A small but weighty matter..

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Watermole+
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Re: A small but weighty matter..

Post by Watermole+ » Mon Jul 24, 2017 8:20 am

SkimmingTheCream wrote:
Sun Jul 23, 2017 7:43 pm
Very nice Watermole :Hat:
Was the original made in a mould rather than machined ?
Trevor
Yes Trevor, by looking at the old original, I would say that they were definitely cast in moulds.

I have just learnt that copper may be toxic to fish so will make some more from brass (which does contain copper but as an alloy).

wm+

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For where your treasure is, there will your heart be also
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Swythyn Troutbeck
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Re: A small but weighty matter..

Post by Swythyn Troutbeck » Mon Jul 24, 2017 8:32 am

Very nice indeed WM. Lovely.

Troutbeck :Hat:
When I'm not fishin' I'm fettlin'

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Nobby
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Re: A small but weighty matter..

Post by Nobby » Mon Jul 24, 2017 10:00 am

They look so nice in the copper though. Could they be set in resin? Anybody any experience of resin moulding?

http://www.mbfg.co.uk/casting-resins.html


I have some imitation flowers around the house, with the flower set in resin in a glass to look as though it were mere water.

The world is full of new toys these days......and I want them all! I wonder if one could cast those Match Aerial arbour sections you once made, Leszek?

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Nobby
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Re: A small but weighty matter..

Post by Nobby » Mon Jul 24, 2017 10:01 am

double post, sorry. The site is 'hanging' badly today.

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Snape
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Re: A small but weighty matter..

Post by Snape » Mon Jul 24, 2017 10:07 am

Utterly beautiful WM+. :Hat:
Don't worry about copper metal being toxic, it's not. Copper compounds are toxic but the metal is so unreactive with water there won't be a problem, just as we don't suffer poisoning from water passing through copper water pipes. Same applies to lead and mercury - the metals are not toxic. Vapours and compounds are a different matter. :Scared: Remember that brass is 60% copper so it is still there. Stick with copper... :Happy:
Many men go fishing all of their lives without knowing it is not fish they are after.
~Henry David Thoreau

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Firebird
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Re: A small but weighty matter..

Post by Firebird » Mon Jul 24, 2017 10:22 am

Well they are toxic if they get into you. Hence concerns about dental nurses, old lead pipes, etc. But a copper plummet is unlikely to be an environmental hazard I would have thought. Imagine what archaeologists will make of one coated in verdigris found on the bank of an old dried river bed a few thousand years into the future after this civilisation is long gone. (Assuming another one follows.)

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Dave Burr
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Re: A small but weighty matter..

Post by Dave Burr » Mon Jul 24, 2017 10:33 am

Nobby wrote:
Mon Jul 24, 2017 10:00 am
They look so nice in the copper though. Could they be set in resin? Anybody any experience of resin moulding?

http://www.mbfg.co.uk/casting-resins.html


I have some imitation flowers around the house, with the flower set in resin in a glass to look as though it were mere water.

The world is full of new toys these days......and I want them all! I wonder if one could cast those Match Aerial arbour sections you once made, Leszek?
Encasing objects in resin is quite straight forward Nobby. To do a plummet you'd need to pour a small amount as a base, let it set then put the plummet on top and fill the container. No 'join' is visible. I did my son's dead scorpion once but, because it hadn't quite dried, some body fluids coloured the resin yellow.... but it was still a cool paper weight. I'm certain that many fishing objects would look attractive if preserved in resin.

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Nobby
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Re: A small but weighty matter..

Post by Nobby » Mon Jul 24, 2017 12:15 pm

Apologies, then if copper isn't toxic in the aquatic environment...I read that it was when I kept tropical fish years ago. A search on Google suggest that it is, but it's a subject I have no understanding of.

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Firebird
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Re: A small but weighty matter..

Post by Firebird » Mon Jul 24, 2017 3:03 pm

Yes it is toxic if you swallow it and no doubt to aquarium fish if you dissolve some in the water. But it's unlikely a plummet would pollute much, certainly no more than lead ones. But the ones you buy are now plastic coated aren't they. Much easier than turning on a lathe, coating in resin, and all that caper.

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Fredline
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Re: A small but weighty matter..

Post by Fredline » Mon Jul 24, 2017 3:24 pm

They are way too good to drop into water.
If you have no grease with you, and your rings are full of ice, do not cut out the ice with a pen-knife but get your man to put the rings one by one in his mouth, and so to thaw the ice.
John Bickerdyke.

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