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Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!
Jetpilot212

3D-Printed Hovercraft

by Jetpilot212 Jun 28, 2015
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Hi,

our version is near to completion and pretty works as expected. Congrats to the designer.

Have you thought about making the motor house revolvable and rc controllable? This would make steering much easier. You could even go backwards. In addition you could get remove the rudder and get some more space for other gadgets :-)

Hi,
that sounds great!
Yes I thought about it and your idea was my second prototype. I uploaded it today so that you download it to.
Here is the link:
http://www.thingiverse.com/thing:1131633

Keep it up!
Jan

3D-Printed Hovercraft

Hi desiner,

Two “Hacker A30-12M Brushless Motor”
One “Pichler Boost 18 Brushless Motor”

Please can you specify for both the KV?

thanks

Jan

Hi,
the Hacker A30-12M has a KV of 1370 rpm/min/V and the Pichler boost has a KV of 1050 rpm/min/V.
Best Jan

Hi Jan,

Did you test the hovercraft also on a lake?
I am printing now the parts.

Hi,
Yes I tested it on a lake and it worked very well.
On the lake the front motor just needs more power then the back motor.
I'm very excited to see your hovercraft!

HI Jan,

Nice to test it on a lake.
What are your advice?

1370 kv at back side and 1400kv front size?

I am angry for water in the front motor....

Jan

If you want you can try it. I adjusted it with the trim function on my controller. I combined throttle and aileron for the lift motors. So if I push the throttle stick forward the motors run at the same rpm. And I can adjust the power of each motor with the aileron stick.
So you got water in the front motor? That's nearly impossible because there are two bicycle tubes which float and a styrofoam base. The motors are located over the base.
Jan

Hi Jan

I will check your comments.

item Verkleidung1.1.2 and Verkleidung1.2.2 are 32,5 to short.
I do not print it yet, but I puzzle the parts together in cad program.

https://makezine.com/wp-content/uploads/2015/07/Ma%C3%9Fe2.jpg
https://makezine.com/wp-content/uploads/2015/07/Ma%C3%9Fe.jpg

14 inch - 9.6 = 4.4
4.4/2 = 2.2
Not 2.3

With water I mean, (high) water at the front of the hovercraft, that will be over the hovercraft and came to the first motor.

Best regards,

Jan

Hi,
I'll check it tomorrow. But I can't imagine why they are to short. I printed the hovercraft with the same files...
I measured it in cm so it could be that I calculated it wrong. Sorry about that. I'll fix that too.
Best,
Jan

This is so awesome. When I was in highschool the first remote controlled hovercraft came out and I soooooooooooooooooo wanted one... but didnt get it. I just have to try this!

I'll put a beginner variant on thingiverse on Saturday. If you want you can start with this one because it's easier to build.

Hi,

I've two questions: What is the additional weight that the hovercraft can carry with Hacker A30-12M motors? And, do you really need the power of the Hacker A30-12M, or would motors with some less power also do the job? That would be cheaper, one could use ESCs with less current, what again would be cheaper and would reduce the weight, ...
I'm starting to print parts for my own craft now, and I'm planning to steer it via wireless using a RaspPi, maybe adding a camera, ...

Greetings,
Matthias

Hi,
I can carry up to 500 grams of extra weight but then the operating time is only two minutes.
Of course you can use another motor. Just try it. If you want you can use only two batteries that reduces the weight too.
Please keep me up to date.
Best Jan

Much better than the penny shipping boat!!
I dunno how they picked winners it sure wasn't based off likes!!

Thank you! I think they selected the winners how easy it is to print it.

Hey I found the perfect motors for this build.
http://www.gohover.com/
Let me know if this kit works

I don't think so. The Hovercrafts look very small and light. They have also only 4-8 AAA Batteries! That's not enough power! At all I think those motors won't lift my Hovercraft.

Hi,

Is it possible to provide me a also a STP file of the complete assembly. I to use Inventor but an older one, so there is no possible way I can open your Inventor files. Converted to STP I can open and edit the parts myself.
My neighbor's son is eager to start building this one.

Thanks,
Chris

Hi,
I added the STP file.

Thanks a lot, But something in the process went wrong I think
Normally when I open an STP file there are dozens of files to be separated from the STP 'masterfile'.
In this case I only have 2 separate files, 1 tire and the second large one is the complete hovercraft. Strange, never had this before..
Could you try converting to STP from an earlier Inventor assembly please. If you convert it from IPT's and nothing else I think it should solve the problem. If I'm not mistaken you made that conversion from an existing STP combined with a ipt file.
Thanks in advance...!

All files are now available as STP files. I hope I didn't forget anything.

Thank You...!!!

I wonder how well this craft steers. You must be sucking all the air from the thrust duct straight down the back lift fan! Does this thing even go forward?

It works very well. There is also a video on YouTube and the link is in description.

congrats on being on adafruits 3d hangouts: https://www.youtube.com/watch?v=R1E2ciAHDYk at 1:02:59!

your welcome. the second i saw something id seen before, i just had to say that its on there because it wasn't in your links.

Looks great ;-) I'm thinking of taking your design and make it to an autonomous vehicle by using ArduRover. However, I do have some upfront questions: Can you tell me about the needed prop-size, the motors that have been used, and if thrust and lift are powered by one or by separate ESC's?

Thanks four your help

Thank you! That's a great idea. But how will you manage the altitude? For example on grass you need more thrust then on water.
I used for the lift motors two "Hacker A30-12M Brushless Motor" with a three blade prop 8x6 or a normal prop 9x6.
For the push motor I used a "Pichler Boost 18 Brushless Motor" with a 5x4.5 prop.
Every motor has its own ESC so that you can control the rotation speed of every single motor. It is very important because on water the front lift motor needs a higher rotation speed than the rear one. Otherwise the Hovercraft would immerge with the front.

Thanks for the info. Measuring altitude or lift isn't that complicated. I'm thinking of using a flexsensor as used in some RC hydrofoil-boats to measure the distance between boat and surface. Additiponal data such as velocity, power consumption, etc. might also be helpful in controlling lift via rpm.

Please let me know when your Hovecraft is working! It sounds very interesting

Did you try it on water ?

Yes of course. It worked very well.

Great design! but the noise seems to be too much ^.^"

Thanks! It is not as loud as a lawn mower. And the neighbours didn't complain about it :-D

I have to +1 the coolness of this project.

With everyone jumping on the quadcopter bandwagon they have forgotten the glee of hovercrafts.
Now scale it up a bit a ride your hoverboard down the street! :-)

Thank you very much!
That ist the next level :-D

Thanks for a great project ! Do you have STL files of the motor rings and also a DXF of the foam base.
Thanks for your help.

Thank you very much! Sorry about that. I added the STL files (ring 1, ring 2 and ring 3).
I also added a picture with important measures.
Please let me know, if I forgot anything else.

Comments deleted.

i knew i had to store that old childs-bike tire for a reason!

This is sooo cool! Can you take a video of it in action and post the video on Youtube and provide a link to the video here?

Thank you! I added the link!