my team has been having problems with motors breaking. the motors would seemingly completely turn off. the port turns dark (not blinking, like when a port is blown). this has happened on two different robots and two brains. the brain doesn’t recognize the motor at all. this has happened three times,…

we have the antistatic tiles, but we don’t have the antistatic spray on these two robots. From what you’re saying, I’m guessing the motor port would have blown, am I correct? because all the electronics inside all three motors seemed to work fine. The motor port was dark, not blinking, and the bra…

Is there anything I’m doing wrong, or do motors themselves break from time to time like brain ports?

Funny thing we just experienced the same exact issue on our first build of the season but were reluctant to post/talk about it because it invariably turns into a naggy “stop shuffling your socked feet around / this is real life get used to adversity / your team should learn how to build better / go …

Weird. I broke 2 motors on one brain (these motors never worked from the start), and on our second robot with a new brain, I broke a third motor. Switching brains didn’t work for me🤷🏼♂️.

What are you using the motors for?

[image] Static electricity: quantitative measurement & prevention VEX V5 Technical Support There are many threads on static issues: complaints, notes on static spray, anti static tiles, dead motors, dead brain ports, ESD brain protection, and so on. What I have NOT seen (…

[image] turbodog: highly recommend a metal shaft collar on your shafts be touching the metal frame to conduct static buildup into the frame instead of allowing the shaft to send it back into the motor I would warn against this generally. It can both raise the friction on the shaft and start t…

I gave the short version. If you go through the whole thread, it’s mentioned to leave a gap the thickness of a sheet of paper or fingernail. The shaft’s normal movement will cause enough contact to happen w/o friction being an issue. Additionally… if you use grounding wires, you must get through the…

Thank you for pointing out that the wires must be grounded thoroughly. I had neglected to mention that. I maintain my opinion about avoiding metal on metal contact in rotational joints as much as possible, but if it works for you, go right ahead. I would encourage people to use wires for grounding r…

[image] turbodog: highly recommend a metal shaft collar on your shafts be touching the metal frame to conduct static buildup into the frame instead of allowing the shaft to send it back into the motor I’m curious as to what path static could take in its way into the motor from a shaft that wo…

Broken motors

VEX V5 Technical Support

turbodog September 25, 2022, 3:56pm 17

Short version:

static spray works
highly recommend a metal shaft collar on your shafts be touching the metal frame to conduct static buildup into the frame instead of allowing the shaft to send it back into the motor