Tail Motor Heatsink
Everyone knows tail motors on R/C helicopters burn out too quick for the pocket to recover, burning them in helps but a lot of the damage is done by the great heat it runs under. The cooler I've seen for the cp2 didn't appeal to me - limited contact area, big chunky fins, I didn't think it was the best design, so here's mine :)
Its a simple mod using copper desolder braiding to quickly remove the heat from the little engine. It has tails coming off the back to dissipate the heat as quickly as possible to the surrounds.
This is prototype 1 but its seems to be working very well so might leave it at that. The motor is no longer too hot to touch so the heatsink is working and working well, whether it prolongs motor life we'll just have to wait and see.
Tools
- Desolder braid
- Super glue
- Scissors
Simply cut strips of braid to run the length of the motor plus enough to overhang ( I over hung mine by about half
again - I thought any more might flap around and touch the contacts). Glue in place around the motor, I covered the top and bottom curved surfaces with 5 pieces on each.
I was tempted to us some leftover cpu mounting thermal compound I had and rub it into the braiding but since I did it I've not yet seen any excessive temperatures from the motor so haven't bothered. You could also get away with shorter tails from the braid by simply "bushing" it out at the ends.
This is a mod in its early days but initial results are very promising, if anyone else attempts it please leave a comment in the forums with any other ideas to make it better. Thanks
