# DONUTOD System Variable [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [System Variables](Help%20System/GSTARCAD/2027/System%20Variables/(System%20Variables).md) **Function Description:** The DONUTOD system variable is used to set the default outside of diameter for donuts. | | | | --- | --- | | Type | Real | | Saved in | Not saved | | Initial value | 1.0000 | This value can not be zero. If the value of DONUTID is larger than DONUTOD, they will exchange when running next command. --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/systemVariables/DONUTOD.html) · © Gstarsoft Co., Ltd.