CNC Brushless Motor DC Spindle Kit 24V 12000rpm with Drive Board & Collet Holder Installed, Perfect for 3018 Series CNC Machine

I initially upgraded to the "20,000 RPM" brush motor which was indeed faster, however it alike the OE motor would be noisy and cause some random chatter in my bit that would translate into inaccurate isolation trace milling.After some research I tried this brushless upgrade.So far it seems to be holding more precision in my cuts and the recused noise level is night and day.

The one I got had .002" of runout. That's huge if you are using a fine bit. Sent mine back as unusable.

The motor is fairly quiet by itself, but once the collet nut and collet are installed, it vibrates far more than the stock 775 motor and becomes noisier. I touched a tool to the round collet nut while it was spinning and the tool kept bouncing off violently, showing how badly it was vibrating. It does have a higher RPM than the stock motor but the high vibration and runout are not worth it.

Received and tested on 3018 pro clone. Works as described, but with quite a few caveats that make it not really an improvement over the stock DC spindle.Firstly runout is not great, measures 0.0015" on ER11 inner taper and outer diameter, where as the stock DC is actually better at 0.001"! On a 1/8" tool this would enlarge to more than 0.005". Therefore noise wise also not much improvement, maybe slightly quieter but I suspect that's partially because the lack of a powerful cooling fan (this thing gets warm when running at full speed).Secondly, the driver and the way it's supposed to be connected is somewhat flawed. The seller recommends connecting 24V input to the driver to the "spindle" port on the GRBL board. However, the "spindle" port itself is a PWM-gated 24V signal with a low-side MOSFET, and this means that whenever you're not running full spindle speed, the brushless driver board (ESC) is 1) NOT GROUNDED and 2) being powered by a PWM wave, NOT 24V DC. To me this seems a serious flaw and potential hazard. This probably also limits the lowest voltage/speed one could run the motor.I'll keep it for another purpose (perhaps make a small hand tool of some sort), but I'm getting a better 400W BLDC spindle instead of this for my cnc.

I've had this motor for a couple months now. It's handled everything I've thrown at it. I frequently use 1/4" ibit for roughing pass and it does just fine.

This is not compatible with the 3018 ver2. After talking with support, they informed me I'd have to solder on the back after buying more adapters...

The spindle is much more stiff than the stock motor. Cuts down on chatter. Also more powerful. Holds speed under load.Needed a few layers of aluminum tape around the body to get the clamp to tightenI powered it with another 24v psu and connected gnd and pwm to the cnc controller. The other 2 control wires were unused.

The motor has so much vibration under load in the 3018 prover that it is unusable. With the vibration the cuts are not clean. They make it sound good to bad it doesn't work.