Interesting thread with Deadshaper.
Hat's off to the designer, CAD guy, and the people providing feedback!
PM's on the way. -J
Be safe, have fun. -J
I love watching a new product being engineered.
That last shot looks great.
I would leave the bottom of the box completely flat though.
At least the center box.
As the router will only cut it flat.
Those flanges will not press through the stringer and box will not sit flush.
Surfboards made by hand. Not machine.
Don't know the exact dimensions, but I'm guessing route out an extra 1/16" deep, problem solved. Filled with resin when you install.
Although I don't see any harm from leaving the bottom flat, either. Or sanding it flat before install?
For quads it won't matter anyhoo.
Awhile back Wood Surfboard Supply offered these...
You could build a wood fin around the tab (leave a slot)
But they discontinued it, because it was too expensive to make, and brittle so it broke off easily.
Could you and your computer friend come up with a 3-D printed version? And maybe same for thruster / quad fins? 'Cause there are a whole lot of people who would love to make their own fins, but the tabs are the hardest part. Would be cool if you could.
You mean something like this Huck? What are your preferred dimensions for what I've shown in the drawing and the thickness of the "blade"? I know what the rest of the dimensions need to be as I have a few fins I can measure up.
Wow RDM, that's it! Any thickness of tab will work, because you build the fin around the tab, the critical factor is at what thickness do you perceive that it would be strong enough to resist snapping off under normal use? Since you know your materials best, it would be your call. thanks!
I think the blade thickness should be up around the 6mm mark. This makes for a thicker fin, but if we are using wood shells that's OK I think.
I really like thick fins also, so I don't see the final fin thickness as being as being a problem if it ends up at say a minimum 16mm if we use a 6mm thick blade - I'm sure not everyone will agree though.
What was the thickness of the blade on the ones in your image? What about the rest of the dimensions I have shown? Are they suitable?
great stuff , Brett and Rohan !!
if it saves me having to cut out the two frcs tabs when I send fins , I'm ALL for it , guys !
Can you put them in the next board[s] you guys make , please ?
IIRC the tab was about 5mm. 6mm would be fine. The rest I'll trust you on, not being fluent in metric, and not having a fin handy at the moment. Plus, I am thinking single fin boxes are pretty universal, no? As long as the base fits securely in the box, the fin can be built any size. The one shown was designed to be cut down if need be, according to the rake of the fin. I like that yours is already raked.
OK. I'll measure up a few of my single fin templates and try to design the blade and locate it on the base in a manner that suits most designs. As you've said, it can always be cut down by hand if need be anyway.