Problem with new efoil build with Flipsky 65161, watercooled 75200 and 12S6P Molicel P42A battery. After running FOC setup and increasing motor and max amps I have plenty of power and speed for getting onto foil but as soon as I get onto foil the pitch of the motor changes and then motor stops and drops me off of foil. Any ideas on what VESC setting am I missing here that needs to be changed.
Make sure to watch the VESC setup video from Ludwig on YouTube! Could be that your (absolute max) current is set too low.
https://youtu.be/QaVPISP8BF4?si=w1yyNuhWQEazAJNB
Have watched many times, had motor set to 155 and max set to 225.
Unusual problem. Most posts are about not being able to get up foiling.
Maybe ERPM limit??? WAGđ
Is you motor running through a bms or direct through to the batteries? BMS could do this.
After you go off foil does it stay dead or can you start again?
1 Like
Direct, no BMS. Yes can restart and get full speed.
My last ESC setup I used ChatGpt, give it all the details and go through the settings in VESC Tool.
What type of details did you give ChatGpt and how well did it work after using suggested setting? I saw your post where you didnât feel the ERPM setting wasnât quite right.
From my experiences VESC Tool and Flipsky ESCs donât get on well together in that the numbers populated by the wizard donât actually mean what is entered, so they need to be entered manually, even if it is the same value.
With ChatGpt I started a new chat, entered what I was doing and the components. DONâT upload any images as ChatGpt recommends as your free account will be timed out very quickly.
Before I did anything, I asked ChatGpt, went through the values and got recommendations. I learnt a lot and configured nicely. As I mentioned I went in circles trying to set duty cycle current limit, which couldnât be done, and the initial ERPM limit to limit maximum speed was ridiculously low. So stated previous remote throttle position and max amps for previous speed and it adjusted, and it was too high due to using my information.
It is important to argue with ChatGpt, introducing real world experiences and observations, and ask to include all real world factors. It also never volunteers anything important.
I only got one run with my setup before failure due to water ingress, but it ran great although the ERPM limit was too high, but ChatGpt gave me details to help in that to adjust roughly 2k per km/h for change.
When I get it running again I will log the runs and upload the files to ChatGpt for an appraisal and recommendations on the build.
For every beginner that posts here the standard response should be to use ChatGpt for the usual beginner questions and VESC Tool setup, then confirm through previous posts, or post for complex application.
Is it possible the vesc is getting overheated? What sort of cooling do you have?
Forced fresh water cooling. Tried chatGPT, difficult to get it to come up with quality answers, maybe itâs the way I questioning it or that there is only a lot of random information for it to source on specific configs for certain combinations of battery, esc, motor and prop.
Not from my experience. Run the wizard specifying the correct motor type and then change a few values in limits and your done. I have never seen a post other than yours that indicates a need to go into every parameter and enter it manually.
Think about it - why would there be a âwizardâ if you have to enter manually.
@ludwig_bre has posted an excellent tutorial and Flipsky has several blog posts covering their product.
To get to the bottom of this I suggest running vesctool logging during a run. Also post you setup from vesctool maybe we can see something. It is odd you have lots of power to get on foil then it dies. Usually its not enough to foil as the most common newbie problem to overcome,
1 Like
There was a post with numerous comments on this issue, I didnât just make it up.
Other posts mentioned the same thing. I didnât mean every parameter, but watts and ERPM seem to, sometimes.
If you have had no issues that is good.