Split Body Workflow?

[cooperAL5P5]

I can't figure out how to separate the switch from the encasement in this .STEP file, into two separate bodies. I tried starting with a Split Body using the inside long flat side faces adjacent to the switch, but I just get intersection errors. Would anyone be able to explain the process for something like this?

Thanks!

[davebYYPCU]

All works Ok my end.

I used Extend cutting tool, 

Then found there was some draft inside the slot, so deleted those faces.

Red plate is not part of the switch anymore.

Might help....

[TheCADWhisperer]

Examine the Attached file.

[cooperAL5P5]

Ahh ok, so @davebYYPCU, you did a Surface-type Extrude to create the sort of oval-shaped body/surface to use as the splitting tool. I didn't know that Surface extrudes are different than Solid extrudes, good to know. Thanks dave!

@TheCADWhisperer, shoot, that is an even more complete separation of the switch's body. There's no design history though, how did you achieve that so perfectly?

[TheCADWhisperer]

Unstitch the surfaces.

Segregate the two components (or bodies) into Groups.

Repair the Pins.

Repair the Holes.

Stitch back to solids.