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Topic Title: Any of you into 3D Printing?
Topic Summary: Including surf gear?
Created On: 07/31/2017 07:45 PM
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 07/31/2017 07:45 PM
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MikeNeptune

Posts: 23
Joined: 07/31/2017

I started teaching technology a few years ago and switched to older kids, so it's been a lot of fun designing in various CAD programs and printing projects. My lab is about to get two more 3-D printers in addition to the one we have now, and I'm putting the finishing touches on a desktop CNC machine (Shapeoko 3). 

 

Do any of you do that kind of stuff?  How about surf gear?  I have a friend who keeps asking me to make him some 3D printed fins, but I'd rather use the CNC for that.  



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 07/31/2017 07:51 PM
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moody

Posts: 3452
Joined: 07/24/2003

Just FYI, the Melbourne Makerspace has 3d printers, and people to help you figure t hem out

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[Feminism is] a socialist, anti-family, political movement that encourages women to leave their husbands, kill their children, practice witchcraft, destroy capitalism and become lesbians. ~Pat Robertson
 08/01/2017 09:05 AM
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RegularJoe

Posts: 2979
Joined: 11/20/2011

A good, charitable task you could undertake, potentially for some profit, is to do the CAD design for an O'Fish'l fin box and some fins to fit in there.

Lots of people have boxes already, but need fins in them. I suggest doing the box mainly so you have a test bed for the fins, but a few people have broken their boxes out and need new one, or maybe want a new board compatible with a stash of fins they already have.

Crank out some fins of varying size, sweep, shape, and foil.

Build a small waterflow tank, submerge a GoPro camera, and record the water flow over the fins at 240 fps to compare designs.

You can use strain gauges, or even simple springs, to measure drag and lift of each design.

Make some fins foiled on both sides, and you can extrapolate the results to an airplane wing.
 08/03/2017 03:41 PM
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MikeNeptune

Posts: 23
Joined: 07/31/2017

Great ideas. Thanks. 



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