Can you check if there are cracks in the inner glass tube? Also, check to see if there is water between the inner glass tube and the outer glass tube. That will give you an indication of cracking in the inner glass tube.

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I was in the process of aligning mirrors for our vertical XL and suddenly the laser does not fire anymore, there is an arcing sound and a light near the Anode (positive) connector of the tube on the very inside. Do you think the laser tube would go bad so quickly? how could we avoid this?

If the sensors are NC (normally closed) you can wire them in series. If the sensors are NO (Normally Open) you can still wire them to the same input, but the wiring needs to be in parallel (like a ladder). I have more information on the following video:

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[788] Thanks for the oportunity to ask, I am building a cnc and using npn closed sensors could you help me with the conection of these, do i still connect them in series if i use more than two in each axis. Also you mention that a stop switch should be connected grd and input to the controller would that be done after the 24v power supply. Thanks r

Can you send me a link to the digitizer you are using?

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Hi my names is Minh Truong I would like to said thank you very much for your video I got the system mach3 working fine but one thing I can NOT set and config the digitizer on the board IN4 I am not sure how to setup because in the Mach3 pin 14 for digitizer Please shoe me hoe to set it up for the digitizer.

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.

Your question caused me to make a quick video to understand how the pokeys57CNC controller works with a THC.

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[596] Would you help with the Hook up and the Configuration and whether it is in the Plugin or mach 4 control configuration that needs to be set. I decided to use the ultra fast encoders connector pin #8, 12 and 13 for Arc ok, UP and Down. Please advise what setting to set to make it all work. Thank you very much for your help!

Yes, if the power supplies were supplied by us, we will exchange them with 110v equivalent power supplies.

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Hello, I am a student working on a CO2 laser. We recently ordered two 40watt CO2 laser tubes and two 40 Watt CO2 Laser Tube Power Supply at 220V. However, our school is unable to use them due to being 220v. Is it possible to exchange these for the 110v supply, or is there a way we can go about connecting it at 110v instead of 220v? Thank you.

If you need to create a laser engraving system that engraves on a large rotating drum. You will need the motors, drivers, laser control system, laser tube, power supply for the laser and motion drives, and the mechanical and structural components to turn the drum (X axis) and move the y axis.

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I wish to laser engrave wood drum shells. (musical instrument) A X axis with a 3 roller system, 2 passive inside the cylindrical shell, one driven to move the shell around it's circumference would suit my needs. I have 20 design engineering in my past, I could design up what I need in Autocad but have no idea how to automate the system and make it work. college was 20 years ago lol! 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?

Fusion 360 is a program that allows you to design in a parametric 3 dimensional environment and also provides a great CAM toolset. Fusion 360 will produce the gcode with the CAM capabilities. The gcode is used to move the machine in various ways in order to mill the material; however, software is needed to interpret this gcode and cause the machine to move according to the gcode instructions. This is called control software. So Fusion is CAD/CAM, and you still need "control". Mach3 is one example of control software for milling and is highly recommended.

Install Mach3 onto the computer that will connect to the redFly(CNC electronics), then configure the Mach3 parameters for the machine (motor tuning, plug-ins, inputs/output, etc.). Home the machine, load the gcode into Mach3 and the machine will move according to the gcode.

A word of caution, since you are new to CNC machines, make sure you familiar yourself with the machine and the movements of the machine specific to how the gcode is arranged with respect to the coordinates of the machine. Try with very simple gcode until you get a very good understanding of how the machine will move.

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Hello, My friend has purchased the Redfly and I am helping him a little with it. We are both very new to CNC. I am using fusion 360 at the moment. This can tool path and create gcode. I was wondering if Mach 3 or similar is still needed. Is there a tutorial you could point me to that explains how to get the Gcode from the PC, via Serial to the Redfly?

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 bought a gantry mounted spindle water cooler kit. I cut off the plug terminal on the end. There are three wires and it is labeled as a 12 V DC motor. How do I wire it to the power supply? No combination of connections seems to work. the fan runs fine. it

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 bought a gantry mounted spindle water cooler kit. I cut off the plug terminal on the end. There are three wires and it is labeled as a 12 V DC motor. How do I wire it to the power supply? No combination of connections seems to work. the fan runs fine. it

Depending on the board you are currently using, either the Parallel or USB interface board.
The parallel interface needs the USB cable for power(5v) and the parallel cord for communicating from the board to the computer and vise versa.
The USB interface board, will need a keyboard jog header made to fit the 12 pin connector(2 x 6). Making this connector will allow you to be able to wire it to a external panel, where you can use it to jog your machine rather than using the onscreen jogging.


Please contact customerservice@buildyourcnc.com for further assistance.

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I buy a four axis kits and i connect all parts respecting the plan. The USB connector is using for électric alimentation of the When I want to activate the engine with the computer keyboard , nothing works. The current 5VDC since green light is on but when I check with a voltmeter each pin , then I see that there is no current. What's happening?

Thanks for the information. The system I sell (Ruida DSP Controller RD RDC6442G) can help as it is specifically designed for Laser machines and can be very fast for engraving swings, acceleration, and speed control specifically designed for the laser intensity. The Ruida controller works very well with the Lightburn software. Ruida controllers are very widely used in the laser community.

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[787] Few month ago I finished my own design an also finish to built it . The control I use is arduino uno with cnc shield v3. The machine works perfectly. But... very slow. I try and change the controller to dlc32 v2. It does not work for me. Too many problems. I tried every option fro github and only frustration is what I gain. Can your system be helpfull?. I use light burn as my design program

Depending on the type of motors and connection type, you could adapt your motors to work with our electronic packages, but you will receive additional motors since our kit is complete.

Now you will have to take into affect the actual motors you have and compare or get accurate replacements(Ex. our 425 oz motor(1/4" input shaft) will have to be same size or similar entry holes)

Your Controller board will be the major issue, due to its wiring and processing manner, you can view the connections for our breakout boards to compare with yours! (parallel: https://www.buildyourcnc.com/item/electronicsAndMotors-parallel-breakout-relay#prettyPhoto/2/)(USB: https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-USB-Controller-Breakout#prettyPhoto/2/)
Email(customerservice@buildyourcnc.com for further help)

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I purchased the original instructions about 3 years ago and successfully built that device. Now I am looking at the 13X36 Bluechick base kit. Will all my original electronics work with the new kit? Is there a parts list that you could send me for the 13x36 Kit?

This video should provide enough guidance to understand the PWM signal on the Mach3 USB controller:

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[575] Hello, I'm wondering if you can provide advice how to wire this USB board where for spindle I would like to use chinese servo motor and driver (TD3) - speed control mode. Especially how to connect - AVI, ACM and 10V (24V is clear). I am still not sure how to power on and off spindle itself. Thank you in advance. Vaclav

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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The electronics package I just bought from you (Book Build) is different from your wireing diagrams and video tutorials. Is there an updated wiring diagram available? Is the USB port on the breakout board connected directly to the computer USB to supply 5 volts? Thank you.

Dealing with a 4' x 12' machine, our blackFoot kit will be your best option. Since our machines are only limited to the width but not length wise, you can add however much extra rail and roller chain to accommodate your extended length. Now adding our 4th axis kit (https://www.buildyourcnc.com/item/axes-4th) will be needed for your 4th axis (unless custom design is required).

These items will be the best requirements to build a 4' x 12' 4th axis machine.
Machine (either parallel/USB BoB): https://www.buildyourcnc.com/blackFoot48v40.aspx
4th axis: https://www.buildyourcnc.com/item/axes-4th

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Hi, I am very interested in this CNC Router unit [4'x8'], but from South Africa with our exchange rat [1$ =13,4 ZAR presently, make these kits out of reach. The plans part has been discontinued, but in our situation, would you reconsider and supply full plans and instructions at a cost? please let me know.

We are toying with the idea of re-introducing plans for some of our machines. Please give us a call to discuss further.

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Hi, I am very interested in this CNC Router unit [4'x8'], but from South Africa with our exchange rat [1$ =13,4 ZAR presently, make these kits out of reach. The plans part has been discontinued, but in our situation, would you reconsider and supply full plans and instructions at a cost? please let me know.

The Mach3 USB controller requires a minimum of 12V and a maximum of 24V to the DCM and 24V terminals. The DCM is the GND or DC negative terminal, and the 24V terminal is the positive terminal.

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I bought the Mach3 board and am trying to connect it with an AMB 1400 DI router, which has a normal power supply (1400W) as well as a digital interface which has three wires: a brown wire (10-26V, power supply), a white wire (ground) and a green wire (0-10V signal). I'm no electronics guy--how do I connect the digital interface of the AMB to the Mach3 board?