Besides creating a single continuous mesh, Dynamesh can also help you to hollow out your design. Merging & Hollowing: If your ZBrush model consists of several elements (SubTools), you could already combine them into one mesh by using the merging tool.
HOW TO REDUCE POLLY COUNT IN DAZ MODELS HOW TO
You can learn how to use this tool in this explanation by 3DHubs.
You can check if your object conforms to the minimum wall thickness by using ZBrush’s transpose or move tool.
HOW TO REDUCE POLLY COUNT IN DAZ MODELS SOFTWARE
ZBrush is hands down the most popular and powerful digital sculpting software out there.