Adding more fans will require more power from the power supply. Each fan should have the amps that the fan draws. Add the total amps from the three fans and add one amp for the pump and you will have the total power requirement. The 12V 2amp power supply that accompanies the spindle cooling kit will probably be insufficient for the additional two fans.

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[772] Can I add 3 fans and a bigger radiator to this with the 12vdc power supply

We recommend using an extension cord, or some other 3 conductor power cable, that is at least 16 AWG. Cut the end of the cable off, and then strip to expose the three wires, typically white, black and green. Connect the black to L (called Live), white no N (called Nuetral), and green to the 3rd place from the right, that has the three line symbol for Ground. Our supply has a red switch on the side. When looking at the terminals, it will be on the right hand side of the supply. make sure that you have selected the proper input voltage with this switch. Either 220v (used mainly overseas) or 115V (for typical North American power)

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I bought a 36V power supply through you, and when I connected it to the wall outlet, it measures in the mid to high 70 Volt range. I then bought one on-line, and got the same result. When I test the line voltage, it reads 111V, so I believe the multimeter is working properly. What am I doing wrong?

I would recommend using a separate 24VDC power supply for the controller. The 24VDC that is connected to the controller is used for delicate input signals and output signals that control external devices. To keep interference and possible current and voltage fluctuations at a minimum due to the motor load, a separate power supply would be best.

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[575] Can the 24VDC supply used for the interface board be the same supply used for stepper drivers, or do you need separate power supplies? If not, does GND and DCM need to be isolated?

Can you test the output of the 5V DC adapter to check the output voltage?

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The 5VDC voltage was generated by a PC ATX power supply and was measured (5.0VDC) just before connecting it to the controller PCB. I also verified polarity prior to powering up.

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Please call us to initiate a replacement of the USB interface. We would also like the existing USB interface to be return so that we can investigate the cause of this failure.

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I connected 5Vdc power to the alternet connector of the USB Breakoutboard with the proper jumper setting and the board fried. What did I do wrong?

In our 3-Axis electronics kit, the power supply's provided are capable of both 110V-220V. You have the capability to switch between both in case you might decide to run 220v in the near future or will relocate where 110v is being used.

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Connect spindle to the board



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In the 3 Axis Electronics Combo, what is the AC input of the power supply (110v or 220v??). is it possible to specify a certain voltage when ordering?

If your laser machine needs to reflect off of three mirrors before it finally passes the focal lens, then I would recommend realigning the laser.

You might also want to see if the nozzle is hot. If so, then the laser energy is hitting some of the nozzle body and not all of the laser energy is exiting the small aperture of the nozzle. To determine if this is the cause, remove the nozzle and try the operation again to see if you have better results. If the results are better with the nozzle off, then realign the mirrors. If you are still having difficulty getting the laser energy to exit the nozzle, increase the diameter of the nozzle aperture.

If you are still having poor results, take a look at the focal lens and the mirrors for any debris. An unclean lens and mirrors are a common cause of poor lasing performance.

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Is this a problem with the tube or the power supply? The tube is illuminated but I don't get clear firing to the piece. This is a rastering work and I get faint results and then it will be fine, then nothing. Tube changes from pink to solid line purple even when vectoring or manually holding the fire button. https://youtu.be/rX5xZoM6_bk

Absolutely, I can answer this type of question and anything other questions you may have with your new-to-you CNC router.

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[789] Can you help me with selecting a power supply ( and a few other components ) for the stepper motors that came with a homemade CNC Router I just purchased.

Did you connect the USB connector to the breakout board?

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YES I CONNECTED THE USB TO THE BREAKOUT BOARD

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I connected the electronics (for 2 x 4 feet) that I ordered from you. But how do I check if I connected all the wiring properly. There is neither any light on motor drivers nor on breakout board. And the motor shaft also does not move before and after the power supply is given.

Make sure to watch this video that I created to correctly connect a VFD to the Mach3 USB controller. Yes, the 10V terminal on this controller is an input. VFDs typically have a 10V output that can be connected to this terminal.

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The video is here:

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[575] I want to run a SAKO VFD SKI780 by means of this break out board. On https://www.youtube.com/watch?v=P6xxHj6qYSA is mentioned that the 10V terminal on the BOB is an input connection and that it ha to be connected with an external 10V supply source to obtain a 0-10V PWM signal on the AVI terminal of the BOB. I this correct?

You can control our 40W laser power supply (which controls the laser tube) with an Arduino, if that is your intention. The trigger for turning the laser on and off uses a 5V level. To control intensity, you can use the Arduino PWM output. If you want the Arduino to move the machine as well (providing pulse trains to each of the stepper motor drivers) then you will need to make sure you consider the processing speed of the Arduino so you will be able to run the stepper motors at the speed you need for the laser engraving/cutting.

Our laser controller do all of these functions. Here is a link to our laser control system:
https://www.buildyourcnc.com/item/Laser-Component-Laser-Control-System



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Thank you! I am building a 3 axis cnc/ engraver and I think this would be a good option as well as the router head and the 3d printing head. How heavy is the tube? I may mount it directly onto one of the axis of the machine to eliminate the need to line up all three axis, similar to what you have with your xl engraver.

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The tube isn't that heavy, but when filled with water, it can get up to a few pounds. The key is to use the axis moving the nozzle for engraving as this requires fast back and forth motion. The cutting is generally dependent on the axes moving from vector to vector at a relatively slow motion, so this is not a problem.

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I would like to build a low cost laser engraver/ cutter, can your 40w laser power supply be controlled with an arduino or is it only controlled by the controller sold here?

Are you using the control panel (front panel with the speed control knob known as he potentiometer)? Or are you attempting to use the computer to control the speed?

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I am using the control panel, however there is no knob on mine, just buttons.

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Hello, I bought your 110v 2.2kw spindle and vfd. When I turn it on it reaches the full 24000 rpm, but will not let me decrease the speed. How Can I fix this?

Yes, the 651 oz/in motor requires a driver that is compatible to the motors (the motor will draw 6 amps max and the driver paired with this motor will be able to allow for a 6 amp draw). I would also recommend a 36 volt power supply for better high velocity performance.

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I HAVE ONE OF YOUR SMALLER STEPPER MOTORS RUNNING MY X AXIS BRIDGE CRANE AND IF IT IS MOVED TO FAST THE MOTOR SOUNDS LIKE SKIPPING STEPS WILL 651OZ REQUIRE A DIFFERENT POWER SUPPLY CONTROLER?

For our parallel breakout board (https://www.buildyourcnc.com/item/electronicsAndMotors-parallel-breakout-relay#prettyPhoto/2/) the schematic will show the connections going from the BB to the drivers. The parallel breakout board uses the 25 pin parallel connection to communicate from the computer to drivers, and the USB is used to power the main-board itself, supplying 5V.

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I am wiring my breakout board and it has a USB port on it. Is the USB port there to supply the 5 volt power to it?

I am assuming that you are referring to the Mach3 USB controller.

Your understanding seems mostly correct, but it's important to clarify a few points regarding the 3D touch probe and the Mach3 USB Interface Board. The probe has three wires: 24V+, 24V-, and a signal wire. Here's how it typically works:

24V+ and 24V- Wires: These are for powering the probe. Make sure they are connected to the appropriate power supply.

Signal Wire: This wire sends the signal to the board when the probe is activated. In your case, it seems to be connected to pin 4.

Active Low Setting: If the probe is Normally Open (NO), when activated (i.e., when it touches the surface), it will complete the circuit. If you're using "active low NOT ticked," this means the board will interpret an open circuit (no contact) as an active signal. When the probe touches a surface and closes the circuit, the signal will stop.

It's crucial to ensure that the probe's voltage specifications match what the Mach3 USB Interface Board can handle. Since the board's inputs might not be designed for a 24V signal, using a voltage divider or an appropriate interface circuit to step down the voltage to a safe level for the board might be necessary.

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Hi. I have just purchared this board and will be using a 3d touch probe. The probe has 3 wires, 24v+, 24v- and a signal wire to the pin 4 (I think). The way I see it is that the probe is NO and the signal wire when activated will send a 24v+ signal to pin 4 (active low NOT ticked) activating the board. Would I be right in this understanding? Much apreciated.

We recommend our electronics combo for the scratch build kit, which you can find on our site here: https://buildyourcnc.com/item/electronicsAndMotors-3axis-425-elcombo. This is our standard general purpose 3 axis electronics system, and includes (3) NEMA 24 425 oz-in stepping motors, (3) Drivers (3.0Amp 24-40 Volts, with 1-1/64 microstepping), (1) 36v 8.8a Power Supply, (1) Interface Board either USB or Parallel. (The USB version requires PlanetCNC software; the parallel interface board gives you a variety of options, Mach3 being one popular choice.)

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I got the plans and hardware from you guys and im almost ready for the stepper motor part of this build. what size motors are good to use for this build? the size of cnc will be 2x4 when finish or what size will not work? thanks

The 12V power supply has 3 terminals for AC in: N, L and earth ground. The output of the 12V power supply has 2 DC + and - terminals. Cut the connectors off of the ends of the fan and pump wires. Strip the red and black wires of both units. The fan will connect to the 12V power supply red to the + and black to the -. The pump will connect in the same way, but the white is not connected.

If you have a pump that has a grey and black wire on the large connector, the grey is the 12VDC V+ wire and the black wire goes to the V-. The extra wire does not need to be connected.

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I purchased the spindle cooling kit with power supply. and was wondering if you have a diagram on installing or a video. thank you

All you need is a CNC controller like the following options:

https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

This controller is easy to connect using standard wire screw terminals and works with the mach3 control software.

https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach4-mach3-USB-ethernet-Board

This controller is a little bit more difficult to connect, but is a more feature-rich controller and will work with both mach3 and mach4 CNC control software titles.

Specifically, a CNC controller connects to the computer via a USB cable and connects to the motor drivers. These controllers also connect to the limit switches, spindle/router control, air/fluid/mist control, etc.

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Can you sell me a kit to control my motor from the pc? I already have a motor, driver and power supply.

The 12V power supply has 3 terminals for AC in: N, L and earth ground. The output of the 12V power supply has 2 DC + and - terminals. Cut the connectors off of the ends of the fan and pump wires. Strip the red and black wires of both units. The fan will connect to the 12V power supply red to the + and black to the -. The pump will connect in the same way, but the white is not connected.

If you have a pump that has a grey and black wire on the large connector, the grey is the 12VDC V+ wire and the black wire goes to the V-. The extra wire does not need to be connected.

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THE GANTRY MOUNTED SPINDLE WATER COOLER PUMP THAT I PURCHASED DOES NOT OPERATE NO MATTER HOW CONNECT THREE WIRES TO TWO WIRE POWER SUPPLY.

That depends on a few factors. In most cases, three 3.0 amp motors and drivers will not exceed 8.8 amps of available current. All of the motors would need to be at full torque to reach the 9 amps (3x3). This depends on the mechanical method you are using for each motor, and how you are using the machine. In most cases, only two motors are moving at a time (i.e. 3D carving where the X and Z are moving simultaneously and the y only moves to go to the next row). In traditional cutting profiles, only the x and y are moving simultaneously and the z-axis moves at the location it needs to start cutting the next layer.

With that said, it is ok to add an extra power supply if you feel you need more available current.

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[810] Is this a closed loop motor? What is the recommended driver and power supply for this stepper? Would you recommend using one power supply per motor pair or one power supply per motor?