Hex core fin printed

General Discussion
1

Hi all,

For a new surfshop in Antwerp (http://havensurf.com/) I designed and printed a hex core demo fin.

Watch in 3D here: http://finfoil.io/s/r/j63wz

2

NICE work…love that program still haven’t had a chance to really show what I can do with it yet…

3

cool! what material is it printed with?

4

Hans, that’s a  nice looking fin. It’s amazing that the CAD is done with freeware. I  hope they give you some nice t-shirts.

5

Brilliant!  love that

 

all the best

6

Yes it’s all done with free software! finFoil (http://www.finfoil.io/) and OpenSCAD (http://www.openscad.org/).

 

@grasshopper: It’s laser sintered polyamide. A bit more flexible than the plastic FCS fins, but feel just as strong. Time will tell.

7

Hi Hans,

Did anyone ever 3d print some fin boxes for a thruster? 

Are they strong enough? Or just snap in half 3rd bottom turn? 

I was thinking of a box design similar to the surffinz box to fit FCS2 fins which have a wider base/better support than fcs1. 

Surffinz was a great 1 pass cut/install, it was strong, under the glass, and I’ve still got a few of their router bits lol.

The new design could be a little bit shorter than the original surffinz giving the tail a bit more flex.  

But if it costs $60 and 3 hours labour to print a set of boxes that snaps in half, that’ll blow that idea. 

Thoughts?

You could do the same idea using the Futures router bit. 

8

https://www.swaylocks.com/forum/81394/fcs2-compatible-3d-printable-plugs

you can find the plugs here, 3d printed in abs it’s 3 years that i’m using them no problem at all… 

9

Nice to hear a longevity report on the printed boxes.

Seems like if you can get them printed for reasonable money it is worth it.

First 3D vendor I used for work stuff quoted me like 80$ US a set.

Co-worker with a 3D printing hobby did them for 20$ US or so.

I still have them in box, not yet in a board or in the water.

10

Very nice. These guys ( Live3Mind )are printing custom boxes at any % up to 22% and some hexagonal fins also for the standard box price.

https://swaylocks7stage.s3.us-east-2.amazonaws.com/s3fs-public/97ECB13E-A210-4501-8E30-F5610E3538F3.png(image larger than 8 MB)

11

Hi all,

I am looking for help on how to do exactly this. I figure it’s not easy to do… I played around with a mix of freecad, finfoil and slicer settings, but failed. 

Finfoil gives me a stl, but how do I create the mesh? 

My goal is to have a shaped mesh that I can reinforce with a fiber/ resin mix and some layers of cloth. 

Plan B for the moment is to use gyroids as an infill, drill some holes through the outer layers to fill the structure with resin (haven’t tried it-theory from the web) and use my slicer options to split the fin right at the Z height of the (dual) tabs to get continuous fiber on both side of the tabs. That probably sounds strange for anybody who’s not into 3d printing ,but basically I will end up sandwiching some layers of cloth between two plastic parts and wrap that in cloth again. 

Any input is much appreciated… 

Thanks, 

Jasper