The variable speed gizmo looks interesting (thanks WolfmoonCT).
Unfortunately, it seems to be a US product (110v) and I'm UK based (240v).
I couldn't find anything similar that was UK based when I did an internet search but I will keep looking now I know what to look for.
My saw .... I'm a little embarrassed to say it was a really cheap one (under £100).
It was what I could afford and it fitted into my price range (as a starter saw) giving me a chance to try my hand at this.
With hindsight, there are a number of important points that are not right with it, making it a poor choice for use on intricate work; tensioner is at the back making adjustment difficult (no quick tensioning), only takes pin blades (starting holes have to be 4mm) and its a single speed machine (high speed snaps the wood where lots of cuts / holes are in close proximity).
Longterm, I need one that has front or side tension adjustment (easy to reach), has variable speed and can take pin-less blades, this would greatly improve what I can do.
Regrettably, being UK based there doesn't seem to be a wide choice when it comes to machines, unlike the US but I am new to this and could be looking in the wrong place.
If any UK members have any machines they would care to recommend then I would be grateful.
For price and features I'm beginning to like the look of the Fox 16", which has variable speed and can use pin-less blades but it seems to have an availability problem.
Thanks amazingkevin for the information on cutting metal
ATB
Steve