Thread: Closed Loop Stepper Motors

Hi Steve,
The stepper motor has an encoder mounted on the back end of the stepper and they need a driver board to keep track of postioning. For my money I would be looking at servo motors and drivers which are a better system for a closed loop design.

Hi Steve
I am using "Leadshine Easy Servos" which are steppers with encoders, they use their own driver, 3 of mine are 8nm the other two are smaller, they have never missed a step or faulted and are quite a bit cheaper than servos.
I purchased them from Ocean Controls in Melbourne.

Originally Posted by rodm

Hi Steve,
The stepper motor has an encoder mounted on the back end of the stepper and they need a driver board to keep track of positioning. For my money I would be looking at servo motors and drivers which are a better system for a closed loop design.

Thanks Rod,
Any difference between AC and DC servos, as far as performance goes? Are all DC servo motors brushed ?( All I have seen are )

Originally Posted by Lucky Phil

Hi Steve
I am using "Leadshine Easy Servos" which are steppers with encoders, they use their own driver, 3 of mine are 8nm the other two are smaller, they have never missed a step or faulted and are quite a bit cheaper than servos.
I purchased them from Ocean Controls in Melbourne.

Thanks Phil,
Didn't realise Ocean Controls sold them. I've had a look.
8 Nm? That is a serious motor. Your machine is quite large?

Steve

Originally Posted by Sterob

Thanks Phil,
Didn't realise Ocean Controls sold them. I've had a look.
8 Nm? That is a serious motor. Your machine is quite large?

Steve

Hi Steve
my machine's gantry weighs in at about 110kg so that's why I went with 8nm motors, also it uses one on each side.
Philip

Are they easy to setup compared to a regular stepper motor? Do they work with mach3?

Originally Posted by Com_VC

Are they easy to setup compared to a regular stepper motor? Do they work with mach3?

Hi Com_VC
All I did with mine was plug them in. The encoder wires go straight to the controller and wire the breakout board the same as any others, there is tuning software available but I haven't used it as I think the motors are fine as they are.

There is no reason that Mach3 wouldn't work as the breakout board is the interface that controls them.

Philip

Clearpath servo Demo

https://www.youtube.com/watch?v=3TzNQnSKO_8&t=605s

I'm impressed. Not for everyone, I guess , as they are a bit spendy, but I am interested to learn more.
No distributors, which will make postage dearer.

Anybody got any ? Do you like them?

Steve

I’ve been using closed loop steppers from a Chinese supplier called cymotor. Just ordered my second lot. 12nm nema 34 for a Bridgeport CNC conversion.


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Thanks for the heads up. I'll check them out.