From:  eric (ERICCLOUGH)

To be honest, I had not noticed the red box ... I'll know to look for it next time.

I fixed it and yes, 'revolve' worked fine.

I have been trying to get my head around 'loft, sweep and extrude', their differences and similarities and sure get some strange shapes I don't expect sometimes.

I'm used to working mostly with straight lined basic architectural stuff and those all seem to work for me as I expect.

Using MoI I have added some windows and doors to my 'parts' library.