Search found 59 matches

by fabianpusch
Mar 21 2020 1:26pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

https://www.fechtner-modellbau.de/fahrz ... olben/?p=1

Something like that. Actually I am doing a little experiments with the actuator from Magura. They have a acutator for the hydraulic clutch...
by fabianpusch
Mar 20 2020 5:17pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Cool video 😃 really nice and your location too.
Actually I am building up a lot of things for the Jetsurf...new plates for a binding, a hydraulic throttle....
by fabianpusch
Jan 12 2020 6:22am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Hi Chris
Second hand, a 2016 race.
Waiting for some nice weather to ride it.
Actually I have sent the board to Jetsurf, so they can do a big check up
by fabianpusch
Jan 10 2020 6:49am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Hi Chris

Has always been the battery, the length of the cables,...
At the moment I have to additional banks and it is working.

By the way, I have bought a Jetsurf ;-)

Cheers Fabian
by fabianpusch
Nov 07 2019 11:02am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Yes you are right and a lot of E-Mails too.
Thank you, will follow up with one tomorrow 😃
by fabianpusch
Nov 06 2019 1:39am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

chris_kline wrote: ↑
Nov 04 2019 7:57am
fabianpusch wrote: ↑
Nov 01 2019 6:01am
Hi Chris
Any news?
Did you already sent an email?
Cheers Fabian
hi fabian.
sorry mate, ive been real busy with work etc the last week.
ill see if i can get it to you by tomorrow
Sorry for writing an additional message 😜
by fabianpusch
Nov 05 2019 4:47pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

No sorry...I have my home made one.
by fabianpusch
Nov 01 2019 6:01am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Hi Chris
Any news?
Did you already sent an email?
Cheers Fabian
by fabianpusch
Oct 25 2019 11:00am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Perfect, I have Catia V5, so Stl., Step, Iges.,...nearly any format.
Please, if it is ok for you, send me your number.
I would like to talk to you....maybe we can go one step further...
Have a nice Friday evening
Fabian
by fabianpusch
Oct 25 2019 7:01am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Hi Chris Both would be fine for me and a big help. Actually I have an offer from China 1200$ for an Impeller because of the complex geometry (CNC). Maybe I am actually doing an overengineered solution. I am really interested in looking at your files. My private E-Mail fabian.pusch@googlemail.com I w...
by fabianpusch
Oct 24 2019 12:06pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

I am trying to build up a pump. The problem is the CFD actually...I am not sure where to start. Second, I have already tried to print one in metal. Big fail because of the supports, needed to build up the impeller. Which diameter are you using? What are the main specs? Maybe it is possible to give y...
by fabianpusch
Oct 23 2019 1:28pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Once again, big congrats from my side.
Good job, nice ride, cool video and a nice spot.
I would like to talk to you about your jetpump.
If it would be ok for you :D
by fabianpusch
Oct 21 2019 1:21pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

One question:
When I have printed something from metal there was a shrinkage.
I have checked i.materialise.com what was the shrinkage there?
I think this is still something unknown with steel?
by fabianpusch
Oct 19 2019 1:14am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Hi Chris
To ask for a est. prize I need the building volume...or something like this.
But the metal parts are really expensive. What about CNC?
by fabianpusch
Oct 10 2019 12:04pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Cool, I have seen it already.
Are you buying the defect Jetsurf?
by fabianpusch
Oct 09 2019 10:35am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

That sounds cool, I am trying to animate a PhD in fluid technical systems and my old connections to Formula1. I think building up a jet is not impossible. The hardest thing is spending money for the itereations and the prototypes. By the way, we have multi jet HP printer and also some DMLS metal pri...
by fabianpusch
Oct 09 2019 5:49am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

I also think, that the jetpump could be optimized e.g. more pitch.
Has anyone optimized the MHZ Jet?
I am also trying to build up a pump for 80mm, a target rpm 8000-9000....anyone interested
by fabianpusch
Oct 09 2019 5:46am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Yes, you are right. The battery is the bottleneck.
It is not so easy to find a lightweight solution with a high output.
But at the meantime I am really thinking about to sell all the stuff...my partner is going mad with the first 2 boards hanging around and the actual one which is in our guest room ðŸĪŠ
by fabianpusch
Oct 08 2019 3:28pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Hi
It is the MGM 250-63 HBC - industrial version. It is more or less the same like the 400-63 RC version.
The jetpump is a modified 64 MHZ version.
By Fabian
by fabianpusch
Oct 05 2019 10:35am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Okay so the motors are more or less the same from their behaviour
by fabianpusch
Oct 05 2019 7:51am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Chris which kind of motor is your actual model? I will try that timing setting the next weekend. I am really looking forward to see an influence. If you are interested in such a battery, let mw know. I am thinking about to buy a 30Ah version. So as a light back up. The 53 for the holidays and the li...
by fabianpusch
Oct 05 2019 7:15am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

At the moment I am using 15 degrees.
What timing have you set up?
The battery was with a special prize 2000 Euros for 17 cells. But add on there is the BMS, which is nearly 600 Euros.
So not a cheap solution.
Have you installed an additional waterpump?
by fabianpusch
Oct 05 2019 6:18am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Okay, thats interesting. I have never measured the waterflow. On the next Saturday I have planed to do some tests. Water bypass from the jetdrive vs. 12v waterpump. I think it should be possible to make that test stationary. Watercooling is really difficult to handle because of the height..only 10mm...
by fabianpusch
Oct 05 2019 5:30am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

So the FETS are going too hot, sorry missed that...
by fabianpusch
Oct 05 2019 5:29am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 755
Views: 192176

Re: Electric Surf Board

Hi Chris,
No it is a 14S1P configuration.
The cells are KOKAM cells, each cell 53Ah.
The caps are okay, the internal temperature of the MGM says to hot...and then the power is automatically reduced.
How did you solve the cooling of the capacitors, sounds really interesting to me.