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Ovington Laser |
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tink
Really should get out more Joined: 23 Jan 16 Location: North Hants Online Status: Offline Posts: 788 |
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Topic: Ovington Laser Posted: 08 May 21 at 5:53am |
I’m not disagreeing with anyone that the alloy spars differ and that is likely to be tool wear, my point is that it is simple and relatively easy to control and buy a new die as it wears.
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Tink
https://tinkboats.com http://proasail.blogspot.com |
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Paramedic
Really should get out more Joined: 27 Jan 06 Location: United Kingdom Online Status: Offline Posts: 929 |
Post Options Quote Reply Posted: 08 May 21 at 5:33pm |
is a laser mast actually extruded as a laser mast or is it a generic tube?
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Oatsandbeans
Far too distracted from work Joined: 19 Sep 05 Location: United Kingdom Online Status: Offline Posts: 382 |
Post Options Quote Reply Posted: 08 May 21 at 6:31pm |
Ok -well replacing extrusion dies will not come cheap. Has anyone got any idea of how consistent Al mast properties are apart from the mast manufacturer-no . I have compared two nominally the same Al masts and found them dramatically different. Now I don’t know much about Al , but I do know about composites and if you have good material and a good process you can get a very close control on the laminate properties.
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tink
Really should get out more Joined: 23 Jan 16 Location: North Hants Online Status: Offline Posts: 788 |
Post Options Quote Reply Posted: 08 May 21 at 6:56pm |
Extrusion dies are about 3K and will do a lot of masts before they wear out. The on cost to the sailor for good quality control will be minimal. As I said above not arguing that there isn’t variations but that with controls there should not be. Not commissioned a new die for a while but have a recent quote for an ongoing project.
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Tink
https://tinkboats.com http://proasail.blogspot.com |
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Oatsandbeans
Far too distracted from work Joined: 19 Sep 05 Location: United Kingdom Online Status: Offline Posts: 382 |
Post Options Quote Reply Posted: 08 May 21 at 7:03pm |
Who controls the quality of the extrusion? Who has any idea whether the mast mast is mid spec top bottom spec or out of spec? Has any customer ever seen this data-sorry if I was off hand on my last post -multi tasking after too much wine!
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Oatsandbeans
Far too distracted from work Joined: 19 Sep 05 Location: United Kingdom Online Status: Offline Posts: 382 |
Post Options Quote Reply Posted: 08 May 21 at 7:05pm |
Who controls the quality of the extrusion? Who has any idea whether the mast is mid spec top bottom spec or out of spec? Has any customer ever seen this data-sorry if I was off hand on my last post -multi tasking after too much wine!
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423zero
Really should get out more Joined: 08 Jan 15 Location: United Kingdom Online Status: Offline Posts: 3406 |
Post Options Quote Reply Posted: 08 May 21 at 7:07pm |
Would have thought any manufactured product would have to apply to a certain standard.
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Robert
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423zero
Really should get out more Joined: 08 Jan 15 Location: United Kingdom Online Status: Offline Posts: 3406 |
Post Options Quote Reply Posted: 08 May 21 at 7:10pm |
https://www.anodisingnorthwest.uk/specifications
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Robert
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JimC
Really should get out more Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6649 |
Post Options Quote Reply Posted: 08 May 21 at 7:31pm |
You obviously know more about this than I do, but if, say, you halve the acceptable range of wall thickness for the spars then won't you also approximately halve the life of the die before it produces sections that are out of spec? |
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tink
Really should get out more Joined: 23 Jan 16 Location: North Hants Online Status: Offline Posts: 788 |
Post Options Quote Reply Posted: 08 May 21 at 7:39pm |
Anodising is protection against corrosion it is heat treatment that controls the mechanical properties but it won’t account for the weight differences.
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Tink
https://tinkboats.com http://proasail.blogspot.com |
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