Here's a few pics from the CAD guy. You can see we've got something similar to a Futures box overall but also using the grub screws from FCS. There's nothing else , no inserts or moving parts, other than the screws.
The single unit Futures box is capable of holding all the different lengths and widths of the 3 types of fins and the placement of the screws allows you to hold all the old FCS twin tab fins, the new FCS II fins and all the Futures fins as well.
There's another screw that's not shown that allows you to tune the side fins back and forth by 2 inches to get a longer turn on your backhand or sharper on your forehand. Or vica versa...
You choose a fin, line it up with the screws and screw them in. You can even mix and match and have a different company fin in each box in case you were travelling and broke the matching fin.
i think were going to work on it as a retro fit during the prototype stages and then test them as a New install later on and most of the hardware kit will be Futures but the square end on the box may need some change.
Ive sent the computer STL file to the 3-D printer and paid for just 2 original prototypes to be made in white plastic, one for me and one for the expert CAD designer who turned my idea into reality.
There's always issues with square corners when it comes to using round routers.
I'll get the prototypes from the 3-D printer on Monday via Express Post.
Is there any interest in this ...?
Do you secure the Futures fin with the side screws? I don't see a rear grub screw in the traditional Futures placement.
Surffoils, I love how you just get shit done. No talk, no BS, you just do it and test it. Cheers to you. Curious to see how the 3D printed final product turns out. It ain't perfect, but it's fast and cheap. Good enough for this kind of experimentation to prototype with.
Yes Lawless, the futures are held with the side screws and you can use up to four screws to hold them but it's designed to be secure with just two.
It's my belief that the internal slot of any finbox doesn't 'hold' the fin but when the screw is tightened on a diagonal, it pushes the fin down and against one side of the box. There's not a lot of force required to hold a fin in place but it's more about stability.
I have to declare that I couldn't have gone this far without the generous and free assistance of the CAD designer who offered his services for this project. He said that previously I have been generous to him thru Swaylocks and he is paying me back.
Boxes are in the mail from the 3-D printer. Be here tomorrow and I'll give you all a good look at them.
What a great way to make something...
Think it up,
get it professionally drawn,
send it to the 3-D printer.
Here's another computer rendering...
This has been fun to watch and kudos to you for the inspiration and follow-through. It seems you have dialed in the universal fin fit component, but what about the installation process? A fin box is only as good as the installation is simple. How will you accommodate the little diagonal thread bumps on the underside? Do you plan to just crush them into the foam? If so, maybe they should be pointed instead of round on the outside. One of the great things about FCS 2 and Fusion install is the single route and minimal use of resin. Thus far it looks like you'll have to do at least 2 passes with two router bits, plus something to accommodate those thread bumps. The final phase of this developement, in my opinion, would be to figure out the cleanest, simplest installation process possible.
Hi Jamie, I'm not doing this to become a fin manufacturer, its a bit of fun to see what can happen and maybe do a few boards for myself with these new boxes.
But the plan is to do a copy of the futures install with a dash of difference here and there.
For those bumps on the side, fit the box into the routed slot and press down gently leaving a slight indent.
Roll a piece of sandpaper into a tight loop and rub into the indents at 45 degrees and fit again until the box sits flush.
Even if you rub a thicker than needed groove its a few drops of resin difference.
Ghostshaper, the 3-D printed boxes are really rigid, they flex about the same as the real thing. They're a mm chunkier than the real thing but in the surf I'll find out how good they are. Ive tried lots of fins in them and all the fins fit and hold. Its a bit of a disappointment really, I thought it would have been harder to design something capable of taking all the different fins.
They're about $25 per box from the 3-D printer but it's just for me so the price isn't a big deal to use on one or two boards. I'll put them in a few boards and move on to something else.