# Heatsink for esc
**URL:** https://foil.zone/t/heatsink-for-esc/7924
**Category:** Electronics (ESC, remote, batteries)
**Created:** [May 21, 2020, 8:24am UTC](https://foil.zone/t/heatsink-for-esc/7924 "2020-05-21T08:24:22Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@Subusi](https://foil.zone/u/Subusi)
#### Post date: [May 21, 2020, 8:24am UTC](https://foil.zone/t/heatsink-for-esc/7924/1 "2020-05-21T08:24:22Z")
Someone in here told about a heatsink for the esc. It was 8cmxca. 16cm piece.
I can`t find the link. I only find 4cm wide.
Who can send me the correct link?
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### Author:  [@Marc87](https://foil.zone/u/Marc87)
#### Post date: [May 21, 2020, 9:08am UTC](https://foil.zone/t/heatsink-for-esc/7924/2 "2020-05-21T09:08:52Z")
> **[80x160x15mm Aluminum Water Cooling Block For CPU Semiconductor Cooling...](https://usa.banggood.com/80x160x15mm-Aluminum-Water-Cooling-Block-For-CPU-Semiconductor-Cooling-Radiator-Heatsink-p-1531780.html?imageAb=1&rmmds=search&cur_warehouse=CN&akmClientCountry=America&a=1699922405.5396&akmClientCountry=America)**
>
> Only US$22.97, buy best 80x160x15mm Aluminum Water Cooling Block For CPU Semiconductor Cooling Radiator Heatsink sale online store at wholesale price.
do you mean this one?
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### Author:  [@Subusi](https://foil.zone/u/Subusi)
#### Post date: [May 21, 2020, 7:08pm UTC](https://foil.zone/t/heatsink-for-esc/7924/3 "2020-05-21T19:08:07Z")
Yes. That’s great. By the way, the heatsink works great without a pump. Only the waterpressure is enough for cooling.
Thanks a lot 😀
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### Author:  [@SoEFoil](https://foil.zone/u/SoEFoil)
#### Post date: [May 21, 2020, 11:52pm UTC](https://foil.zone/t/heatsink-for-esc/7924/4 "2020-05-21T23:52:53Z")
Fora 75/300 VESC there is also this one:
> **[MACs 3rd and probably not the last build](https://foil.zone/t/macs-3rd-and-probably-not-the-last-build/6968/38)**
>
> Hey MAC, if I were you, I’d buy this alu cooling block for the VESC 75/300! It is the perfect size and you won’t have to worry about it leaking. For 35$, it is so worth it. I have it on my setup and it does the job perfectly! I even run it without...
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### Author:  [@Tim\_Kirkpatrick](https://foil.zone/u/Tim_Kirkpatrick)
#### Post date: [May 22, 2020, 12:21am UTC](https://foil.zone/t/heatsink-for-esc/7924/5 "2020-05-22T00:21:50Z")
I ended up using my battery box cover as a heat sink. Should absorb plenty of heat and the cover will be naturally cooled by water intermittently coming in contact with it. I feel that due to the large volume of the cover it should always maintain a cooler temperature than the ESC. I tried to test the setup today but when placing the motor and board into the water I was unable to receive any throttle response.
  
After assuming I had a leak somewhere and probably fried everything I picked the board out of the water and when trying the throttle it worked perfectly. THANK GOD!!! My receiver and transmitter are both the Nano X and have worked before. Strangest thing is that the motor would respond if i lifting the back end of the board out of the water roughly 8 inches, even with the foil and motor remaining submerged a foot or two. Once this is figured out I will have results on the effectiveness of the cover functioning as a heat sink
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### Author:  [@SoEFoil](https://foil.zone/u/SoEFoil)
#### Post date: [May 22, 2020, 1:00am UTC](https://foil.zone/t/heatsink-for-esc/7924/6 "2020-05-22T01:00:33Z")
> [@Tim\_Kirkpatrick](#):
>
> o test the setup today but when placing the motor and board into the water I was unable to receive any throttle response.
Seems that your very nice box acts as a Faraday cage and cuts the radio signal between remote and receiver. An antenna extension might solve the issue :
[Question about extending Maytech receiver antenna - Electronics (ESC, remote, batteries) - FOIL.zone](https://efoil.builders/t/question-about-extending-maytech-receiver-antenna/7111?u=soefoil)
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### Author:  [@Tim\_Kirkpatrick](https://foil.zone/u/Tim_Kirkpatrick)
#### Post date: [May 22, 2020, 3:18am UTC](https://foil.zone/t/heatsink-for-esc/7924/7 "2020-05-22T03:18:49Z")
I appreciate the link and will read more into it. But that would explain the sudden change in reception while maintaining all materials & hardware other than the box. Just seemed strange to go from excellent reception to absolutely no reception when introducing water. I guess water is an excellent insulator