The blackTooth laser power supply will use 4 - #8 x 1" screws, and 4 - #8 nuts. As stated on step 10 here (https://buildyourcnc.com/blackToothLaserCutterAndEngraver.aspx#prettyPhoto/10/)

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I am building a blacktooth. I don't see in the instructions what screws are meant to fasten the power supply to the wood. The instructions show how to wire it but I don't see where it says which screws to use. I don't want to guess and end up being short later. Thanks. .

Many shielded cables come in various materials and designs, so having one with a copper mesh covering the inner insulator wire is no problem. We currently use a extension cord found locally at a hardware store and include one 18G wire for ground. So a specific shielded cable is not a required, unless being used next to specific and sensitive electronics that are extremely sensitive to noise and voltage interference than a shielded cable is required.

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I purchased a 2.2 spindle a while back and went to the electrical supply house to but shielded cable for the power run, I was on the web a while back and saw a picture of shielded cable that didn't look like what I had bought. should it have a copper like mesh wraped around the inner insulation. Thanks

The digital signal portion of the CO2 laser tube power supply has various terminals for signal power, signal gnd, laser intensity and engaging the laser (turning it on or off). The TL and TH are triggers to turn the laser power on or off. These may be labeled L or H on some laser power supplies. You can use either TL/L, or TH/H to control the laser.

If you use the TL or L terminal to control the laser:
If a low signal (gnd) is present at that terminal, the laser will turn on. If a high signal (5v) is present, the laser will turn off.

If you use the TH or H terminal to control the laser:
If a high signal (5v) is present at that terminal, the laser will turn on. If a low signal (gnd) is present, the laser will turn off.

You should first test the control signal from the interface with a multimeter to make sure the laser will be controlled correctly before powering the laser power supply

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On the blacktooth machine wiring diagram for parallel breakout a wire goes from 6 on the BOB to TL on the laser power supply. My power supply has an"H" followed by a "L". Which is correct? I've connected to the "L" but the laser appears always on.

Wiring diagrams for the Laser Power Supply will be mostly the same with the updated power supply. The main difference is the newer power supply contains a secondary green terminal block on the front of the power supply next where the hard leads are connected. This differs from the older power supply which had contact points on the back of the power supply. Please refer to the tutorials section for updated information and if you have specific questions please email techsupport@buildyourcnc.com

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I am assebling the Blacktooth CNC laser 20x24" with what appears to be an updated power supply. After refrencing the wiring diagram on line and the totorial, may I ask for an updated diagram or totorial, the current version do not appear to match match the configuration provided. I do not feel confidant in the educational guess, that I have. thanks

If your country requires 220 volt peripherals (water pump or air pump) for the blackTooth laser system, then we will either send the 220/240 volt equivalents, or we will have them drop shipped from another location in your country, or a country with compatible power requirements.

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What's the cure for 110 volt pumps (air and water) and a 110volt laser power supply, in a Blacktooth Kit sent to Australia, where 240 volts is pleasingly normal. The fan and other power supply are 220 volts.

There is some variation in the outward appearance of laser power supplies due to sourcing through different vendors. However, the basic wiring requirements are the same in each case. For the unit with integrated laser controller, follow the diagram found here: https://buildyourcnc.com/blackToothLaserCutterAndEngraver.aspx#prettyPhoto/0/. The terminals on the signal side will have a 6 connection terminal block -- these are the ones labeled 5V, IN, G, P (or WP), L (or TTL-L), and H (or TTL-H). The High Power side will have 3 inputs for AC power, one high voltage lead, and one return line. Connect these as shown in the diagram as well: the return line goes on the "front" (beam exit end) terminal of the laser tube, the high voltage lead goes to the "back" terminal of the tube, the FG terminal (or G) receives the earth ground wire of the AC power cable, and the two AC terminals receive the line and neutral wires of the AC power cable (it doesn't matter in this case which wire goes to which terminal).

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I purchased the blackTooth Laser Engraver with integrated Laser Control Unit and have been following your instructions. I noticed that the laser tube power supply is different that what is shown in your instructions. Do you have any better wiring guides that I can follow for the version that I received?

VCC is the same as 5v. I will clarify on the instructions.

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In the BlackTooth instruction the concluding sentence suggests connecting a wire from the right terminal of the pot to the VCC on the Laser Supply. There is no VCC on the power supply for the Laser that I can find. So, does this wire go to a different terminal on the power supply, or somewhere else where VCC exists, such as either stepper motor control?

Thanks for your interest in the 80 Watt Laser Tube Power Supply. We will start offering the 220 Volt version of these power supplies on September 23rd.

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I was looking for a MYJG80W power supply but I see you may not have the 220 volt version. Do you have these as yet and if not what can you advise on availability or where I may find one...Thanks

This would totally work for that application. This cable carrier is used for any object that needs to move and carries some electrical or tubing within it. This cable carrier is great for cable management where you want to make sure the wires and tubes are in a position that you set, not where the wires and tubing want to go.

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[311] I am looking to use this type of thing with a pipe for theater. Where the pipe can be lowered and it would have electrical and signal cable inside. Is this good for that or should I look at something else?

Hi, this BBB comes with a USB port and its cable to power it up. Once connected to the computer a led in the BBB will light up to show it has power.

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Breakout board I have does not have USB port for the 5v power. Does the parallel port supply the 5V power?

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Hi, I need assistance, the parallel breakout board I received looks different from the one on the video, does this one need a 5V supply? If so, where do I connect the positive and where do I connect the ground? Thanks for your help.

Stepper motors are known to make noises while function, however this does not affect accuracy or job function. However we recommend to check your wiring for solid connections, and for good connectivity!



On a personal note, here is one cool video dealing with making songs with stepper motors!

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I bought and built the Blacktooth laser cutter. It works, but one of the stepper motors makes a loud static hiss a second after the CNC power supply is turned on or off, and makes loud tweets and twirps when running. It seems to operate fine otherwise. I was wondering if it was "going bad" or if that is normal?

The 2.5 amp driver can only accept a power supply between 12 volts and 24 volts. If a 36 volt power supply is used for this driver, the main driver chip will exceed its maximum voltage rating and cause failure.

If you need to spin your motor faster, you can either use a more appropriate driver (i.e. 3.0 amp driver) or you can change the mechanical parts so the axis has faster travel.

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Can I connect a 36V power supply to 2.5 AMP Stepper Motor Driver. On the actual driver it shows 12V - 24V, but in the description and data sheet it indicates that it can accept 8V - 45V. Will I benefit from more powerful power supply. Thanks

Dealing with our inverters, they are built with a bit of margin on the input power. For our 220V VFD the margin is from 170-250V 50/60Hz, so running our VFD in your location will not be an issue! Our electronics will not have a issue running at 230V as well.

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Hello. I am interested in the green bull 6X long z CNC machine with electronics. I live in NZ, where the voltage is 230 V and 50 Hz. is it going to be possible to get the inverter to run here? Thanks!

Yes, we can create an only wood kit for you. Please give us a call on Monday to provide your name so we can look it up in our system to confirm your previous purchase and we will provide a PayPal invoice for the kit, since this is a special case.

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Is it possible to purchase the wood pieces only for a BlackToe 2.0/2.1? I have all of the hardware from my kit, but the wood pieces were lost in a recent move.

To verify, you are still getting the laser tube to fire, but the laser beam is weak and cannot cut or engrave any materials correct?

Have you checked your tube's tungsten post terminals to make sure they are getting good contact?
The Laser tube and laser power supply both have manufacture warranty, please email customerservice@buildyourcnc.com for further assistance.

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Hello, I have a blacktooth laser cutter, the machine has 10hrs of work, suddenly in the middle of a job the laser beam lost all power, I can still se the purple plasma beam but with no power or intensity, the tube is fine, water is running through and there is no arcing to the chasis or some other part. I think it might be a faulty PS how can I test it, Do I have a warranty on it?

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?

This is most likely a wiring issue. I would disconnect all of the power to the drivers and reconnect one at a time to isolate the problem.

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that was not helpful. I already did that way before submitting this question. there are not that many wires here and I have already rewired this a few times. I actually think its a software or interface board issue because it does work sometimes but then trips (possibly a amperage / voltage issue) I am using the interface board that has a parallel port and usb for 5V. are there different settings that I need to setup?

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I'm using the big 651oz in stepper motor for X and Y and the smaller 325 for the z and X and Y keep tripping when I try to tune the motors on Mach3 but Z seems to work. I have to turn power on and off to reset....is this a wiring issue?

The e-stop should be wired like a limit switch and can also be within the same limit switch circuit. Use one of the input pins to create the e-stop circuit.

1. Run a wire from the input pin terminal to the e-stop switch red side (one of the two terminals on the red side). The red side is NC (Normally Closed).

2. Run a wire from the other side of the red side of the e-stop switch back to the gnd terminal (or to the next switch - limit switch, NC terminal, then back to gnd, or to the next NC terminal of the next switch, do you see a recursive pattern here?).

The wire that you use for the connections should be shielded and the shielding and any other loose wire within the cable should be tied to gnd.

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Hi - I have wired in a breakout board (with relay) as per suggested wiring instructions (black toe 2X4). I want to wire in an estop but need some guidance on wiring. Also Mach3 is requesting I reset the estop, which suggests its expecting one? Can anyone help? Thanks. Miles

You can test the power supply, but you will need to take extra special care since the voltage on the high tension line can be lethal. Go to this instructable to see all the step on testing the power supply:

http://www.instructables.com/id/How-to-test-and-set-a-Chinese-China-made-CO2-Laser/?ALLSTEPS

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I am building the Blacktooth laser cutter. What is the safest and most accurate way to test the output of the laser power supply WITHOUT connecting the laser tube? Can I use a standard multimeter and measure the voltage output of the laser power supply?