28 down 8 to go.
7 Likes
Some stacked beech ply 160hz elliptical LC flares, this is just the front section they will extend further back when I get round to doing it…probably 200kg each and 1m 20 across at the mouth…
19 Likes
They look very good. What sort of tolerance does it achieve?
Exactly, I would love to make something similar I just need to improve my cad cam skills a bit 
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Whoah ! That must take some class machining.
You bet, machined front and back on a massive machine and over £1k in materials 
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Not all that sure, 0.05mm at a guess on the aluminium. On wood seems more like 0.5mm depending on how fast I run the machine and how worn out the cutter is.
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How much time did you spend sanding them?
A lot:)…it’s why they aren’t finished yet, my arms gave up on me… 90hz versions would be interesting.
Spent the summer on the balcony a few years back finishing the round ones off. Not sure I really like the look of the purple phenolic resin on the birch which is why I moved over to using the more expensive beech.
There is some nice joinery in them though on the roll back.
4 Likes
They look like something Henry Moore might have come up with.
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The wife saw them and commentedf they looked like Barbra Hepworth works, which is pretty close 
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She’s definitely closer than I was.
Well they were married…
No they weren’t…
I blame the wife, she was the one who told me
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That’s my default position too, as long as she’s not listening…
Beautiful!
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I think that the next challenge should involve an oak tree, a lathe, a chainsaw and some vernier calipers only.