"St." <dot### [at] dotcom> wrote in message news:4401f5e9@news.povray.org
>> I also attach the wings model if you want to look at it.
>
>   Thanks. That helped a lot Scott.
>
>>
>> Any advice on what I've done wrong (and more usefully how to fix
>> it!) would be great.
>
>    Ok, for some reason, you have 2 vertices pointing to one vertex
> (many times) from when you mirrored your seat - this will give
> artifacts. Funny thing is, I thought you meant the 'arms' of the
> seat in your original image... ;o)

Thanks so much for the tips, things like that are good because often I go 
about a very long winded way of doing things based on the tutorials I have 
read.

Ermm, yeh, I think I have two separate problems upon investigation :-)

1) As you explain when I mirrored, some faces don't seem to get "joined". 
This was an error on my part, I only selected one face and chose "mirror", 
rather than all of the ones that were down the middle.  I didn't realise 
that it wouldn't automatically "join" the rest of them that were touching 
(or almost touching).  It works much better now thanks.

2) In the "arm" (see attached image for clarification, the lower image is 
just "shaded" mode) there is still something weird going on.  Can you see it 
on your computer?  When you do subdivision or shaded view it looks like this 
face is actually there twice for some reason.

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