If you have a good heatsink on the top and bottom of the FETS would you still need to remove the heatshrink?
Iād say no. You already solved a big part of the problem. I would be a little worried about the drv though. If it gets cooked youāre dead. Then againā¦ I may be too cautious just because I run maytechs xD
So do I need to heatsink the drv as well? Seems like thatās what everybody burnsā¦not the mosfets.
AFAIK there is no way you can put a heatsink on the drv. Only on the fets
WRONG. my heatsink cools the fets and the drv. itās a bit ghetto but just find the thickest thermal pads you can find and stack until they contact the drv and heatsink. it helps a crazy amount
also about this heatshrink thingā¦ i donāt think thatās trueā¦ i rode both my vescs with heatshrink without an issue. why would the manufacturer spend the extra $$ if it negatively effected the performance? if youāre pushing your vescs so hard that heatshrink becomes a problem, you need to change your settingsā¦
Well, thatās one way to do itā¦
About thatā¦ Iād rather take the heatshrink off and not be thrown off my board because of a piece of plastic than keeping it on and faceplanting thank you very much.
Maytech vescs make you paranoid(in every positive sense of the word).
if the vesc overheats it doesnāt slam the brakes. iāve experiences it. it thermal throttles just like a computer. it will not push itself to death, unless something in your setup is wrong.
Same here. Iāve had some weird moments when I had cutouts and such. But those issues were non vesc related. There is a common misconception that maytechs are so bad you should never go near them. I say it depends on the person himself. If you respect your hardware and treat it like you do there is no room for failure. Same goes for batteries. Especially lipoās.
I have a maytech vesc and itās been working great. I had a problem in the beginning, I was having intermittent cut out problems. It powered up normally but after I was rolling it would start stuttering The problem was that the receiver was too close to the vesc. Itās now located as far as the receiver cable will allow. Itās working great now, no probs. This is just my 2 cents
Same here.
Iāve not used my board for about two weeks. Recently I started boarding again and was having cut outs. I moved the receiver around and it got a little better. Before this the receiver was in the same place and I had zero problems. After a few days no more jittering/stuttering at speed. Guess it was just a little rusty.
So, yeahā¦ this Maytech makes no sense. Acts like a loose connection. Intermittent issues of booting up correctly (blue and a green when signal detected) and not booting up and displaying blue and red light side by side. LED battery display works and shows % correctly. All voltages are good. Its like it just sometimes kicks in and sometimes wonāt. Thing thats so weird is that when it finally works (after 15min of on/off, rotating it, moving it away from other stuff. restarting controller, lying it on its back, on its frontā¦) when it works, it works for miles. No cut outs. No judders. No issues. Its like its totally a boot up software issue and when it finally boots ok, its perfect.
So, feck it. I need a Focbox. Why on earth are they sooooooo expensive!?
Does this also happen when you have no receiver connected?
yeah, same with no receiver
Hmmā¦ My vesc was having cutouts and jittering at high speed. Turned out to be a receiver problem. Seems to me youāve got a bad batch of vesc. Maybe itās something that you did recently that triggered it? My jittering and cogging problem began when i disconnected the motor for service. My maytech has been running strong for about a year. Nothing major I canāt fix. (Iām lucky I know hehe)
Yeah, id say this one is fecked. Its doesnt make any sense and intermittent stuff drives me mad. Lifes too short for this farting around.
You mean āāFocāing aroundāā.
hahahahahaha yes indeed