I recently purchased a CNC kit off of ebay, it should be delivered tomorrow sometime. I was wondering if anyone see's anything missing (not counting the lathe, box to wire them in etc) in this kit to make a 2 axis CNC lathe. I dont see any "driver boards" like Keling has. But just let me know, and sorry if this is the wrong thread.
Holding torque: 14.5Kg-cm 287oz-in (For Bipolar connecting, the holding torque is 287oz-in)
Rotor inertia: 480 g-cm2
Detent torque: 0.68 kg-cm
Number of wire leads: 6
Weight: 2.20lb (1.0 kg)
2, 3 Axis Driver Board
Products Features ：
1：The maximum 3.5A drive current to a maximum 86 stepper motor drives, more powerful
2：1-16 sub-setting, higher accuracy, smoother operation
3：Overload over-current over-temperature protection, full protection of your computer and peripheral equipment
4：4 files current settings can be set according to the user the actual current requirement
5：Full closed-type optical isolation to protect the user's computer and equipment
6：Professional design, two-stage signal processing, super anti-jamming
7: Bipolar constant current chopper drive motor low-speed non-creeping phenomenon, noise, non-resonant region。
8: 2-way output control, scalable fifth axis or 2-way control of external equipment.
9: Four input control, you can set limit, emergency stop, which is divided into pairs of knives.
Please note the following before the test items
1， To determine the size of the supply voltage and current
2， Determine the stepper motor power and current (model)
3， Determine the stepper motor wiring
4， Power Please take 12 ~ 36V 8A (stepper motor in accordance with the work of current matching) The above switching power supply, I received a map indicating the power input interface。
12V power output for a 12V cooling fan to pick up where。
The definition of 1-PIN 25 of Parallel Interface is described as follows：
Expand output 1
The definition of 1-PIN15 of Manual Interface is described as follow（Click the image to upper right for the P1 left P15）
While you can not always trust the specifications that they give in some of those auctions, it looks like the motors included in the kit are not a great match for the driver board or the power supply, but you may still be able to get them to work together after a fashion. For example, the motors are apparently rated at 1.0 A per phase, while the description of the board seems to specify that the board is rated for higher current motors (you may be able to select a more appropriate, lower motor current by setting the DIP switches to the lowest current-set value). The motor winding inductance is fairly high, which means that in order to get the optimal speed from those motors you would need to use a much higher voltage than 24 volts (for example, over 130 volts, if I have done the math correctly, but the TB6560 driver board probably shouldn't be used with much more than 30 or 35 volts). The motors have 6 wires, but the driver board only supports 4-wire motors, and so you will have to "tape off" two of the wires in order to connect it (there are two different ways that you could do that).
Too late for you, but for others reading this thread, I have had several driver boards with this chip and all but on has failed. If you go with boards with this chip, buy one from a reputable dealer local to you. Generally, they will stand behind their products and help you with any problems you may have. You take your chances importing any of the Chinese products. Always a hit-or-miss.
I get mine from HubbardCNC on Ebay. He tests each board before he ships them, with a video showing that it works, plus a file for Mach2/3 with all the settings for the driver. Still, I got one that was defective and he replaced it. Can't get better service than that.
Just an F.Y.I.