Common mistakes when supporting 3D models include incorrect placement, overuse, ignoring geometry, and material mismatch—all leading to print failures or extra work.
- **Incorrect placement**: Missing overhangs/bridges causes warping or collapse; placing supports on delicate features damages them during removal. - **Overuse**: Too many supports waste material and time cleaning up simple surfaces. - **Ignoring geometry**: Thin walls or small details get crushed if supports are misaligned or too rigid. - **Material mismatch**: Rigid supports for flexible prints make separation nearly impossible.
Beginners should use slicer auto-supports and test small parts—this fixes most errors without extra effort.