It’s only one of the focboxes that fried.
When it broke the motor was twitching and it occurred during acceleration after a downhill with braking.
The owner told me he saw flames and smoke from the board so he immediately stopped.
What can cause this failure? My first theory is motor short?
Also worth mentioning is that this setup has been flawless for the last 1000km with no problem what so ever.
Thats a bad one certainly. I’ve fried many a vesc but not to that extent. That definitely looks like a short to do that much damage. Don’t think over voltage could cause that devastation.
Dude! Crazy! I just had this randomly happen to me on two different builds in the same week that were otherwise running fine for the last 6 months plus. Didn’t change anything and all of a sudden after breaking downhill one day my power/breaking was cut in half on my R2 and realized one of my motors wasn’t spinning only to get home and have one of the same pieces on my focbox blown out. Ride this board daily since October. Luckily enertion was good and got me a new focbox within a week, only to have the same thing happen today and now I have to hit them up again. No issues before this happened and no changes on anything.
Got the new TB DD and it’s fried 2 focboxes in the last couple of weeks, both on initial test runs and I can’t figure out why… VESC(s) showing no sign of damage at all, no red light, just dim blue… They will not connect anymore to VESC of BLDC and I’ve tried everything… using the same set up from a prior DIY set up I had so I know it was working fine for close to a year. Switch to the DD’s, passed motor detection with ack’s firmware no problem and motors sounded great, 5 mins into first test run not even going above 60-70% throttle and one motor goes out with focbox fried and not connecting anymore to either tool… any clue why this could happen? The same motor took out both focboxes, the other focbox is fine and still is and it’s my oldest one… running 10s4p brand new R2 spare battery, loopkey, focboxes with TB dd’s and 110’s on the new EVO deck and settings were conservative at 60, -40, 25, -10. I reached out to dexter too already and am thinking something is up with the motor cause everything else is fine. Interested to see where this goes. Sorry for the long post, super annoyed and frustrated. Still haven’t even got to take the DD’s out for a real ride yet after almost a month of having them! FML. Watching this…
The latest on early April. I don’t remember. Opened from a box, connected, installed latest firmware, made 3 meters
Returned to my Maytech Vescs and happy with it
I was on @Ackmaniac and always use his but this is the first time I had an issue. The other ones that blew didn’t blow mosfets and I’m not sure what’s wrong with them. One gets a dim blue light and won’t connect and can’t flash anything on it, one says DRV but not the code that everyone usually gets just DRV with no numbers after, the other just doesn’t respond…
Returned to my Maytech Vescs and happy with it