Kiteroa 8 Posted June 22, 2011 Share Posted June 22, 2011 Can anyone recommend a crowd who bends up and fabricates thick wall alloy push and pulpits? Chris Sayer had his 6.5's done by a local guy but I can't remember the name of his company. Any ideas? Link to post Share on other sites
Marshy 30 Posted June 22, 2011 Share Posted June 22, 2011 Marine Metal Fabrications - Glenfield. http://maps.google.co.nz/maps?oe=utf-8& ... CEcQnwIwAw Pretty sure thats who did the stantions and stuff for Cooksons when they built speedboat from memory. Did a great job. Link to post Share on other sites
tuffyluffy 76 Posted June 22, 2011 Share Posted June 22, 2011 You might me able to hire the bending tool to shape up the bits then get a welderer to put it all together. Link to post Share on other sites
wheels 543 Posted June 22, 2011 Share Posted June 22, 2011 You might me able to hire the bending toolIt ain't so easy to bend marine grade ally into tight bends. It cracks. You have to anneal it with a carbon flame first. If you use something like a Bramely hand bender, I think the radius might be to big for the liking. WT, I have to ask, why Aluminium and not SST?? Is it a weight thing? Link to post Share on other sites
Kiteroa 8 Posted June 22, 2011 Author Share Posted June 22, 2011 Yeah, it's partly a weight thing but more a cosmetic preference. All my stanchions are composite and black. I've been mucking about with bladder moulded curved composite tubes for the pushpit etc, but it's getting expensive and i've taken 3 goes to get one that is good enough to be used. I'm thinking it might be better just to go alloy and mess about with my composite gear while I have a boat finished and sailing! Yup, the alloy tube needs to be 4mm wall and has to be annealed before bending. Standard 2mm tube isn't strong enough. Stainless will look a bit out of place when everything else is black. Hard anodised alloy is the next best think I think. Link to post Share on other sites
Atom Ant 0 Posted June 22, 2011 Share Posted June 22, 2011 Just go SS and then spray can it matt black WT! It'll look classy I promise! Link to post Share on other sites
Kiteroa 8 Posted June 22, 2011 Author Share Posted June 22, 2011 Could make them out of PVC pipe and spray them silver... Link to post Share on other sites
wheels 543 Posted June 22, 2011 Share Posted June 22, 2011 Or PVC pipe and wrap Carbon fibre tape and resin around it. Link to post Share on other sites
Kiteroa 8 Posted June 22, 2011 Author Share Posted June 22, 2011 That's how I did the curved tillers on my GBE! It's a mean idea. Structural PVC.... If you cover it with release agent, cure the carbon on the outside, then heat the whole lot, sometimes you can twist around and slither the PVC tube out leaving the carbon. That only works with short or larger dia tubes though.. Actually, the bees knees is low melt temp alloy rod. We used it for making carbon raidator and internally tooled air lines for the F1 cars. You machine the shape you need, laminate over it, cure then exceed the melt temp of the alloy at the end of the cook. It runs out as as a liquid to be used again. You can make anything with that stuff...... Link to post Share on other sites
Gappy 9 Posted June 22, 2011 Share Posted June 22, 2011 Adrian Go and see Neil and Steve at MMF they do all of the cooksons bow rails etc they will sort you sweet as Cheers Gappy Link to post Share on other sites
Kiteroa 8 Posted June 22, 2011 Author Share Posted June 22, 2011 Thanks Gappy, I'll do that. Link to post Share on other sites
Marshy 30 Posted June 22, 2011 Share Posted June 22, 2011 Stainless will look a bit out of place when everything else is black. Hard anodised alloy is the next best think I think. That about powdercoated stainless? it comes up very tidy and at least if you scratch it it wont fizz? Plus i thought composite Stantions had issues with Cat 3? Link to post Share on other sites
wheels 543 Posted June 22, 2011 Share Posted June 22, 2011 Or how about Black chrome. It has a stunningly beautiful finish. I see no reason why SST can not be Black Chromed. Talk to an Electroplater about that. The only stumbling point I could see would be the lengths that could be done. Link to post Share on other sites
Grinna 2 Posted June 22, 2011 Share Posted June 22, 2011 Pay the neighbours kids to colour in the stainless steel pulpit with Vivid markers Link to post Share on other sites
Guest Posted June 22, 2011 Share Posted June 22, 2011 I note you mention carbon fibre. Are you aware that carbon fibre does not pass the safety regulations? not stirring just observing. Link to post Share on other sites
Guest Posted June 23, 2011 Share Posted June 23, 2011 another option is Neil at The Steel Works on hillside Rd Glenfield. almost opposite cooksons. he has done all sorts of tube bending and fabrication for me. 447 6738 though he does get busy some times (good guys are always in demand. Link to post Share on other sites
Kiteroa 8 Posted June 23, 2011 Author Share Posted June 23, 2011 I note you mention carbon fibre. Are you aware that carbon fibre does not pass the safety regulations? not stirring just observing. Yup, I'm aware of that. But I have composite tubes, not carbon. So shouldn't be a problem. Link to post Share on other sites
Quarterback 1 Posted June 26, 2011 Share Posted June 26, 2011 WT The staunchions and rails I made for Maximus in SS to replace the copo ones, we got coated mat black by a company in South Ak who coat automotive parts Quarterback John@sparloft Link to post Share on other sites
Absolution 7 Posted June 26, 2011 Share Posted June 26, 2011 Probably these guys... http://www.hpcoatings.co.nz/ WT The staunchions and rails I made for Maximus in SS to replace the copo ones, we got coated mat black by a company in South Ak who coat automotive parts Quarterback John@sparloft Link to post Share on other sites
Grinna 2 Posted June 26, 2011 Share Posted June 26, 2011 The only marine metal fabricator I have had recent experience with is Rusty at Whiting Power Services. He does beautiful engineering and welding work. Link to post Share on other sites
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