So my single motor gets very hot and surpasses the set temp limit and causes cutouts. to avoid this I simply unplugged the sensors and itās been fine but now I have to deal with sensorless operation.
I donāt think itās an issue, but would re-attaching the sensors and setting the temp limit to 999c cause problems? The way I see it is if itran fine unsensored at high temp then it would run fine with sensors at high temp.
When you unplugged you sensors, you unplugged the temperature sensor. So you could be demagnetizing your magnets if they get too hot. I donāt know though how hot itās getting or what magnets you have.
You can plug the sensors back in and still run sensorless, except with a temperature sensor.
It getās extremely hot but I have not noticed much power loss from demagnetization. Itās the ābattle hardenedā maytech 6880 so I hope there wouldnāt be an issue with magnets falling off or anything wonky. Time will tell.
Id just cut the temp sensor lead (or remove it from the JST connector), I rarely run them.
How do you find the motor beta value for the temp sensors?
Thanks @b264ā¦ Very detailed answer.
You mentioned I should go with 140kv if I run sensored and with big wheels. Could you explain that for me as I would think bigger wheels would require bigger Kv?
Thank you very much, very appreciated
@RAZerBlade Bigger wheels will need more torque to move at the same speeds. Less kv=more torque
Thank you @Flasher! I will need to read more about KV and itĀ“s effect on performance. Will go through the search function and come back in some days. (if anyone has a great link on that topic would highly appreciate that).
Best regards
If you havenāt, maybe start here?
Thereās a section about kv ratings
So I bought these cheap velcro cinch straps to hold my enclosure temporarily and a couple of the loops have broken already from riding. I JB welded one of the broken loops already and will test it later to see if it worked or not.
Just replace the plastic loops with good zip ties lol.
Likely the jb weld will hold and it will just brake where the jbweld ends.
OMG zip ties thatās a good idea. Iām gonna rename this fucker Zipper cause itās made out of zipties
JB Weld is more like concrete, itās great under compression but not as good under tension. If you used zip-ties as suggested above itād be better I think
If you REALLY need it to hold, you can get U-bolts at Home Depot for a buck each. I use them for broken tow straps occasionally
just curious - what types of adhesive work well against tensile forces?
Not sure but sometimes I put JB Weld on cloth or string or other things
Steel and bolts are great for tensile, @ZachTetraās idea is gold
This is probably the best, hella cheap and low profile. Once its secure you can just dab some loctite on the threads so it stays forever
https://www.homedepot.com/p/National-Hardware-3-16-in-Zinc-Plated-Quick-Link-3150BC-3-16-QUICK-LINK/204606887?MERCH=REC--NavPLPHorizontal1_rr--NA--204606887--N
Iām a little slow sometimes; Iām not sure Iām seeing how to implement these on the plastic loops? wouldnāt I need to effectively replace the entire loop with two of those u-bolts with something connecting them on the top and bottom to make an entirely new metal loop?
Anywhere you see a plastic loop, cut it and put a metal chain connector in its place. They have the same size and shape, but easily 100x the strength
Edit: its just a 1 to 1 replacement, go to your hardware store and look for something similar that has the same interior length (long straight sections) as the width of the strap
cool, Iāve got some ideas now on how to make a new loop, thanks!
