The EasyGoat eFoil from CabraTec thread - Info for the DiYer

I agree, looks under-powered. That might be why they cant use a duct! It makes me cringe when they try to justify it on video. The guy claims that the wings need to be sharp and are more dangerous, BS. I run super dull edges on my kite foil so ā€˜when’ (not if) I hit them, they dont cut! Still hurts LF. My kite foil is good for 22knots with dull edges, which is a lot more than the 8-10 knots that efoil does. It pisses me off when people put products to market and try and justify poor design. That video showed the typical learner Taco towards the prop about three times!!! Rant over. :face_with_raised_eyebrow:

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@michion couldn’t agree more! also they make it look way harder than it actually is to foil. The lady says something along the lines of ā€˜as soon as you get out of the water, lean all your bodyweight forward so you don’t lose balance’ but the only reason they need to do this is to hopefully stop the wing from stalling. It seems like they are rushing a sub-par product onto the market to me.

Interesting to see how many they sell, and how many mechanical failures they have :joy:

@michion, your right its a matter of when someone falls into the blades/foil, jet surf guys are lucky it didn’t happen during the video shoot really… And this is my concern, the average Joe who see these things efoils, in general, have NO IDEA of the learning curve, balance, and how easy it is to fall into the foil area and they will get hurt easily.

Looks like the board needs to be pumped up super hard, there is a part in the video where the battery/foil section is on bulging out the top of the board, I wonder how its secured in there, more than a pressure fit I hope.

The unit concept is awesome, inflatable board, quick setup, but its the safety for the riders that is most important for everyone, company, user, and the sport in general.

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During the video they say:
JetSurf: 15Hp (11kw)
eFoil: start 3HP / glide 1.5HP (2.2 / 1.1kW)

A duct should arrive soon … which should not improve your feeling…

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HI, thanks for your comments.
Jetboard Tour stoped at our place when driving North and they all had 10 to 15 minutes / person and they all wanted to get photo foiling. This is not safe I absolutely agree with you. I wish I could slow them down so they could become familiar with the board first.
The board is underpowered ? :slight_smile: Maybe you are right, but I still can not use the full power.
This is 80 percent throttle start. Have a nice weekend and please keep with your feedback. Mira - CabraTec

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nice ride :slight_smile: , have you measure top speed? or at least at 80%?

Hi,
We have the Easy Goat from Cabratec (CZ)
I’m 96kg, and believe me, its not underpowered !

I start at throttlle 50% (on knees)
Never tried full throttle, maybe we are not good enough, but the power is way to much to keep the board down.

We (Ina -> my wife and me) know a bit about hydrofoiling, witch is of course a different sport.

regards Obbe and Ina
(facebook search: both van den bijlaard)

Hey bijlaard, what is your feedback after 8 months of use ?

Hi SoEFoil,

We just started again after winter time :slightly_smiling_face:
Batteries looking 100% , in a few weeks i can tell you more .

Regards

Hi
Is it geared or direct drive?
Do you have a good riding time?

Hi Bender,

It has a gear, dont ask what type…
The gear was broken, they repaired it (garantee)

riding time good 1 set batteries 25mins (i’m 100kg)
You can put 2 sets batteries in, (wil give a big 50mins riding time?)

Waiting for the new 2019 remote control, (now using a 3d printed version)

rgds

Thanks for the Infos

Hi Mira. I just discovered your new prices for a complete package: 7247€ incl VAT, 5990€ without with carbon wings.
Your second season is about to start.
Have your signed partnerships with rentals ? If yes, can you tell us more ?
On a technical side, what can you tell us ? (motor, ESC, gearbox, battery …)

Seen here: http://www.cabratec.com/blog/, your remote has everything I am looking for : board battery percentage, 3 throttle modes (Beginner, Normal, Pro), GPS speed real time, PAUSE, 12 hours operating time, Wifi updatable when new features will be released.
Do you plan to sell it to DiYers ? :grinning: If yes price tag ?

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Hi all,

I recieved in a PM a request for some more info about the easy goat from Cabratec.
For maintenance in winter time i just did lipo storage as described in the video, batteries look ok.
We did use this Efoil about 4 times then gearbox broke again.
As the gearbox broke for the second time i sended the mast (Tbar) to CZ for repair.
They know what the problem is and will fix this for good.

The ESC i had broken last year, i could not find a reason for that, i now made a small medical waterpump inside the board, so it does not get overheated again,:

The new ESC at Cabratec was about 350euro ( if i remember correct).
until now the peristaltic pump works 100% temp of ESC is about 25 degrees Celsius.
Looks like ESC is this one:

Last year we had just bad luck: the Cabratec remote broke down (prototype), gear broke down and ESC broke down, so when this start of season after 4 sessions gear broke again, we decided to buy a second e-foil, to be shore we can ride every weekend :slight_smile:

For 3 weeks we bought a Liftfoil : https://liftfoils.com/

I tried to upload some pictures, to bad my internet explorer crashes on upload

rgds Obbe

Used google chrome, upload worked :slight_smile:

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Thanks Obbe for this interesting and very documented report.
It seems that you’ve met all the issues that Diyers are facing.
It does take time for a manufacturer to offer a solution that is trouble free. I don’t see how the Chinese efoils could escape to this rule: buyers will need to do the maintenance as products can’t be sent back to Asia… That is how reputations are made. Then there is the price tag and I am sorry that you had to spend such an amount of money to be able to enjoy efoiling during weekends. When passion is there…
A friend of mine has just rediscovered windsurfing… on a foil. A 2002 windsurf board with reinforced tuttle box plus a 10 year old sail that both cost 50USD plus a 500USD Neil Pryde foil and he is having a blast.

Don’t hesitate to write a feedback about your new toy in the dedicated post :wink: L… efoil thread: info for DiYers especially if you have technical info as you gave us in your previous post :ok_hand::+1:

Writing this post up, I have just realised how difficult it will be in 2019 and 2020 for a brand to be present in a efoil rental. A rental can’t afford to face all the issues you met in the past months during the first day of use. So the presence of efoil brands in different rentals is today and for a long time the best possible marker for a efoil brand reliability. Therefore the technical choices of these particular efoil brands must be observed carefully by DiYers.

Hi,
Thanks to Obbe for review. I would just add one detail. The board he has is our prototype sold out of any batch in middle 2018 as ā€œunfinished board that we can maintain and finish during the winter, are you sure you want it?ā€ and was never supposed to leave our warehouse. That was the deal and that is what it is, now from 50% replaced. Also in 2018 it was the only option to buy Efoil unless you payed 50% Liftfoil in 2017.
The Obbe’s gearbox did not break, just disconnect. All early 2018 boards required to check the water tubes are not twisted after assembly by blowing them. (manual chapter: Blowjob) Remote control was a pain for long time. None of this is issue today.

the ESC is modified 300A Swordfish as noted (standard Soft start is still too sharp for Efoil, but is great regulator with heat gain about 15 degrees, when water coled! No pump is needed. Alu plate is also enough for it if you bring it back to water every while. You might have seen it here on another prototype:

It may look like EasyGoat was released too soon and is true we came across various troubles last year. But was not. We would never find the weak points without giving it to people(not Diyers and engineers, but surfers, doctors) EasyGoat would never be where it is now. And I still believe it was a fair price as today is.
Last 6 months there was working one person JD as a full time job on single part… remote control and the result is that non-surfing people can now foil in few minutes. Let me share our latest video from a week ago.

Thanks to SoEFoil for good point with Chinese companies. There are dozens of webs in China and Europe, all full of grate designs and 3D renders. Mostly no videos, no boards sold and no warranty.
This is one of the reasons why we are selling in Europe more than anyone else. Even the big players had issues like: Broken Lift Efoil - Products - FOIL.zone Important is you have where to go if you have any trouble and next year the year after. I personally live in the warehouse in Pilsen, where we manufacture the Goats so anyone can come for the spare part or maintenance. And Yes there is new price. We want to keep the project sustainable. We want to see the rental and freestyle version and many many people foiling because it is a very special feeling.

Please keep with your suggestions you are a part of the development.
Regards Mira

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Hi Obbe, I have a problem with EasyGoat the propeller doesn’t rotate properly in water. How do I recognize if it is a gearbox problem? How can I fix it?

It is like with a car wheel .
Does your prop rotate freely by hand ?
If yes: might be a software or connection or configuration issue
If not:
When you feel the snag/blocking point.
1- put a mark on the stator aligned with a mark on a blade when snag occurs
2 - If the snag comes back with an identical period (N:1 reduction means at least 2xN turns) it could be a pinion issue.
3- random snag period could mean a faulty bearing

ELSE : try the accelerometer in your smatphone to sptot the spikes = micro snag
fixed rpm x time = rotation position = faulty tooth

Hi Sumache

Here a short video :slight_smile:

How to fix i dont know, i sended it to Cabratec they fixed it.

rgds

looks like disconnected gear… Is that the remote in the video the one of cabratec? or DIY?