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Best Practices: Layout Sketch in Assembly Studio
![troy_ostrander](https://profiles.onshape.com/c5f85d4e67f58b6f4e10ebf45ac90f2d78e94fac7f5496ac6fa19548399367e9.png)
You can make a sketch in a Solidworks assembly file and use that sketch to drive part locations and size. How can you do this in Onshape?
SW workflow:
![Image: https://us.v-cdn.net/5022071/uploads/editor/ar/an7hcmk0s72m.png](https://us.v-cdn.net/5022071/uploads/editor/ar/an7hcmk0s72m.png)
![Image: https://us.v-cdn.net/5022071/uploads/editor/et/91z26i3ax7ae.png](https://us.v-cdn.net/5022071/uploads/editor/et/91z26i3ax7ae.png)
![Image: https://us.v-cdn.net/5022071/uploads/editor/vx/tcnavvtyla4p.png](https://us.v-cdn.net/5022071/uploads/editor/vx/tcnavvtyla4p.png)
SW workflow:
- Make layout sketch in assembly file.
- Part inserted into assembly file
- Part mated to layout sketch
- In context relations made between part sketch and assembly layout.
- Changes to layout sketch in assembly file drives part location and size
![Image: https://us.v-cdn.net/5022071/uploads/editor/ar/an7hcmk0s72m.png](https://us.v-cdn.net/5022071/uploads/editor/ar/an7hcmk0s72m.png)
![Image: https://us.v-cdn.net/5022071/uploads/editor/et/91z26i3ax7ae.png](https://us.v-cdn.net/5022071/uploads/editor/et/91z26i3ax7ae.png)
![Image: https://us.v-cdn.net/5022071/uploads/editor/vx/tcnavvtyla4p.png](https://us.v-cdn.net/5022071/uploads/editor/vx/tcnavvtyla4p.png)
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Comments
Check the "master model" course for details
Essential you can create the entire layout sketch in a single part studio, build the parts in the sections of the layout sketch and add them to an assembly tab when you are ready to get a BOM and add other off the shelf parts. The layout sketch can even be added to the assembly as well if you need it for reference. Hope this helps!