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Jet propulsion pump

by toto45 Aug 20, 2015
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can i have the full version with the propeller please? mister.kasti@mail.ru

hello where you can download the drive screw for this print for free

Just bought it on Cultz from you, nice job!
Can you tell me what bearing you put in the diffuser 8x22x7? 8x22x8?
How do you hold the bearing in some plate? I see msall screw holes, can you explain how its all held together?
Also, how do you attached the impeller to 8mm shaft? just a small through nut and bolt? Your description says 10mm shaft, yet SLT shows 8mm on Cultz please confirm.
Anything else you use to assemble diffuser and impeller? those are the only parts im needing for my home project :)


So... I want to construct this. I want to construct 2. I'd like the files to be a complete unit I can then put into my 80" offshore racer.

These files, or cult3D?


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I found this place first.. I seems after I was missing parts that what here is this is a upgraded parts for cults...I had never heard of cults3d before.. So I paid for the few parts needed.. You just referred to the other place and never said these are not the same size... I don't mind giving someone money for something like this.. But I would expect all the parts to work together and be updated..
What a f..n mess.. So what parts are the latest ? ..
Should i just scrap the hours of printed parts I made from here... and Only use the cults parts?
I only printed the one part from cults.. just 4.5 hours printing it.. should I resize them.. Do you have the stl files that fit these parts for the parts for the parts that were only posted at cluts... What size are you using ?

And thank you for helping me with this.. I am printing this for my son to use.. It looks like it will be lots of fun, when we get it done..

Hello Don,

frankly speaking, I do not appreciate the way you are talking, that much. It is cleary written in the summary that the latest files are on cults3d.
So if you mix things, you should not complain when they do not fit. Simply use the files from Cults, and it will work.

First it is not clear.. If it was I would not have gotten into 20 hours of prints in this mess...
Next.. I haven't bitch on cults3d where you make money or complained to them.. to get you kicked
And... I haven not asked for my money back.. And I am not going to post the files for free out of spite..

You posted the same item on two different places referring from the free to the paid.
And the items are not the same size and no place did you say that ..and I know it is unconformable to be called out on it..

But you did it and it cost me time and money. And you don't like I am talking about it.. you had the chance to email the
files I needed and I would not keep posting there in public..

My last comment.. Be more careful next time..

You simply have to read what is written!

I printed the 4 parts here.. Then I when to cults3d and paid for the parts there...
Then printed the diffusor_a.slt and it doesn't fit.. parts here 80mm across the paid for 85mm..
What's the deal? I am disappointed.. So before I spend hours reprinting the parts and guess at resizing the parts to
fit, could you send me the ones that fit here or what scale I need to use.. like scale is to .94117 on the paid for ones..?

please add all parts send me on my mail please warsi1976@hotmail.com

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I printed twin jet drives of these and my rc boat (26 inch) is stupid fast, acceleration is off the charts!

Hi Toto, if you could mail me the latest files it would be greatly appreciated for a E-Surfboard i plan to build.
Regards Alex

can anyone let me know where to find the remaining two components. i downloaded the file and its missing the impeller and stator????
thinking of making one to put on a kayak!!!

mettug@hotmail.com mail please. Thx

I ve made this one, but very interested by the New one. I am wondering wich motor would suit it the best.
How much rpm is the more acurate for the propeller ?

I have new version. More printerfriendly and better function. I just uploaded it, Pls use the latest files.

Please send new version. rafyshi@gmail.com thanks.

Where are the rest of the files ?

Where are the rest of the files ?
I would be very happy to have them, as would these other people :)

Planning to make this for a boat. Would you be able to email me the prop and the part the steering connects to. Thank you.

are the new files availible on here? cant seem to find them.. thanks

Can I have the new files too, thanks! Planning to try this on my kayak. I use gmail with the same username as here.

can you send me the files too. tobiasdoblinger at gmail.com

thx tobi

I am also interested robomato at gmail.com

I would like please : yoanngrosjean at gmail.com


awesome construction, please also send me an email solarthermienator@gmail.com ! I plan to possible remix it with a plug-in fin I just constructed für surf boards and SUPs with USBOX insert. Which CAD tool do you use? I use most of the time Solidworks and we could also share the native solidworks files. I will send you the latests version of the fin tomorrow Monday :)


Please send new version. Mkedare@gmail.com thanks.

I do see a minor structural flaw. You have 2 bolt holes on a seam. If you rotated the hole pattern 22.5* it would greatly improve the strength of the design.

Hi there, that's a great design! Do you have plans to improve the design? If yes, then I have a nice suggestion for you. You could go for a magnetic coupling for the shaft instead of using the bearing. That would make it totally watertight.


Please, where can I download a CAD file. Thank you

Have you managed to complete this? It would go very nicely into my boat, and I'd love to get the whole project finished. Attribution would be made to you via your name etched onto the jet housing!

Can you please add all the parts separately? :)

here we go