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Question #: 13759

Question: Can a CO2 CNC laser machine be used for welding of thermoplastic materials?

Current Solution

That is a good question. We have not tried to weld thermoplastics using our CO2 Lasers. It is possible since the laser outputs a heat source and at the right intensity and speed, the thermoplastic can be heated and melted rather than instantaneously vaporized and off gassed. I have done research to see if CO2 laser can weld thermoplastics with positive results.

Our CO2 lasers are typical of other laser cutters on the market, so if their literature, or examples you have found, successfully weld thermoplastics, then ours will probably be able to as well.

In some cutting test with different speeds and intensities, the kerf has welded back together; however, this was caused by an unintentional process rather than an intentional one.

Respond:

Other Possible Solutions to this Question

  • Would any of your CNC laser machines be appropriate for welding of thermoplastic materials?

    That is a good question. We have not tried to weld thermoplastics using our CO2 Lasers. It is possible since the laser outputs a heat source and at the right intensity and speed, the thermoplastic can be heated and melted rather than instantaneously vaporized and off gassed. I have done research to see if CO2 laser can weld thermoplastics with positive results.

    Our CO2 lasers are typical of other laser cutters on the market, so if their literature, or examples you have found, successfully weld thermoplastics, then ours will probably be able to as well.

    In some cutting test with different speeds and intensities, the kerf has welded back together; however, this was caused by an unintentional process rather than an intentional one.

    Click the link to respond:
    Would any of your CNC laser machines be appropriate for welding of thermoplastic materials?

  • Would any of your CNC laser machines be appropriate for welding of thermoplastic materials?

    That is a good question. We have not tried to weld thermoplastics using our CO2 Lasers. It is possible since the laser outputs a heat source and at the right intensity and speed, the thermoplastic can be heated and melted rather than instantaneously vaporized and off gassed. I have done research to see if CO2 laser can weld thermoplastics with positive results.

    Our CO2 lasers are typical of other laser cutters on the market, so if their literature, or examples you have found, successfully weld thermoplastics, then ours will probably be able to as well.

    In some cutting test with different speeds and intensities, the kerf has welded back together; however, this was caused by an unintentional process rather than an intentional one.

    Click the link to respond:
    Would any of your CNC laser machines be appropriate for welding of thermoplastic materials?

  • WHAT MATERIALS CAN THE GREENBULL MACHINE CUT? LASER ETCH?

    The Greenbull machine can cut a very wide variety of materials ranging from foam to aluminum. We recommend the use of our 2.2kW spindle to allow the greatest flexibility. Aside from that, the most important thing is to use an appropriate end mill for the material you are cutting and to use appropriate speeds and feed rates.



    BYCNC Response:
    Our 40W laser can cut up to about 1/4" materials ranging from wood and acrylic down through lighter materials such as leather, fabric, foam, etc. Speed and final cut are greatly enhanced by an air assist upgrade. We also offer an 80W laser which has approximately twice the capabilities of the 40W.

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    WHAT MATERIALS CAN THE GREENBULL MACHINE CUT? LASER ETCH?

  • What materials can the Greenbull machine cut? What materials can the laser cut? Can the laser etch?

    The Greenbull machine can cut a very wide variety of materials ranging from foam to aluminum. We recommend the use of our 2.2kW spindle to allow the greatest flexibility. Aside from that, the most important thing is to use an appropriate end mill for the material you are cutting and to use appropriate speeds and feed rates.



    BYCNC Response:
    Our 40W laser can cut up to about 1/4" materials ranging from wood and acrylic down through lighter materials such as leather, fabric, foam, etc. Speed and final cut are greatly enhanced by an air assist upgrade. We also offer an 80W laser which has approximately twice the capabilities of the 40W.

    Click the link to respond:
    What materials can the Greenbull machine cut? What materials can the laser cut? Can the laser etch?

  • Can anti-freeze be used as a coolant for your 40W laser tube? I live where winter temperatures are below freezing and my CNC machine is in my unheated garage.

    Using Anti-Freeze in the cooling system with either our spindle or our laser tubes will not have any problems and we recommend using a small amount in locations where temperature is freezing or below.
    Although we do not recommend using an entire gallon of anti-freeze rather just a small quantity with tap water will be sufficient.

    Additional Information:


    Additional Information:
    All last winter, the temperature was below freezing and sometimes below zero. I used 100% antifreeze for the spindle coolant. Worked great !! All the spindle needs is any type of coolant flowing through it to take the heat away. I use three gallons of antifreeze in a tub with a fish-tank pump to push the antifreeze through. 100% antifreeze works great in cold or hot winter.

    Additional Information:
    Excellent tip. Thank you for this correction. So it is OK to use antifreeze solely as a cooling method.

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    Can anti-freeze be used as a coolant for your 40W laser tube? I live where winter temperatures are below freezing and my CNC machine is in my unheated garage.

  • I want to cut the ends of steel pipes circularly as preparation for welding by plasma cutter , can you supply small machine?

    Yes, we can supply the parts for a machine that will turn pipes so they can be cut as they are turning. Are you intending the machine to cut using a milling process, or a plasma process?

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    I want to cut the ends of steel pipes circularly as preparation for welding by plasma cutter , can you supply small machine?

  • WHAT KIND OF MATERIALS CAN MACHINE?

    There are almost no limits to the kind of materials you can machine. Anything from wood or plastic to exotic materials like stainless steel can be cut as long as the part can be safely and firmly held and the proper cutting tool and cutting speed are used

    Click the link to respond:
    WHAT KIND OF MATERIALS CAN MACHINE?

  • CAN YOUR PRODUCTS OF MACHINES BE USED TO CREATE PLASMA TABLE?

    The plasma nozzle must be close to the cutting area and you will need some way to keep the nozzle at the right level with some type of device. The spray is downward, so you will need a contained area with a sheet of water at the bottom to extinguish he spray. You should have no problem using our machines for this application since you would need to product the table bed.

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    CAN YOUR PRODUCTS OF MACHINES BE USED TO CREATE PLASMA TABLE?

  • I have the build your own CNC kit 3 Axis CNC Machine 2008, were can I get the Gcode or vector files for it ? I wanted to have it laser cut
  • I HAVE A SIGN SHOP AND WE NEED CUT ALUMINUM, PLEXIGASS, FOAM AND OTHER MATERIALS FOR SIGNS. CAN YOU TELL ME WHAT MACHINE WE NEED? I LOOKING 4'X8' OR 5' X 10'

    The overall size of the machine, really depends on both the area available to you and also the overall size of material being used. Now our larger machines (blackFoot, greenBull, greenLean) can cut all the materials mentioned above, and if equipped with our 2.2kW spindle you will be accurate up to ten thousandths of an inch.
    Our greenBull machine does have an option for a long-z axis, that was especially designed to cut foam, but depending on the overall size it might not be a requirement for the specified request.

    Click the link to respond:
    I HAVE A SIGN SHOP AND WE NEED CUT ALUMINUM, PLEXIGASS, FOAM AND OTHER MATERIALS FOR SIGNS. CAN YOU TELL ME WHAT MACHINE WE NEED? I LOOKING 4'X8' OR 5' X 10'

  • can you supply a new board and a better software program for a CO2 laser cutter and engraver

    If you need a new laser controller for CO2, we can definitely supply one.

    This is the laser controller that we sell: https://www.buildyourcnc.com/item/Laser-Component-Laser-Control-System

    The laser controller works with a program called LaserCAD and is compatible with most typical file types.

    The laser controller will work with any laser tube and laser tube power supply that requires 5V digital signals and PWM.

    Click the link to respond:
    can you supply a new board and a better software program for a CO2 laser cutter and engraver

  • I have been asked to provide an exhaust for the Blacktooth Laser Cutter CO2 40W. I see no specifications or guidelines for exhausting fumes from the machine. Can someone help me?

    Exhausting the blackTooth laser cutter is a very important consideration and should be taken seriously, especially if you are cutting materials that give off toxic fumes when the material is burned. You will want a 4 inch hose to connect from the blackTooth to a blower, and another 4 inch hose to connect from the blower to the outside. The blower should be sufficient to provide completely negative pressure within the laser enclosure so there will be no escape of gasses.

    The connections at the machine, at the blower and at the location the hose exhausts outside should be thoroughly checked for leaks. Use a gasket, or silicone. Once complete, try cutting a non-toxic material that will give off an odor (wood, or non-toxic plastic) and try the system and determine if the smell is present.

    Click the link to respond:
    I have been asked to provide an exhaust for the Blacktooth Laser Cutter CO2 40W. I see no specifications or guidelines for exhausting fumes from the machine. Can someone help me?

  • What is the Max thickness of wood that can be placed in the 4x8 cnc milling machine?

    Tricky question. That depends on the way the table is built. If the table is built with a step down area, you can put as thick a material as you want. If the table is flat, the clearance is 6 inches. Now, the thickness depends on the size end mill you insert into the collet. If you use an end mill that has a 2 inch cutting length, then your material thickness is 4 inches without a spoilboard. If you need to mill thick material, I would suggest that you fashion the table accordingly so the table can accomodate any thickness you desire. That's one of the great aspects of the buildyourcnc machines, adaptability.

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    What is the Max thickness of wood that can be placed in the 4x8 cnc milling machine?

  • ok I Build my CNC machine table and now need a complete set for motor and software how you can help me

    Yes, I will need to know more specifics of the machine so I can recommend the correct electronics.

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    ok I Build my CNC machine table and now need a complete set for motor and software how you can help me

  • Do you have any machine with 4th axis that mills hard materials like steel?

    We currently do not have a 4th axis machine, but have a 4th axis available. We are in the process of developing a 4th axis kit, you can see the available R&D projects here(https://www.buildyourcnc.com/ResDev.aspx).

    Click the link to respond:
    Do you have any machine with 4th axis that mills hard materials like steel?

  • Can you supply an electronics package for a dual x-axis CNC machine (X, Y, Z)

    Yes, we have a 4 axis combo kit available under Motion Electronics.

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    Can you supply an electronics package for a dual x-axis CNC machine (X, Y, Z)

  • in your book - Build you own CNC Machine. Can I use 9/32" thick bearing instead of 1/4" thick?

    As long as the bearing has a minimum thickness of 1/4" and 9/32" is a bit thicker, there will be no problem with the book build using the bearing that is 1/32" thicker. There is actually more surface area which is better.

    Click the link to respond:
    in your book - Build you own CNC Machine. Can I use 9/32" thick bearing instead of 1/4" thick?

  • Is there any way i can order replacement wooden parts for a cnc machine

    Yes, you can order replacement wooden parts, but since we don't have them as products on the website, you will need to call us directly using the number at the top right corner of the website by hovering over "need help?"

    Click the link to respond:
    Is there any way i can order replacement wooden parts for a cnc machine

  • What is the bill of materials included in the build your own laser 2' x 4' 40 watt

    The general bill of materials for the blackTooth 24"x20" laser system is as follows:

    - The structural components (MDO and Plastic parts)
    - The hardware to assemble all of the structural and mechanical parts
    - Mechanical parts like v-groove bearings, bearings for shafts, shafts, pulleys, belts, etc.
    - All of the motion electronics like motors, drivers, and laser controller
    - Wire to connect all of the electronics
    - All of the laser components including the laser tube, mirrors, mirror mounts, nozzle and lens
    - Pneumatic components including the air pump and tubing
    - Hydraulic components to cool the laser tube including a water pump and tubing

    blackTooth 24"x20" Laser

    Click the link to respond:
    What is the bill of materials included in the build your own laser 2' x 4' 40 watt