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Machining & Fabrication work

I do milling, machining and fabrication for my own aircraft & cars, and am happy to machine or fabricate components if I am able. I try to keep the costs down as much as possible, but custom machining work does take time! I can machine small parts out of Brass, Aluminum, Nylon, Acetal, Teflon, and most other plastics.

The EDF55 & 64 fan housings are made to fit Mabuchi 370 brushed motors, the hub hole in the centre of the mounting flange is too small for most brushless motors with hub flanges like the Hyperion Y22s series, and is not so easy to open out. I am happy to open this hole out to suit 9mm bearing hubs before shipping the fan unit out, so please let me know if you require this! (there is no charge)

HEATSINKS

I regularly machine off the mounting flanges of heat sinks so they can be used inside ducted fans with minimal interference to the airflow. Yes you can hack them off and file down the stubs, but it does look far neater and more professional to machine them off! I can also mill a ventilation slot for use with brushed motors, this promotes cross ventilation of the case usually blocked by use of a heatsink. Two versions of the 300 & 400 size heat sinks are:

●Heatsinks with fins removed for brushless EDF setups

●Heatsinks with fins removed and slotted for correct case ventilation to suit brushed 300 & 400 size motors

SHAFT ADAPTERS

When it comes to ducted fan shaft adapters most are threaded all the way to the end and the rotor slides on, this makes it difficult to tighten many adapters without having to hold the shaft as the shaft will turn with the nut if you hold the rotor. Holding the shaft you end up with burred threads making it almost impossible to remove the nut later on!

Whenever new stock of fans arrives at Extreme RC we take all the adapters into our machine shop and turn the shafts down so that you can easily grip the adapter without damaging the thread.

Some people drill a hole through the adapter shaft and insert a hex key to hold the shaft still, this method stil burrs the threads making it difficult to remove the nut. Our method ensures no issue with fitting and removal of any of our Wemotec or ERC fans.

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