I posted a picture of a titanium surfboard fin cross section and the post is immediately deleted. The fin isn't even for sale so leave it up.
You truly are the mad genius. I'll buy a set but will not pay a dime over $15,000. That is my final offer.
Whatever, I thought that people might be interested in laser sintered titanium fin construction. I notice that once again you claim to speak on behalf of 'everyone'... a bold claim.
I'll have the whole fin soon rather than just a test segment. It's interesting stuff to handle, very high tensile and super light.
Can we get a raise of hands for people that think Roy is here for free advertisement? Wait, don't. We don't need more attention here.
dude is it one million? can it do a bottom turn? dude im moving to nz maybe you can teach me a about sheep and surfboard building. are you still train to go to the moon?
I like it Roy. New materials and processes is what keeps any industry going. We like to see progressive surfing but not progressive ideas in what we ride. If one part of the design works it's a success.
Interesting looking fin you got there. Assuming it doesn't have much flex, how does it ride compared to a more traditional fin? Thanks for sharing, Roy!
Keep posting your weird weapons. you do good work. your boards are way too big for me, because I could never get them to or from the water. I wouldn't exchange retorts with Brew. He'll get his feelings hurt and rat you out to the authorities. He can dish it out in heaps but his pooswah get irritated when the dish is return in kind. He'll call the AAAAAAAAAAmbulance after.
Nice! Always some interesting posts! Does it have any flex?? On another note- did I miss something? This is the about the only original guy on here making stuff and everyone has it out for him?!? What ever- this forum keeps going down hill since back in '99 Least there is still #belmarNJ #saltlife
Chicharronne we are working on mid length and short boards again at present. Dlrouen as you've observed these are not flex fins, I do flex fins but they are quite different looking from what is usually seen, in order to keep the flex in the correct plane. The ride is very good, but the spitfire single fins I'm making are probably not ideal for 'Hull' type boards which rely on fin flex to get the required rail/fin convergence angle for turning. They work well in boards of the 70's singlefin type or any longboard with a fair amount of planshape curve in the tail. Clemson thanks for the encouragement. At $400 just for sintering a a short test section the development process isn't for the faint of heart (or wallet) so it certainly helps to have people enthusing. Radderbsurfin you are correct, wood and metal has a certain ring of the future primitive 'metal headed' variety. There are structural reasons for playing with titanium but the cool factor and high tech vibe of it can't be ignored. Sanblasters: yes no and maybe in no particular order, I hope that helps.
Well, everything flexes under load but no, the flex will be insignificant from the ride point of view. The fins are of moderate aspect ratio and are designed to be as stiff as possible. They drive strongly, have a positive accurate feel, and are almost impossible to spin out as the BLEF ( Bumpy Leading Edge) increases andgle of attack capability by around 40%, the fins still lift strongly even during the stall and thus don't stall abruptly or lose drive. BrewEngineer and half a dozen others like to imagine that everyone has it in for me just because they do, but in reality they are just a small very vocal portion of a large group. Most people just find this sort of thing interesting, as I do. .
It's not just something you're interested in, gnome, it's something you're selling. Selling for $400 a pop. You should do real well with that issue. Everything you post here is a result of your self-described genius. Say, did you ever piece together that pile of kindling in NorCal, aka your plank you label a surfboard? And what do you know about metal flex in re: a fin, or in re: anything for that matter? That hobbit farm that you reside on in NZ barely has running water & electricity. One of the several bothersome things about your existence, gnome, is that you post up on this forum with crackpot designs & claims that your products are vastly superior to anything else in the human experience. Truth is, you know zero about load-unload cycles, maximum cyclic load stress levels as well as Yield Stress. All of which you would have to be not merely conversant with, but expert with in order to design an efficient metal fin, particularly one that you deign to be safe & fit for sale to the consumer. Two words for you, gnome: Randy Rarick review. Oh, that's three; must have failed my metallurgy quiz.
You are mistaken, due to not having read the posts on this thread carefully. Currently no titanium fins are for sale. Nor if they were would they be priced at $400... as I stated $400 is the cost to produce the small fin section prototype shown here which is less than 1/3rd of the fin. A complete fin will cost me more than $1200 and the design is destined to be part of wooden surfboards yet to be built. Once again you indulge in the iniquitous habit of attributing fictitious statements to myself. Regarding the Ghost 13, she is well on the way to being seaworthy again, thanks to the dedicated efforts of Brad Tucker at Wood Surfboard Supply. Progress can be followed at the Tree To Sea forum. I have more than sufficient information for the task at hand, and flex is not a major design component of this fin: it is intended to be as stiff as possible. What do I know about anything? That is hardly a sensible question, since it does not define the subject of knowledge. Which in fact means that my residence does have running water and electricity.... a feature which has no bearing on knowledge of metal flex in surfboard fins... it is thus a 'red herring'. I do nothing of the sort, and if you wish to make such accusations you should provide examples, with links to the source. As I have stated, I have more than sufficient knowledge of the properties of titanium to allow me to design an efficient titanium fin. The strength to weight ratio of titanium allows far more strength than is needed to be easily achieved, as the calculations which we have made easily reveal. Furthermore I am not offering titanium fins for sale.
Stop crying. You got one smack on the hand after trolling me in multiple threads (and you didn't even stop). I thought you were like 40. You act like a child.
