What's with all the molds for sale

Location
Wisconsin
It's insane to watch. They spend weeks stacking the mold and the parts made In about an hour.

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I am shocked that you, one of the only very successful hull builders, just got accused of not doing research on materials used in your composites company. I realize he’s insinuating you don’t use the most exotic possible materials in your skis but honestly, do you absolutely have to? I would love to see someone’s actual stress calculations or simulations to prove you would need it. 10x more material money (guessing - hypothetical) for marginal benefit hardly seems worth it. It’s a jetski and half a pound isn’t significant. ...Given the builder like yourself knows what they’re doing.
 

SXIPro

JM781 Big Bore
the insert situation has been a nightmare on a lot of AM hulls. I was informed a havoc that was repaired, has pump or plate inserts silicone into place and I've found those fake rickers to have hardware store brass wood inserts in there. I've had problems with XFT and WDK inserts too. not to mention the fact that the crap just don't line up either because a poor or no jig was used in the build.
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Why is no one stamping hulls out of aluminum?

I'm guessing the tooling cost is a non-starter for a shape that would work for a ski. Boats made from fabricated sheets are much simpler shapes. Not sure if it would be a good idea outside of that, but I don't see that problem being overcome.
 
Give it 5 years tops and we will be 3D printing jetski hulls. Additive manufacturing is making leaps and bounds every single day. Looks like Revolver 3D printed their molds or at least prototypes already. Pretty sure they could do a jetski right now, just not cost effective yet.
 
Definitely can use a CNC router to carve a plug out of foam. Still requires a lot of finish work but that has been a thing for a long time.

3D printing a mold directly seems very plausible, I'm guessing it would still take some finish work.

There are also 3d scanners that can fairly easily make a computer model of an existing hull for the "splash a xxxx" crowd, or as a start point to modify things.

 
Location
nj
Give it 5 years tops and we will be 3D printing jetski hulls. Additive manufacturing is making leaps and bounds every single day. Looks like Revolver 3D printed their molds or at least prototypes already. Pretty sure they could do a jetski right now, just not cost effective yet.
That's if the sport continues to grow. Look at how long it took for someone to come out with a badass freestyle ski. To my knowledge The revolver and nitro hull plugs were c&c cut.

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That's if the sport continues to grow. Look at how long it took for someone to come out with a badass freestyle ski. To my knowledge The revolver and nitro hull plugs were c&c cut.

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You are right, but the good thing about 3D printing is once the tech is there, it doesn't have to be dedicated to building jetskis. Instead of dumping all this time into molds, tooling and mats that are good for nothing but jetskis, you just load up a new file and print off a hull between whatever else you use the machine for. Similar to CNC you could just pay a company to run your file a few times, wouldn't even have to invest in the equipment. Every wannabe hull builder on this forum with Autocad could design what they want and pay a company to print it. At least in theory.
 
I am shocked that you, one of the only very successful hull builders, just got accused of not doing research on materials used in your composites company. I realize he’s insinuating you don’t use the most exotic possible materials in your skis but honestly, do you absolutely have to? I would love to see someone’s actual stress calculations or simulations to prove you would need it. 10x more material money (guessing - hypothetical) for marginal benefit hardly seems worth it. It’s a jetski and half a pound isn’t significant. ...Given the builder like yourself knows what they’re doing.

Lol, I'd like to see you try and convince him that "half a pound isn't significant ".
 

Jarrett1999

Vendor Account
Thrust hasn’t making super freaks for a while, so brian threw the molds up for sale, I was there. Now for hurricane, I’m gonna guess... dk jr makes more money playing world of Warcraft.
 
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