Slotting a brake rotor on my JMD-15 mill/drill retrofitted to CNC. Only have 8″ Y travel so I had to use a dividing head and rotate the rotor instead of letting the machine just cut all 8 slots.
Video Rating: 5 / 5
Posted by Admin in Video Slots
Slotting a brake rotor on my JMD-15 mill/drill retrofitted to CNC. Only have 8″ Y travel so I had to use a dividing head and rotate the rotor instead of letting the machine just cut all 8 slots.
Video Rating: 5 / 5
Notice how thick the rotor cheeks are. Looks like the Raybestos Advanced Technology line. Unfortunately most of the pre-slotted rotors (EBC, etc) are a few pounds lighter, not as thick, and have fewer vanes.
@sweetlikeADAM Look at my other vid “Slotted a brake rotor on a cnc mill” and you can see it at a better angle.
It may just be the camera angle, but it doesn’t look like your slots are very parallel.
@sk8wnec I was thinking the same thing!
@reaperwayne I’m a self taught hobbiest
very nice do you do this as a job or are you a self taught hobbyest ? wish i could do this stuff
@sk8wnec Servos are the way to go but they are expensive. That’s why I used steppers, I have less than $400.00 in the control system motors, electronics, ect… They are good for hobby but can lose steps if machining anything big.
Nice! I am not familiar with stepper motors. All our equipment uses ac servos with servo amps running through our own NC. The stuff is so expensive tho, when I make my own cnc table, I’ll prob have to piece it together slowly.
@sk8wnec I did the retrofit myself I used 3/4″ ballscrews for the X and Y and a pair of 1250oz steppers. For the Z I used a 700oz stepper with a 2 to 1 belt drive using the original gearing. For control I used the hobby cnc controller and an HP laptop running Mach3.
O I see. Ive never machined cast iron. Did you do the retrofit?
@sk8wnec Well it’s cast iron and cuts very well dry.
No cutting fluid?
Not yet but working on it. That will be a much slower proccess without coolant
Any videos of cross drilled ones?