# DONUTOD System Variable [GstarCAD 2017](Help%20System/GSTARCAD/2017/Index.md) → [System Variables](Help%20System/GSTARCAD/2017/System%20Variables/(System%20Variables).md) → [D](Help%20System/GSTARCAD/2017/System%20Variables/D/(D).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 could not be zero. If the value of DONUTID is larger than DONUTOD, they will exchange when running next command. --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/D/DONUTOD%20System%20Variable--a61f25706e23.md) · [GstarCAD 2018](../../../2018/System%20Variables/D/DONUTOD%20System%20Variable--a61f25706e23.md) · [GstarCAD 2019](../../../2019/System%20Variables/D/DONUTOD%20System%20Variable--a61f25706e23.md) · [GstarCAD 2020](../../../2020/System%20Variables/D/DONUTOD%20System%20Variable--a61f25706e23.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/System%20Variables/D/DONUTOD%20System%20Variable--a61f25706e23.md)