Thanks gents, now a bit more to keep you entertained.
I just couldn't stand the sight of that square bit on the back of the cylinder, it looked absolutely grotesque.
So after the standard Friday English lunch, fish, chips & mushy peas, with loads of salt and vinegar, anyone drooling yet? I got stuck into it in the shop.
First there was a hole drilled into the brass base, this will be threaded, and used to fix it to the acrylic one.

Now came the bit I had been waiting for, rough machining away the metal that isn't needed. Once that is done, the files then come out, to get it all roughly to shape.

This shot shows how you can cut a lot of the material away, as long as you don't touch any of the basic engine dimensions, you can make it whatever shape you want.

As you can now see from this shot, all that boxy square bit has now gone, and it is starting to look like a flowing shape. There is still hours of hand work to do on this part yet, every scratch and blemish has to be laboriously removed before final polish.

Time to knock some acrylic into shape. I have decided to go with a basic diamond pattern. The round faced flycutter left a finish that will take only seconds to buff up.

Just to break up the stark straight edges, I decided to put a recess either side.

That's it! All the parts are made and shaped to how I think it should look, and it is still very much like my original sketch.

So now I have a few hours, sitting on a chair, wearing my fingers away.
The next time you see this effort, it should be all finished and running.
Is anyone starting to get the bling bug yet? Making your engines look just that little bit different.
Make the basic engine, then hack it to bits to make it look unique.
Bogs