To Move the Grid Origin
1. Click Sketch > Draft Grid. The GRID MODIFY menu opens in the Menu Manager.
2. Click GRID MODIFY > Origin.
3. From the GRID ORIGIN menu, choose the type of entity to set the origin:
Get Point—Selects a point to be the origin.
Edge/Entity—Selects a point on an edge or entity.
Default—Uses the default grid origin.
4. If you choose Get Point or Edge/Entity, select the entity to locate the origin of the grid.
You can locate the grid origin at one of the following places. Use View > Draft Grid on the menu bar, then click Origin on the GRID MODIFY menu.
Sketched entity endpoint or center
Sketched point
Datum point
Edge or curve vertex