Cooling Duct for 775 Motor

thingiverse

WARNING: This is an ongoing project. A cooling duct for a 775 motor with heat sink is being showcased here. It's the final part of an ambitious project undertaken to boost my grandson's Power Wheels Quad, a radical overhaul from top to bottom. The new quad had overheating issues and fortunately I had installed a temperature monitor earlier. Heat sinks were purchased and advice was given to add a fan and duct to maximize the heat sink's potential. In the end, this duct wasn't used but it's being left for others. In my case, the 775 motors come equipped with their own internal fans and this duct would compete with them. It turns out that just passive cooling from the heat sinks was enough to solve the quad's overheating problems. The following components were utilized: - 775 motor - Heat sink (available at https://store.nextgenrobots.com/product/775cooler360) - 2" stainless hose clamp to hold duct and heat sink in place - 4 x 3mm bolts - 60mm PC cooling fan Printing details are as follows: - PETG with 5 perimeters, 20% fill - Clean up the 3mm threaded holes with a tap before use - Holes for the wires were drilled manually - The print is intentionally a very tight fit. There are chamfers to aid installation but it's still a challenge to get it on. Variations in the dimensions of 775 motor cans may affect the fitment so proceed with caution.