angles

Rounded corners allow plastic to flow more naturally, reducing pressure requirements.

Injection Mold Design Guide Instant

If you skip draft, you will never eject the part. As plastic cools, it shrinks onto the core side of the mold. Draft angles allow the part to break free.

Different resins (like ABS vs. Nylon) have varying shrinkage rates that affect wall limits. 2. Mastering Draft Angles injection mold design guide

Rounded corners allow plastic to flow more naturally, reducing pressure requirements. If you skip draft, you will never eject the part