What can we learn from this unique view?

www.facebook.com/Laurent.Fra66/videos/1804558369862484/

At last the final design of the 24 is done. It has been on a diet and lost as much unnecessary aluminum as possible and now comes complete with hollow in the foil. The base is Tuttle, but has the markings inscribed of a Powerbox to allow easy conversion. The 20 and 28 will follow and then off to the printers to get all the patterns ready for casting. More pics of the other fins soon

Were they able to give a % of weight reduction?
Looks great anyway.

Ross I have some two pack urethane foam here, it would probably be easier to pour that in and get good contact and adhesion over the whole surface.

All three versions are now finished and off to be printed.

28 CM FANGYFIN MKII


28CM FANGYFIN MKII




20CM FANGYFIN MKII



20 FANGYFIN MKII


20 CM FANGYFIN MKII

hardie said..
Who are you wise man of science?

Thanks Hardie, It's been a bit of a journey, but very rewarding now it's starting to come together.

hardie said..
If only you applied your genius for good instead of evil

Imagine this in the manner of Seinfeld's Soup Nazi:
" No Fin for you!"
( but I can't argue with your premise and if I had a heart it would probably ache about now)

Nooooooooo Not blacklisted by the Fin Nazi, OMG now I know hey they felt when the Soup Nazi banned them

Very nice Fang, very close to growing these parts (and boards)..............which has to be the future.

this is a massive project fangy I can imagine how excited you are, is this the first fin to be printed and is it aluminum

Haha, well spotted Morts! (and BTW the 28cm fin is close to 24hrs to print!)
The print material is plastic. The end result of the printing process is a set of 'perfect' patterns. The patterns then travel to the foundry where the moulds are made and the casting is done in aluminium. This process was done for the prototype MkII24. However, this time the printer is a much better,( both the machine and the operator! ) and the foundry has more experience with pouring the shape. All three patterns will be cast in quantities, so I might have to try and find some room in my shed for a lot of pieces of ally pretty soon. Ideally, I wanted to print directly to a usable fin and do away with the casting altogether. It is do-able, but unfortunately, there are no hard/strong material options available at a realistic price...yet.

Stretchy said..
Very cool stuff Ross

Thanks Stretch, but unfortunately it looks as though you are one of those bullies, who green thumbed Hards cutting and cruel post a bit earlier. NO fin for you!!
On the other hand Keef is a good bloke. Fin for you!

Hey Fangy, that wasn't a permanent ban from buying fins from you was it? How about I line up properly with due respect, hand over the money, then take 3 steps towards the cashier and gratefully accept my packaged fin, and make no complaints if you don't give me any free bread, and bow with deference as i leave the fin store?

Glad you made a 20cm as the rest will probably be a bit deep for Budgy most of the time..

Fangy,
how is the accuracy on the printer?

I spoke to a printing company about achievable tolerances looking to make fin molds and they advised that they weren't able to get near a 0.1mm tolerance is this still the case?