GO-GO AirBoat

by macakcat Jul 15, 2015
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Nice design. Did you consider using the coins as batteries? I belive you are already half-way there with the copper coins.

But there is a HUGE design flaw.. if it sinks, you will lose SOME money, and also a motor, battery and a couple of hours of printing,

Maybe not do this in the open sea then. What´s wrong with the sink or the lake? The motor might survive too if it´s not salt water.

Some? You mean your life savings!

is your life savings $5?

But there is a HUGE design flaw.. if it sinks, you will lose SOME money, and also a motor, battery and a couple of hours of printing,

Incredible job with this model! After reading your description, its obvious I didn't pay enough attention in school...lol Made my head hurt even trying to understand all that :)

A well deserved winner ! I love the instructions, esp. the part about density, mass and displacement.

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Macakcat, great job.
Congratulations for the victory.

Wait, how much coke do you think I could put on this? For science of course.

At least a 12oz can. Diet Coke is lighter, so you may be able to put two cans... LOL

Why can't people realize that 3D printers just want print into thin air very good at all, and if at all not good enough!!! ??? It's just so funny how all these nice ideas get published and run up and they being just pure jokes. There are 90 degree over hangs all over this and tons of other designs on thingiverse that are truly just not designed to be printed. Yet, a little tweak or two in the CAD's and they would print perfect without any support what so ever!! Its just totally funny how people think a 3D printer prints......... :)

well if you have support material then what is there to worry about... not everyone is designing stuff to be used on cheaper printers, most of the time they are trying to experiment with the limits that their OWN printer can do, so if you have support why not use it... also I don't know how must you know about SLS/SLM printers or SLA style printing but you are not limited to what angles you have to print at. sorry but cheap FDM printers are not the only type out there!

My apologies sincerely about being such an out right butt hole and my rant on some designs not being designed for printing. Reading my post kinda throws me, as that just is not me, or my normal me. :) I do remember leaving a post with such a rant, and have downloaded numerous models that are just not thought out and CADed for 3D printing. Thinking about my post now, i think i left that post after downloading several models and not the first one would print with out using support, when just a very slight change would make a prefect print without any support at all. I guess it was just a bad day of 3D printing with me and i do apologies again for my blow-up and disrespect for your fine design.

As for the value and cost of 3D printers ........ i don't think those with 10-20 thousand dollar printers would be downloading plastic boats to print on a makerbot site for printers made for FDM printing. :) Just would not make since to me.

I guess just bottom line, i really liked your boat and wanted to print it, yet found problems i would have printing it and it just upset me. I'm sad at myself for leaving that post, but take the brite side of it and admit you found someone that lov'd your boat so much he 'throwd a rod' and spilled he's guts about it ........ :) . Thanks for the reply.

Thank you for getting back to me! I am not the designer of this boat, I am a grade 12 high school student using the Stratasys Uprint Se and we have been able to use this printer in order to inform and enlighten the younger grades and the parents in our community about the possibility's and limits of 3D-Printers, Support or non. I have also been testing the ability to print multiple component objects that move freely in side of a solid casing which can be accomplished with out support material, hence my "herringbone gear key chain" which actually surprised how easily is moves once the support material was dissolved.
happy printing and keep experimenting!!
also Macakcat, nice design!!

Hi, Rickswirebox! I purposely designed the blade guard as a visual tease to help new users realize their FDM printers can surprise them. It's relatively thick (multiple shells) with a large radius, so any properly tuned FDM printer should handle it well because the stepover per layer is small relative to rise (you can see what I mean in a slicer preview). There's some interesting bridge tests and torture tests on Thingiverse that take this to the extreme. Fans are a must to cool the filament quickly for those. Everyone's entitled to some bad days. Don't feel sad and happy printing!

Well, I just wanted to say: Well done! Nice job, really. That gives a precise idea of how to handle a Makerbot chalenge, I must say that it is a really cool interpretation of the challenge. makes me wanna participate on one of them one day, maybe ;-)

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Wonder if you can go about this without all the fancy electronics and go about it a more mechanical manner. Since you're sensing the distance the cylinder floats up the tube to activate the motor, it follows the same principle of a water tank of a toilet. You can have the cylinder connected to a lever of some kind and when the water rises to the right distance the lever will close a simple circuit thous allowing a battery to power the motor. Ideally you'll only need a battery, motor, 3 bits of wire and possibly a resister.