Core out
Core out refers to a technique where you remove material from a plastic part, leaving distinct walls and ribs which provide enough strength and mating surfaces for other parts in the assembly.
Example of coring out
Below is an example to show how the coring out works.
Why coring out needed?
Coring out in design for manufacturing
In our DFM report after order, we will analyze the thickness. If too thick, you are suggested to core out to avoid sink marks. We can provide you guideline if you do not have an idea.
Alternative solutions for not coring out
For some reason like part geometrics, you do not want to core out the part. However, there are alternative solutions you can choose: