# UCSBASE System Variable [GstarCAD 2022](Help%20System/GSTARCAD/2022/Index.md) → [System Variables](Help%20System/GSTARCAD/2022/System%20Variables/(System%20Variables).md) → [U](Help%20System/GSTARCAD/2022/System%20Variables/U/(U).md) **Function Description:** The UCSBASE system variable is used to store the the name of UCS that defined the original point and direction for ortho UCS settings. | | | | --- | --- | | Type | Strings | | Saved in | Drawing | | Initial value | "" | The valid value can be any named UCS..