Screwdriver
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Tightened up the knot a bit

Was that all Google SketchUp, @Screwdriver ?
Yep. Brilliant program. Would be frustrating for a CAD/3d expert but makes up for it by being simple (and free).
I'm impressed. As a teacher I'm fortunate to have access to all Autodesk software so I'm familiar with (and we teach) using Inventor.
Thanks, I trained to be a teacher (CDT) but quit after a few months in London...
Thanks every one for your help, I have a couple of days off next week so may just have a bash at this, small one first then if it works out something different for the garden to.
That is interesting to see it modelled in Sketch up, I assume you could also experiment with cutting it into component parts to find the most accessible welds. I say you could because I have only played with Sketch Up for a couple of afternoons, any chance you could pm me a copy of the Sketch Up file or link to it so I can have a play, please.Tightened up the knot a bit
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That is interesting to see it modelled in Sketch up, I assume you could also experiment with cutting it into component parts to find the most accessible welds. I say you could because I have only played with Sketch Up for a couple of afternoons, any chance you could pm me a copy of the Sketch Up file or link to it so I can have a play, please.
All done, now. Haven't done the internal fillets, and the jast joint had to be pulled into place by a couple of millimetres.
And the mug for scale, of course!
All the Best,
CJ
You did yourself a favour by leaving a larger gap between the 'foils' than I did
They look like they'd use a fair amount of material, size dependent of course.
Also just downloaded the welder's knot from the last page of this post, and I'm sure it's made from fess (just 10, maybe?) pieces.
The PDF plans I'd done in this post? https://www.mig-welding.co.uk/forum/threads/trefoil-plans-wanted.89843/#post-1311485
Yup - nine pieces; three red, three orange and three yellow.
Put it this way, it was harder to visualise it than it was to weld it up