Remember to loctite your bolts like i showed you!
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What makes a good thermal pad that also has some good stick to it?
Iâm trying to stick the maker-x dual esc to the inside of a bigben fibreglass enclosure.
I know itâs not much better, but should provide some thermal mass instead of cooking there inside and hanging from a velcro patch.
The enclosure is sealed, so no dust will make itâs way in anytime soon.
Iâd say get some double-sided VHB tape from 3M and a thermal pad of the same thickness, and use a couple pieces of the VHB around the edges to hold the ESC to the enclosure with the thermal pad in the middle.
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It just so happens that i have double sided foam tape already and a thermal pad of unknown thickness on the way.
At the risk of making a mess, do you think adding cpu thermal paste to the heatsink will make any difference? Also, would the adhesive resist both temperature (~60°C) and vibrations (london roads⌠terrible)?
It depends on the tape. 3M VHB is ridiculously strong and tenacious.
Not that much? The way to get good thermal performance is to have as much clamping pressure as reasonably possible - hence the tapes of equal thickness. You donât want the VHB thicker than the thermal pad because that would leave an air gap, and you donât want the thermal pad thicker than the VHB because then the VHB wonât stick.
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Do you think motor mount adapters made to fit in the shoulder bolts of SR truckz would work for these?
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Unlikely
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First question is what is the tool called to pry open these collar type things on motors. Second where can I by extra of these? I have 8mm shaft motors but I think these clamp on to a part that is more like 9mm or 10mm.
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Snap ring pliers. Can get them at any auto parts store, harbor freight, or other tool store. You get what you pay for with snap ring pliers. Tips break on cheap ones.
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circlip tool
https://www.amazon.com/External-Circlip-Retaining-Shaft-Rings/dp/B013G215SO/ref=sr_1_7
https://www.amazon.com/MroMax-Stainless-External-Circlip-Retaining/dp/B07YBQXK8P/ref=sr_1_18_sspa
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Get 8mm ones. The groove cut into the shaft will be closer 7mm than 8mm so an 8mm one will fit perfectly. It will be tight af, but thatâs the point
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busy now. drive by answer. I watched the first vesc reconfig video. didnât see anything done wrong.
Iâm curious if your original config just had higher temperature cutoffs for the motors.
it would be good if you could get real time telemetry from a bluetooth module, and determine for certain which throttling youâre experiencing. ESC/Mosfet temp, motor temp or current limits.
I hesitate to say this, but if youâre careful as a temporary test you could set your motor temp cutoff start up to 100c and motor temp cutoff end to say 110c and see if that affects your throttling. if you werenât throwing faults you werenât hitting 100c. ( Iâm assuming youâre set to 85c/100c now. ) so this will confirm itâs motor temp throttling youâre hitting or not.
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@BigBen might have some or @370HSSV possibly.
You could also check with @Sender although not sure he has just the enclosure.
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I just got launched from my board that was running a Unity. I was cruising at about 25mph and then the brakes slammed on. There were no shorts on the phase wires and the Unity still works. What should I investigate in order to find out what caused this? Can overheating of the Unity or motors cause this?
Also, is 85A for battery max too high? Iâm running a 12s8p made with 30Qs so if I remember correctly, the battery can give 120A continous. Just not sure what the Unity can handle.
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I am experianceing same thing with dual focbox setup ive also had it pin the throttle for a short while god for bid i was bombing a hill
ur prob right as the newer ones run slight colder and have 100c cut off id think so it would only make sence for the old motors to run hotter as they clock the same
ill set the start at 95 and the cut off at 110c
110°C is a tad high
ill do start at 95 and end at 105