Proxxon MF70 Motor Upgrade Kit

I used these to upgrade my Proxxon MF70 to brushless motor. This kit includes a part which is 6MM thic to mount the motor to MF70 body. Another 2 parts are the coupler to connect the motor to the spindle. But it's only the motor-side. Given that the motor speed of a brushless moter is very high and considering the durability of the parts. I made the center part of the coupler with aluminum, while the fans of the coupler was made with 3D printing. Also the motor mounting kit was made with alumin…

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