Hi rhodesy,

> Firstly I can't believe no-one did this before sketch-up - it
> seems like such an obvious function, secondally how can
> you even patent such a simple opperation,

Unfortunately the US patent system is horribly screwed up and has allowed a ton of software things to be patented that should not have been.


> thirdly how tight is the patent and

I guess you'd need to hire a patent lawyer to really get a proper answer on this.


> how easy would it be to impliment a similar feature into moi?

Well, I do want to include an "automatic boolean" type option in MoI's extrude command which should streamline this kind of thing in MoI a bit.

My most recent idea on this is to enable an automatic boolean if you have a solid selected in addition to a curve when you do an extrusion, that could be a signal to MoI that you want to boolean the result of the extrusion with that selected solid.

- Michael